Commit Graph

5135 Commits

Author SHA1 Message Date
Damien Cassou a654ddac08 drivers/video/msm/mddi_client_nt35399.c: use devm_ functions
The various devm_ functions allocate memory that is released when a driver
detaches. This patch replaces the use of kzalloc by devm_kzalloc.

Additionally, this patch fixes a memory leak: some memory was allocated for
'panel' but not released when the subsequent call to setup_vsync fails.

Signed-off-by: Damien Cassou <damien.cassou@lifl.fr>
Acked-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-08-23 13:16:11 +00:00
Damien Cassou b7e69add39 drivers/video/bf54x-lq043fb.c: use devm_ functions
The various devm_ functions allocate memory that is released when a driver
detaches. This patch replaces the use of kzalloc by devm_kzalloc.

Signed-off-by: Damien Cassou <damien.cassou@lifl.fr>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-08-23 13:15:40 +00:00
Damien Cassou b2ca7f4d74 drivers/video/jz4740_fb.c: use devm_ functions
The various devm_ functions allocate memory that is released when a driver
detaches. This patch uses these functions for data that is allocated in the
probe function of a platform device and is only freed in the remove function.

Signed-off-by: Damien Cassou <damien.cassou@lifl.fr>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-08-23 13:14:15 +00:00
Damien Cassou e07d232335 drivers/video/epson1355fb.c: use devm_ functions
The various devm_ functions allocate memory that is released when a driver
detaches. This patch uses these functions for data that is allocated in the
probe function of a platform device and is only freed in the remove function.

Signed-off-by: Damien Cassou <damien.cassou@lifl.fr>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-08-23 13:13:27 +00:00
Jingoo Han 776213493f video: s3c-fb: use devm_clk_get()
The devm_ functions allocate memory that is released when a driver
detaches. This patch uses devm_clk_get() for these functions.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-08-23 13:11:24 +00:00
Sachin Kamat 4c4ceee0de video: exynos-mipi-dsi: Add missing static storage class specifiers
Fixes the following sparse warnings:
drivers/video/exynos/exynos_mipi_dsi.c:208:22: warning:
symbol 'exynos_mipi_dsi_find_lcd_device' was not declared. Should it be static?
drivers/video/exynos/exynos_mipi_dsi.c:268:22: warning:
symbol 'exynos_mipi_dsi_bind_lcd_ddi' was not declared. Should it be static?

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Donghwa Lee <dh09.lee@samsung.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-08-23 13:10:37 +00:00
Damien Cassou d913f36e02 video: exynos_dp: use devm_clk_get function
The devm_clk_get function allocates memory that is released when a driver
detaches. This patch uses this function for data that is allocated in the probe
function of a platform device and is only freed in the remove function.

Additionally, this patch removes a null check after platform_get_resource that
is redundant with the one done by devm_request_and_ioremap.

Signed-off-by: Damien Cassou <damien.cassou@lifl.fr>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-08-23 13:08:28 +00:00
Damien Cassou c1f383d97c drivers/video/fsl-diu-fb.c: use devm_ functions
The various devm_ functions allocate memory that is released when a driver
detaches.  This patch uses these functions for data that is allocated in
the probe function of a platform device and is only freed in the remove
function.

Signed-off-by: Damien Cassou <damien.cassou@lifl.fr>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-08-23 13:06:12 +00:00
Damien Cassou ae1937f69b drivers/video/gbefb.c: use devm_ functions
The various devm_ functions allocate memory that is released when a driver
detaches.  This patch uses these functions for data that is allocated in
the probe function of a platform device and is only freed in the remove
function.

Signed-off-by: Damien Cassou <damien.cassou@lifl.fr>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-08-23 13:01:58 +00:00
Damien Cassou 0b7ca58961 drivers/video/mbx/mbxfb.c: use devm_ functions
The various devm_ functions allocate memory that is released when a driver
detaches.  This patch uses these functions for data that is allocated in
the probe function of a platform device and is only freed in the remove
function.

Signed-off-by: Damien Cassou <damien.cassou@lifl.fr>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-08-23 13:01:04 +00:00
Damien Cassou e31f874584 drivers/video/bf537-lq035.c: use devm_ functions
The various devm_ functions allocate memory that is released when a driver
detaches.  This patch uses these functions for data that is allocated in
the probe function of a platform device and is only freed in the remove
function.

Signed-off-by: Damien Cassou <damien.cassou@lifl.fr>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-08-23 12:59:58 +00:00
Damien Cassou d1bea50288 drivers/video/cobalt_lcdfb.c: use devm_ functions
The various devm_ functions allocate memory that is released when a driver
detaches.  This patch uses these functions for data that is allocated in
the probe function of a platform device and is only freed in the remove
function.

Signed-off-by: Damien Cassou <damien.cassou@lifl.fr>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-08-23 12:59:02 +00:00
Damien Cassou be86781497 drivers/video/ep93xx-fb.c: use devm_ functions
The various devm_ functions allocate memory that is released when a driver
detaches.  This patch uses these functions for data that is allocated in
the probe function of a platform device and is only freed in the remove
function.

Signed-off-by: Damien Cassou <damien.cassou@lifl.fr>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-08-23 12:58:24 +00:00
Jingoo Han d5c0eed01c video: exynos_dp: adjust voltage swing and pre-emphasis during Link Training
This patch adds adjustement for voltage swing and pre-emphasis during
Link Training procedure. According to the DP specification, unless all
the LANEx_CR_DONE bits are set, the transmitter must read
the ADJUST_REQUEST_LANEx_x, increase the voltage swing according to
the request, and update the TRAINING_LANEx_SET bytes to match the new
voltage swing setting.

Refer to the DP specification v1.1a, Section 3.5.1.3 Link Training.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-08-23 12:57:18 +00:00
Grazvydas Ignotas c1c52848ce OMAPFB: fix framebuffer console colors
omapfb does not currently set pseudo palette correctly for color depths
above 16bpp, making red text invisible, command like
  echo -e '\e[0;31mRED' > /dev/tty1
will display nothing on framebuffer console in 24bpp mode.
This is because temporary variable is declared incorrectly, fix it.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Cc: stable@vger.kernel.org # v3.x
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-08-23 12:37:22 +00:00
Tomi Valkeinen 35d6786648 OMAPDSS: Fix SDI PLL locking
Commit f476ae9dab (OMAPDSS: APPLY: Remove
DISPC writes to manager's lcd parameters in interface) broke the SDI
output, as it causes the SDI PLL locking to fail.

LCLK and PCLK divisors are located in shadow registers, and we normally
write them to DISPC registers when enabling the output.  However, SDI
uses pck-free as source clock for its PLL, and pck-free is affected by
the divisors. And as we need the PLL before enabling the output, we need
to write the divisors early.

It seems just writing to the DISPC register is enough, and we don't need
to care about the shadow register mechanism for pck-free. The exact
reason for this is unknown.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reported-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-08-23 12:37:21 +00:00
Dan Carpenter 2568236256 video: mb862xxfb: prevent divide by zero bug
Do a sanity check on these before using them as divisors.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-08-23 12:34:00 +00:00
Julia Lawall 01817d194a drivers/video/auo_k190x.c: drop kfree of devm_kzalloc's data
Using kfree to free data allocated with devm_kzalloc causes double frees.

The semantic patch that fixes this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression x;
@@

x = devm_kzalloc(...)
...
?-kfree(x);
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-08-23 12:32:09 +00:00
Bruno Prémont 72caa5fb94 fbcon: Fix bit_putcs() call to kmalloc(s, GFP_KERNEL)
Switch to kmalloc(,GFP_ATOMIC) in bit_putcs to fix below trace:

[    9.771812] BUG: sleeping function called from invalid context at /usr/src/linux-git/mm/slub.c:943
[    9.771814] in_atomic(): 1, irqs_disabled(): 1, pid: 1063, name: mount
[    9.771818] Pid: 1063, comm: mount Not tainted 3.5.0-jupiter-00003-g8d858b1-dirty #2
[    9.771819] Call Trace:
[    9.771838]  [<c104f79b>] __might_sleep+0xcb/0xe0
[    9.771844]  [<c10c00d4>] __kmalloc+0xb4/0x1c0
[    9.771851]  [<c1041d4a>] ? queue_work+0x1a/0x30
[    9.771854]  [<c1041dcf>] ? queue_delayed_work+0xf/0x30
[    9.771862]  [<c1205832>] ? bit_putcs+0xf2/0x3e0
[    9.771865]  [<c1041e01>] ? schedule_delayed_work+0x11/0x20
[    9.771868]  [<c1205832>] bit_putcs+0xf2/0x3e0
[    9.771875]  [<c12002b8>] ? get_color.clone.14+0x28/0x100
[    9.771878]  [<c1200d2f>] fbcon_putcs+0x11f/0x130
[    9.771882]  [<c1205740>] ? bit_clear+0xe0/0xe0
[    9.771885]  [<c1200f6d>] fbcon_redraw.clone.21+0x11d/0x160
[    9.771889]  [<c120383d>] fbcon_scroll+0x79d/0xe10
[    9.771892]  [<c12002b8>] ? get_color.clone.14+0x28/0x100
[    9.771897]  [<c124c0b4>] scrup+0x64/0xd0
[    9.771900]  [<c124c22b>] lf+0x2b/0x60
[    9.771903]  [<c124cc95>] vt_console_print+0x1d5/0x2f0
[    9.771907]  [<c124cac0>] ? register_vt_notifier+0x20/0x20
[    9.771913]  [<c102b335>] call_console_drivers.clone.5+0xa5/0xc0
[    9.771916]  [<c102c58e>] console_unlock+0x2fe/0x3c0
[    9.771920]  [<c102ca16>] vprintk_emit+0x2e6/0x300
[    9.771924]  [<c13f01ae>] printk+0x38/0x3a
[    9.771931]  [<c112e8fe>] reiserfs_remount+0x2ae/0x3e0
[    9.771934]  [<c112e650>] ? reiserfs_fill_super+0xb00/0xb00
[    9.771939]  [<c10ca0ab>] do_remount_sb+0xab/0x150
[    9.771943]  [<c1034476>] ? ns_capable+0x46/0x70
[    9.771948]  [<c10e059c>] do_mount+0x20c/0x6b0
[    9.771955]  [<c10a7044>] ? strndup_user+0x34/0x50
[    9.771958]  [<c10e0acc>] sys_mount+0x6c/0xa0
[    9.771964]  [<c13f2557>] sysenter_do_call+0x12/0x26

According to comment in bit_putcs() that kammloc() call only happens
when fbcon is drawing to a monochrome framebuffer (which is my case with
hid-picolcd).

Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-08-23 12:29:32 +00:00
Paul Cercueil e432964a3c fbcon: prevent possible buffer overflow.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-08-23 12:22:46 +00:00
Chandrabhanu Mahapatra 195e672a76 OMAPDSS: DPI: Remove cpu_is_xxxx checks
The OMAP3 checks have been removed and replaced by a dss feature
FEAT_DPI_USES_VDDS_DSI for cleaner implementation. The patches
"OMAP: DSS2: enable VDDS_DSI when using DPI" (8a2cfea8cc) by Tomi Valkeinen
<tomi.valkeinen@nokia.com> and "ARM: omap: fix oops in
drivers/video/omap2/dss/dpi.c" (4041071571) by Russell King
<rmk+kernel@arm.linux.org.uk> had introduced these checks. As it is evident
from these patches a dependency exists for some DSS pins on VDDS_DSI which is
better shown by dss feature FEAT_DPI_USES_VDDS_DSI.

Signed-off-by: Chandrabhanu Mahapatra <cmahapatra@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-08-22 11:43:05 +03:00
Chandrabhanu Mahapatra ee223b7030 OMAPDSS: VENC: Remove cpu_is_xxxx checks
OMAP4 checks are removed from VENC to provide it a cleaner interface. These
checks were introduced by patches "HACK: OMAP: DSS2: VENC: disable VENC on OMAP4
to prevent crash" (ba02fa37de) by Tomi Valkeinen <tomi.valkeinen@ti.com> and
"OMAPDSS: VENC: fix NULL pointer dereference in DSS2 VENC sysfs debug attr on
OMAP4" (cc1d3e032d)  by Danny Kukawka <danny.kukawka@bisect.de> to prevent VENC
from crashing OMAP4 kernel.

Signed-off-by: Chandrabhanu Mahapatra <cmahapatra@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-08-22 11:43:04 +03:00
Chandrabhanu Mahapatra 185bae1095 OMAPDSS: DSS: Cleanup cpu_is_xxxx checks
All the cpu_is checks have been moved to dss_init_features function providing a
much more generic and cleaner interface. The OMAP version and revision specific
initializations in various functions are cleaned and the necessary data are
moved to dss_features structure which is local to dss.c.

Signed-off-by: Chandrabhanu Mahapatra <cmahapatra@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-08-22 11:43:03 +03:00
Chandrabhanu Mahapatra ba1bc5bb1d OMAPDSS: DSS: Remove redundant functions
Functions dss_calc_clock_rates() and dss_get_clock_div() are removed as these
functions have become redundant and no longer used.

Signed-off-by: Chandrabhanu Mahapatra <cmahapatra@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-08-22 11:43:03 +03:00
Chandrabhanu Mahapatra dcbe765b4f OMAPDSS: DISPC: Cleanup cpu_is_xxxx checks
All the cpu_is checks have been moved to dispc_init_features function providing
a much more generic and cleaner interface. The OMAP version and revision
specific functions and data are initialized by dispc_features structure which is
local to dispc.c.

Signed-off-by: Chandrabhanu Mahapatra <cmahapatra@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-08-22 11:43:03 +03:00
Tomi Valkeinen 0b3d9cfe7d OMAPDSS: HDMI: fix initial HDMI enable
Commit 7849398fa2 introduced a bug,
causing the following error to be reported:

[  370.827819] cannot lock PLL
[  370.830749] CFG1 0x1e
[  370.833160] CFG2 0x602004
[  370.835876] CFG4 0x40000
[  370.838562] omapdss HDMI: Failed to lock PLL

However, HDMI output is still enabled.

The problem is that we enable the HDMI video output temporarily when
reading EDID or detecting if a HDMI cable is connected (ugh), and the
commit above changes the behavior of the driver so that the video
timings are not yet configured at the point when EDID is read.

This patch fixes the problem by configuring the initial VGA timings at
HDMI probe.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-08-22 11:33:32 +03:00
Dave Airlie d8636a2717 fbcon: fix race condition between console lock and cursor timer (v1.1)
So we've had a fair few reports of fbcon handover breakage between
efi/vesafb and i915 surface recently, so I dedicated a couple of
days to finding the problem.

Essentially the last thing we saw was the conflicting framebuffer
message and that was all.

So after much tracing with direct netconsole writes (printks
under console_lock not so useful), I think I found the race.

Thread A (driver load)    Thread B (timer thread)
  unbind_con_driver ->              |
  bind_con_driver ->                |
  vc->vc_sw->con_deinit ->          |
  fbcon_deinit ->                   |
  console_lock()                    |
      |                             |
      |                       fbcon_flashcursor timer fires
      |                       console_lock() <- blocked for A
      |
      |
fbcon_del_cursor_timer ->
  del_timer_sync
  (BOOM)

Of course because all of this is under the console lock,
we never see anything, also since we also just unbound the active
console guess what we never see anything.

Hopefully this fixes the problem for anyone seeing vesafb->kms
driver handoff.

v1.1: add comment suggestion from Alan.

Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-08-22 14:00:35 +10:00
Tejun Heo 136b5721d7 workqueue: deprecate __cancel_delayed_work()
Now that cancel_delayed_work() can be safely called from IRQ handlers,
there's no reason to use __cancel_delayed_work().  Use
cancel_delayed_work() instead of __cancel_delayed_work() and mark the
latter deprecated.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Jens Axboe <axboe@kernel.dk>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Roland Dreier <roland@kernel.org>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-08-21 13:18:24 -07:00
Tejun Heo 203b42f731 workqueue: make deferrable delayed_work initializer names consistent
Initalizers for deferrable delayed_work are confused.

* __DEFERRED_WORK_INITIALIZER()
* DECLARE_DEFERRED_WORK()
* INIT_DELAYED_WORK_DEFERRABLE()

Rename them to

* __DEFERRABLE_WORK_INITIALIZER()
* DECLARE_DEFERRABLE_WORK()
* INIT_DEFERRABLE_WORK()

This patch doesn't cause any functional changes.

Signed-off-by: Tejun Heo <tj@kernel.org>
2012-08-21 13:18:23 -07:00
Archit Taneja 89e7195634 OMAPDSS: VENC: Maintian copy of video output polarity info in private data
The VENC driver currently relies on the omap_dss_device struct to configure the
video output polarity. This makes the VENC interface driver dependent on the
omap_dss_device struct.

Make the VENC driver data maintain it's own polarity field. A panel driver
is expected to call omapdss_venc_invert_vid_out_polarity() before enabling the
interface.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-08-16 18:47:52 +05:30
Archit Taneja febe2905d0 OMAPDSS: VENC: Maintain copy of venc type in driver data
The VENC driver currently relies on the omap_dss_device struct to configure the
venc type. This makes the VENC interface driver dependent on the omap_dss_device
struct.

Make the VENC driver data maintain it's own 'venc type' field. A panel driver
is expected to call omapdss_venc_set_type() before enabling the interface or
changing the type via display sysfs attributes.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-08-16 18:10:17 +05:30
Archit Taneja 6e883324b2 OMAPDSS: RFBI: Maitain copy of rfbi timings in driver data
The RFBI driver currently relies on the omap_dss_device struct to receive the
rfbi specific timings requested by the panel driver. This makes the RFBI
interface driver dependent on the omap_dss_device struct.

Make the RFBI driver data maintain it's own rfbi specific timings field. The
panel driver is expected to call omapdss_rfbi_set_interface_timings() to
configure the rfbi timings before the interface is enabled.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-08-16 18:09:41 +05:30
Archit Taneja 0b3ffe397a OMAPDSS: DSI: Maintain copy of video mode timings in driver data
The DSI driver currently relies on the omap_dss_device struct to receive the
video mode timings requested by the panel driver. This makes the DSI interface
driver dependent on the omap_dss_device struct.

Make the DSI driver data maintain it's own video mode timings field. The panel
driver is expected to call omapdss_dsi_set_videomode_timings() to configure the
video mode timings before the interface is enabled.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-08-16 18:05:56 +05:30
Archit Taneja 6b84937577 OMAPDSS: DSI: Rename dsi_videomode_data to dsi_videomode_timings
The struct omap_dss_dsi_videomode_data holds fields which need to be configured
for DSI to operate in video mode. Rename the struct to dsi_videomode_timings.

One reason to do this is because most of the fields in the struct are timings
related. The other reason is to create a generic op for output specific
timings. This generic op can be considered as a way to set custom or private
timings for the output.

In the case of OMAP, DSI and RFBI require some more timings apart from the
relgular DISPC timings. The structs omap_dss_videomode_timings and rfbi_timings
can be considered as these output specific timings respectively.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-08-16 18:02:11 +05:30
Archit Taneja dca2b1522c OMAPDSS: DSI: Maintain copy of operation mode in driver data
The DSI driver currently relies on the omap_dss_device struct to know the mode
of operation of the DSI protocol(command or video mode). This makes the DSI
interface driver dependent on the omap_dss_device struct.

Make the DSI driver data maintain it's own operation mode field. The panel
driver is expected to call omapdss_dsi_set_operation_mode() before the interface
is enabled.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-08-16 18:02:00 +05:30
Archit Taneja 889b4fd7ee OMAPDSS: SDI: Maintain copy of data pairs in driver data
The SDI driver currently relies on the omap_dss_device struct to configure the
number of data pairs as specified by the panel. This makes the SDI interface
driver dependent on the omap_dss_device struct.

Make the SDI driver data maintain it's own data lines field. A panel driver
is expected to call omapdss_sdi_set_datapairs() before enabling the interface.
Even though we configure the number of data pairs here, this function would be
finally mapped to a generic interface op called set_data_lines. The datapairs
argument type has been changed from u8 to int at some places to be in sync with
the 'set_data_lines' ops of other interfaces.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-08-16 18:00:55 +05:30
Archit Taneja c6b393d4bc OMAPDSS: DPI: Maintain copy of number of data lines in driver data
The DPI driver currently relies on the omap_dss_device struct to configure the
number of data lines as specified by the panel. This makes the DPI interface
driver dependent on the omap_dss_device struct.

Make the DPI driver data maintain it's own data lines field. A panel driver
is expected to call omapdss_dpi_set_data_lines() before enabling the interface.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-08-16 18:00:55 +05:30
Archit Taneja 475989b763 OMAPDSS: RFBI: Maintain copy of number of data lines in driver data
The RFBI driver currently relies on the omap_dss_device struct to configure the
number of data lines as specified by the panel. This makes the RFBI interface
driver dependent on the omap_dss_device struct.

Make the RFBI driver data maintain it's own data lines field. A panel driver
is expected to call omapdss_rfbi_set_data_lines() to configure the pixel format
before enabling the interface or calling omap_rfbi_configure().

Signed-off-by: Archit Taneja <archit@ti.com>
2012-08-16 18:00:54 +05:30
Archit Taneja b02875be08 OMAPDSS: RFBI: Maintain copy of pixel size in driver data
The RFBI driver currently relies on the omap_dss_device struct to receive the
desired pixel size of the panel. This makes the RFBI interface driver dependent
on the omap_dss_device struct.

Make the RFBI driver data maintain it's own pixel format field. A panel driver
is expected to call omapdss_rfbi_set_pixel_size() to configure the pixel format
before enabling the interface or calling omap_rfbi_configure().

Signed-off-by: Archit Taneja <archit@ti.com>
2012-08-16 18:00:54 +05:30
Archit Taneja 02c3960b1e OMAPDSS: DSI: Maintain copy of pixel format in driver data
The DSI driver currently relies on the omap_dss_device struct to receive the
desired pixel format of the panel. This makes the DSI interface driver dependent
on the omap_dss_device struct.

Make the DSI driver data maintain it's own pixel format field. The panel driver
is expected to call omapdss_dsi_set_pixel_format() to configure the pixel format
before the interface is enabled.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-08-16 18:00:47 +05:30
Archit Taneja 6ff9dd5a6f OMAPDSS: RFBI: Add function to set panel size
RFBI drivers requires configuration of the update area. Since we don't support
partial updates, the size to be configures is the panel size itself.

Add a timings field in RFBI's driver data. Apart from x_res and y_res, all the
other fields are configured to an initial value when RFBI is enabled. A panel
driver is expected to call omapdss_rfbi_set_size() configure the size of the
panel.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-08-15 15:53:09 +05:30
Archit Taneja 43eab86167 OMAPDSS: RFBI: Remove partial update support
Partial update suppport was removed from DISPC and DSI sometime back. The RFBI
driver still tries to support partial update without the underlying support in
DISPC.

Remove partial update support from RFBI, only support updates which span acros
the whole panel size. This also helps in DSI and RFBI having similar update
ops.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-08-15 15:53:08 +05:30
Archit Taneja a5abf4721b OMAPDSS: VENC: Maintain our own timings field in driver data
The VENC driver currently relies on the timings in omap_dss_device struct to
configure the DISPC and VENC blocks accordingly. This makes the VENC interface
driver dependent on the omap_dss_device struct.

Make the VENC driver data maintain it's own timings field. The panel driver is
expected to call omapdss_venc_set_timings() to set these timings before the
panel is enabled. Call omapdss_venc_set_timings() before enabling
venc output, this is done to atleast have the venc output configured to the
panel's default timings if the DSS user didn't explicitly call the venc panel
driver's set_timings op.

Make the VENC panel driver configure the new timings is the omap_dss_device
struct(dssdev->panel.timings). The VENC driver is responsible for maintaining
only it's own copy of timings.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-08-15 15:50:50 +05:30
Archit Taneja 156fd99e92 OMAPDSS: VENC: Split VENC into interface and panel driver
The current venc.c driver contains both the interface and panel driver code.
This makes the driver hard to read, and difficult to understand the work split
between the interface and panel driver and the how the locking works.

This also makes it easier to clearly define the VENC interface ops called by the
panel driver.

Split venc.c into venc.c and venc_panel.c representing the interface and panel
driver respectively. This split is done along the lines of the HDMI interface
and panel drivers.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-08-15 15:49:23 +05:30
Archit Taneja 9b4a5716ef OMAPDSS: SDI: Maintain our own timings field in driver data
The SDI driver currently relies on the timings in omap_dss_device struct to
configure the DISPC accordingly. This makes the SDI interface driver dependent
on the omap_dss_device struct.

Make the SDI driver data maintain it's own timings field. The panel driver is
expected to call omapdss_sdi_set_timings() to set these timings before the panel
is enabled.

Make the SDI panel driver configure the new timings is the omap_dss_device
struct(dssdev->panel.timings). The SDI driver is responsible for maintaining
only it's own copy of timings.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-08-15 15:48:45 +05:30
Archit Taneja c7833f7bc0 OMAPDSS: SDI: Create a function to set timings
Create function omapdss_sdi_set_timings(). Configuring new timings is done the
same way as before, SDI is disabled, and re-enabled with the new timings in
dssdev. This just moves the code from the panel drivers to the SDI driver.

The panel drivers shouldn't be aware of how SDI manages to configure a new set
of timings. This should be taken care of by the SDI driver itself.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-08-15 15:48:45 +05:30
Archit Taneja ed1aa9003b OMAPDSS: HDMI: Add locking for hdmi interface set timing functions
The hdmi interface driver exposes functions to the hdmi panel driver to
configure the interface timings maintained by the hdmi driver.

These timings(stored in hdmi.ip_data.cfg) should be protected by the hdmi lock
to ensure they are called sequentially, this is similar to how hdmi enable and
disable functions need locking.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-08-15 15:48:23 +05:30
Archit Taneja 7849398fa2 OMAPDSS: HDMI: Use our own omap_video_timings field when setting interface timings
The hdmi driver currently updates only the 'code' member of hdmi_config when
the op omapdss_hdmi_display_set_timing() is called by the hdmi panel driver.
The 'timing' field of hdmi_config is updated only when hdmi_power_on is called.
It makes more sense to configure the whole hdmi_config field in the set_timing
op called by the panel driver. This way, we don't need to call both functions
to ensure that our hdmi_config is configured correctly. Also, we don't need to
calculate hdmi_config during hdmi_power_on, or rely on the omap_video_timings
in the panel's omap_dss_device struct.

The default timings of the hdmi panel are represented in a cleaner form. Since
the hdmi output is now configured by it's own copy of timings (in
hdmi.ip_data.cfg), the panel driver needs to set it to a valid value before
enabling hdmi output. We now call omapdss_hdmi_set_timing() before enabling
hdmi output, this is done to atleast have the hdmi output configured to the
panel's default timings if the DSS user didn't call panel driver's set_timings()
op explicitly.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-08-15 15:42:43 +05:30
Archit Taneja 55cd63acf6 OMAPDSS: DSI: Update manager timings on a manual update
During a command mode update using DISPC video port, we may need to swap the
connected overlay manager's width and height when 90 or 270 degree rotation is
done via the panel by changing it's address mode.

Call dss_mgr_set_timings() in update_screen_dispc() before starting the manager
update. The new manager size is updated in the 'timings' field of DSI driver's
private data via omapdss_dsi_set_size(). A panel driver is expected to call this
when performing rotation.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-08-13 15:44:40 +05:30
Archit Taneja e352574db5 OMAPDSS: DSI: Add function to set panel size for command mode panels
DSI command mode panels don't need to configure a full set of timings to
configure DSI, they only require the width and the height of the panel in
pixels.

Use omapdss_dsi_set_size for command mode panels, omapdss_dsi_set_timings is
meant for video mode panels. When performing rotation via chaning the address
mode of the panel, we would need to swap width and height when doing 90 or 270
rotation. Make sure that omapdss_dsi_set_size() makes the new width and height
visible to DSI.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-08-13 15:44:39 +05:30
Archit Taneja e67458a831 OMAPDSS: DSI: Maintain own copy of timings in driver data
The DSI driver currently relies on the timings in omap_dss_device struct to
configure the DISPC and DSI blocks accordingly. This makes the DSI interface
driver dependent on the omap_dss_device struct.

Make the DSI driver data maintain it's own timings field. A DSI video mode panel
driver is expected to call omapdss_dsi_set_timings() to set these timings before
the panel is enabled.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-08-13 15:44:39 +05:30
Archit Taneja bdcae3cc39 OMAPDSS: DPI displays: Take care of panel timings in the driver itself
The timings maintained in omap_dss_device(dssdev->panel.timings) should be
maintained by the panel driver itself. It's the panel drivers responsibility
to update it if a new set of timings is to be configured. The DPI interface
driver shouldn't be responsible of updating the panel timings, it's responsible
of maintianing it's own copy of timings.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-08-13 15:44:39 +05:30
Archit Taneja c499144c3b OMAPDSS: DPI: Maintain our own timings field in driver data
The DPI driver currently relies on the timings in omap_dss_device struct to
configure the DISPC accordingly. This makes the DPI interface driver dependent
on the omap_dss_device struct.

Make the DPI driver data maintain it's own timings field. The panel driver is
expected to call dpi_set_timings()(renamed to omapdss_dpi_set_timings) to set
these timings before the panel is enabled.

In the set_timings() op, we still ensure that the omap_dss_device timings
(dssdev->panel.timings) are configured. This will later be configured only by
the DPI panel drivers.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-08-13 15:44:39 +05:30
Archit Taneja e19d659bbf OMAPDSS: Displays: Add locking in generic DPI panel driver
The generic DPI panel driver doesn't currently have locking to ensure that
the display states and the driver data is maintained correctly. Add mutex
locking to take care of this. Add a new get_timings driver op to override the
default get_timings op. The new driver op contains locking to ensure the correct
panel timings are seen when a DSS2 user calls device->driver->get_timings.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-08-13 15:44:39 +05:30
Archit Taneja c8a5e4e86d OMAPDSS: DPI: Add locking for DPI interface
The DPI interface driver currently relies on the panel driver to ensure calls
like omapdss_dpi_display_enable() and omapdss_dpi_display_disable() are executed
sequentially. Also, currently, there is no way to protect the DPI driver data.

All DPI panel drivers don't ensure this, and in general, a DPI panel driver
should use it's lock to that ensure it's own driver data and omap_dss_device
states are taken care of, and not worry about the DPI interface.

Add mutex locking in the DPI enable/disable/set_timings ops.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-08-13 15:44:39 +05:30
Archit Taneja 27dfddc7fe OMAPDSS: APPLY: Constify timings argument in dss_mgr_set_timings
The function dss_mgr_set_timings is supposed to apply timings passed by an
interface driver. It is not supposed to change the timings. Add const qualifier
to the omap_video_timings pointer argument in dss_mgr_set_timings().

Signed-off-by: Archit Taneja <archit@ti.com>
2012-08-13 15:44:39 +05:30
Grazvydas Ignotas a2496dc942 OMAPFB: fix framebuffer console colors
omapfb does not currently set pseudo palette correctly for color depths
above 16bpp, making red text invisible, command like
  echo -e '\e[0;31mRED' > /dev/tty1
will display nothing on framebuffer console in 24bpp mode.
This is because temporary variable is declared incorrectly, fix it.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-08-10 15:48:40 +03:00
Ricardo Neri 8aa2eed134 OMAPDSS: DISPC: Improvements to DIGIT sync signal selection
DSS code wrongly assumes that VENC is always available as source for the external
sync signal for the display controller DIGIT channel. One cannot blindly write/read
the value of DSS_CONTROL[15] as in certain processors (e.g., OMAP5) this operation
may not be valid. If the the sync source is not read correctly, the callers of
dss_get_hdmi_venc_clk_source might make wrong assumptions about, for instance,
video timings.

Logic is added to correctly get the sync signal based on the available displays
in the DIGIT channel. The source is set only if both VENC and HDMI are supported.

Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-08-10 15:48:35 +03:00
Jassi Brar d7ad718d35 OMAPDSS: DISPC: Use msleep instead of blocking mdelay
We have no reason to block in the error handler workqueue, so use msleep.

Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-08-10 15:48:28 +03:00
Ricardo Neri d3b4aa519c OMAPDSS: HDMI: Disable PLL properly in case of error at power_on
Small patch to disable the PLL appropriately before runtime_put in case
an error occurs while enabling the PHY.

Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-08-10 15:48:24 +03:00
Leela Krishna Amudala 5a213a55c6 include/video: move fimd register headers from platform to include/video
This patch moves the contents from regs-fb-v4.h and regs-fb.h to
include/video/samsung_fimd.h. Also updates the header inclusion in
machine files and driver files accordingly.

Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-08-08 09:44:49 +09:00
Linus Torvalds d4fdc32517 fbdev updates for 3.6
It includes:
 - large updates for OMAP
   - support for LCD3 overlay manager (omap5)
   - omapdss output cleanup
   - removal of passive matrix LCD support as there are no drivers for
     such panels for DSS or DSS2 and nobody complained (cleanup)
 - large updates for SH Mobile
   - overlay support
   - separating MERAM (cache) from framebuffer driver
 - some updates for Exynos and da8xx-fb
 - various other small patches
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Merge tag 'fbdev-updates-for-3.6' of git://github.com/schandinat/linux-2.6

Pull fbdev updates from Florian Tobias Schandinat:
 - large updates for OMAP
   - support for LCD3 overlay manager (omap5)
   - omapdss output cleanup
   - removal of passive matrix LCD support as there are no drivers for
     such panels for DSS or DSS2 and nobody complained (cleanup)
 - large updates for SH Mobile
   - overlay support
   - separating MERAM (cache) from framebuffer driver
 - some updates for Exynos and da8xx-fb
 - various other small patches

* tag 'fbdev-updates-for-3.6' of git://github.com/schandinat/linux-2.6: (78 commits)
  da8xx-fb: fix compile issue due to missing include
  fbdev: Make pixel_to_pat() failure mode more friendly
  da8xx-fb: do not turn ON LCD backlight unless LCDC is enabled
  fbdev: sh_mobile_lcdc: Fix vertical panning step
  video: exynos mipi dsi: Fix mipi dsi regulators handling issue
  video: da8xx-fb: do clock reset of revision 2 LCDC before enabling
  arm: da850: configure LCDC fifo threshold
  video: da8xx-fb: configure FIFO threshold to reduce underflow errors
  video: da8xx-fb: fix flicker due to 1 frame delay in updated frame
  video: da8xx-fb rev2: fix disabling of palette completion interrupt
  da8xx-fb: add missing FB_BLANK operations
  video: exynos_dp: use usleep_range instead of delay
  video: exynos_dp: check the only INTERLANE_ALIGN_DONE bit during Link Training
  fb: epson1355fb: Fix section mismatch
  video: exynos_dp: fix wrong DPCD address during Link Training
  video/smscufx: fix line counting in fb_write
  aty128fb: Fix coding style issues
  fbdev: sh_mobile_lcdc: Fix pan offset computation in YUV mode
  fbdev: sh_mobile_lcdc: Fix overlay registers update during pan operation
  fbdev: sh_mobile_lcdc: Support horizontal panning
  ...
2012-08-01 10:45:12 -07:00
Linus Torvalds a0e881b7c1 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull second vfs pile from Al Viro:
 "The stuff in there: fsfreeze deadlock fixes by Jan (essentially, the
  deadlock reproduced by xfstests 068), symlink and hardlink restriction
  patches, plus assorted cleanups and fixes.

  Note that another fsfreeze deadlock (emergency thaw one) is *not*
  dealt with - the series by Fernando conflicts a lot with Jan's, breaks
  userland ABI (FIFREEZE semantics gets changed) and trades the deadlock
  for massive vfsmount leak; this is going to be handled next cycle.
  There probably will be another pull request, but that stuff won't be
  in it."

Fix up trivial conflicts due to unrelated changes next to each other in
drivers/{staging/gdm72xx/usb_boot.c, usb/gadget/storage_common.c}

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (54 commits)
  delousing target_core_file a bit
  Documentation: Correct s_umount state for freeze_fs/unfreeze_fs
  fs: Remove old freezing mechanism
  ext2: Implement freezing
  btrfs: Convert to new freezing mechanism
  nilfs2: Convert to new freezing mechanism
  ntfs: Convert to new freezing mechanism
  fuse: Convert to new freezing mechanism
  gfs2: Convert to new freezing mechanism
  ocfs2: Convert to new freezing mechanism
  xfs: Convert to new freezing code
  ext4: Convert to new freezing mechanism
  fs: Protect write paths by sb_start_write - sb_end_write
  fs: Skip atime update on frozen filesystem
  fs: Add freezing handling to mnt_want_write() / mnt_drop_write()
  fs: Improve filesystem freezing handling
  switch the protection of percpu_counter list to spinlock
  nfsd: Push mnt_want_write() outside of i_mutex
  btrfs: Push mnt_want_write() outside of i_mutex
  fat: Push mnt_want_write() outside of i_mutex
  ...
2012-08-01 10:26:23 -07:00
Linus Torvalds 27c1ee3f92 Merge branch 'akpm' (Andrew's patch-bomb)
Merge Andrew's first set of patches:
 "Non-MM patches:

   - lots of misc bits

   - tree-wide have_clk() cleanups

   - quite a lot of printk tweaks.  I draw your attention to "printk:
     convert the format for KERN_<LEVEL> to a 2 byte pattern" which
     looks a bit scary.  But afaict it's solid.

   - backlight updates

   - lib/ feature work (notably the addition and use of memweight())

   - checkpatch updates

   - rtc updates

   - nilfs updates

   - fatfs updates (partial, still waiting for acks)

   - kdump, proc, fork, IPC, sysctl, taskstats, pps, etc

   - new fault-injection feature work"

* Merge emailed patches from Andrew Morton <akpm@linux-foundation.org>: (128 commits)
  drivers/misc/lkdtm.c: fix missing allocation failure check
  lib/scatterlist: do not re-write gfp_flags in __sg_alloc_table()
  fault-injection: add tool to run command with failslab or fail_page_alloc
  fault-injection: add selftests for cpu and memory hotplug
  powerpc: pSeries reconfig notifier error injection module
  memory: memory notifier error injection module
  PM: PM notifier error injection module
  cpu: rewrite cpu-notifier-error-inject module
  fault-injection: notifier error injection
  c/r: fcntl: add F_GETOWNER_UIDS option
  resource: make sure requested range is included in the root range
  include/linux/aio.h: cpp->C conversions
  fs: cachefiles: add support for large files in filesystem caching
  pps: return PTR_ERR on error in device_create
  taskstats: check nla_reserve() return
  sysctl: suppress kmemleak messages
  ipc: use Kconfig options for __ARCH_WANT_[COMPAT_]IPC_PARSE_VERSION
  ipc: compat: use signed size_t types for msgsnd and msgrcv
  ipc: allow compat IPC version field parsing if !ARCH_WANT_OLD_COMPAT_IPC
  ipc: add COMPAT_SHMLBA support
  ...
2012-07-30 17:25:34 -07:00
Kim, Milo f7f9505677 backlight: move lp855x header into platform_data directory
The lp855x header is used only in the platform side, so it can be moved
into platform_data directory

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Bryan Wu <bryan.wu@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-30 17:25:15 -07:00
Kim, Milo a1fcb2e318 backlight: move register definitions from header to source
ROM boundary definitions do not need to be exported because these are
used only internally in the lp855x driver.

And few code cosmetic changes

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Bryan Wu <bryan.wu@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-30 17:25:15 -07:00
Jingoo Han 62a5c075ba backlight: l4f00242t03: export and use devm_gpio_request_one()
The devm_ functions allocate memory that is released when a driver
detaches.  This patch uses devm_gpio_request_one() for these functions.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Alberto Panizzo <alberto@amarulasolutions.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-30 17:25:15 -07:00
Jingoo Han 4405d5d9dd backlight: corgi_lcd: use devm_gpio_request()
The devm_ functions allocate memory that is released when a driver
detaches.  This patch uses devm_gpio_request() for these functions.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-30 17:25:15 -07:00
Jingoo Han 04e961fb1d backlight: lms283gf05: use devm_gpio_request()
The devm_ functions allocate memory that is released when a driver
detaches.  This patch uses devm_gpio_request() for these functions.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-30 17:25:15 -07:00
Jingoo Han f5b71941a5 backlight: tosa_bl: use devm_gpio_request()
The devm_ functions allocate memory that is released when a driver
detaches.  This patch uses devm_gpio_request() for these functions.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Dmitry Baryshkov <dbaryshkov@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-30 17:25:15 -07:00
Jingoo Han 402ff9a264 backlight: tosa_lcd: use devm_gpio_request()
The devm_ functions allocate memory that is released when a driver
detaches.  This patch uses devm_gpio_request() for these functions.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Dmitry Baryshkov <dbaryshkov@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-30 17:25:15 -07:00
Jingoo Han f673934c61 backlight: ot200_bl: use devm_gpio_request()
The devm_ functions allocate memory that is released when a driver
detaches.  This patch uses devm_gpio_request() for these functions.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-30 17:25:15 -07:00
Jingoo Han 5f9dd5c9fd backlight: atmel-pwm-bl: use devm_gpio_request()
The devm_ functions allocate memory that is released when a driver
detaches.  This patch uses devm_gpio_request() for these functions.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-30 17:25:15 -07:00
Jingoo Han b4a74615a4 drivers/video/backlight/lm3533_bl.c: use devm_ functions
The devm_ functions allocate memory that is released when a driver
detaches.  This patch uses devm_kzalloc of these functions.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Johan Hovold <jhovold@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-30 17:25:15 -07:00
Jingoo Han f1b60d46b6 drivers/video/backlight/ot200_bl.c: use devm_ functions
The devm_ functions allocate memory that is released when a driver
detaches. This patch uses devm_kzalloc of these functions

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Christian Gmeiner <christian.gmeiner@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-30 17:25:15 -07:00
Jingoo Han a4be29ac6d drivers/video/backlight/atmel-pwm-bl.c: use devm_ functions
The devm_ functions allocate memory that is released when a driver
detaches.  This patch uses devm_kzalloc of these functions.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-30 17:25:14 -07:00
Jan Kara 183fef91cd fb_defio: Push file_update_time() into fb_deferred_io_mkwrite()
CC: Jaya Kumar <jayalk@intworks.biz>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-07-31 01:02:44 +04:00
Linus Torvalds 9ec97169e7 Merge branch 'for-3.6' of git://gitorious.org/linux-pwm/linux-pwm
Pull PWM subsystem from Thierry Reding:
 "The new PWM subsystem aims at collecting all implementations of the
  legacy PWM API and to eventually replace it completely.

  The subsystem has been in development for over half a year now and
  many drivers have already been converted.  It has been in linux-next
  for a couple of weeks and there have been no major issues so I think
  it is ready for inclusion in your tree."

Arnd Bergmann <arnd@arndb.de>:
 "Very much Ack on the new subsystem.  It uses the interface
  declarations as the previously separate pwm drivers, so nothing
  changes for now in the drivers using it, although it enables us to
  change those more easily in the future if we want to.

  This work is also one of the missing pieces that are required to
  eventually build ARM kernels for multiple platforms, which is
  currently prohibited (amongs other things) by the fact that you cannot
  have more than one driver exporting the pwm functions."

Tested-and-acked-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Philip, Avinash <avinashphilip@ti.com> # TI's AM33xx platforms
Acked-By: Alexandre Pereira da Silva <aletes.xgr@gmail.com> # LPC32XX
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Sachin Kamat <sachin.kamat@linaro.org>

Fix up trivial conflicts with other cleanups and DT updates.

* 'for-3.6' of git://gitorious.org/linux-pwm/linux-pwm: (36 commits)
  pwm: pwm-tiehrpwm: PWM driver support for EHRPWM
  pwm: pwm-tiecap: PWM driver support for ECAP APWM
  pwm: fix used-uninitialized warning in pwm_get()
  pwm: add lpc32xx PWM support
  pwm_backlight: pass correct brightness to callback
  pwm: Use pr_* functions in pwm-samsung.c file
  pwm: Convert pwm-samsung to use devm_* APIs
  pwm: Convert pwm-tegra to use devm_clk_get()
  pwm: pwm-mxs: Return proper error if pwmchip_remove() fails
  pwm: pwm-bfin: Return proper error if pwmchip_remove() fails
  pwm: pxa: Propagate pwmchip_remove() error
  pwm: Convert pwm-pxa to use devm_* APIs
  pwm: Convert pwm-vt8500 to use devm_* APIs
  pwm: Convert pwm-imx to use devm_* APIs
  pwm: Conflict with legacy PWM API
  pwm: pwm-mxs: add pinctrl support
  pwm: pwm-mxs: use devm_* managed functions
  pwm: pwm-mxs: use global reset function stmp_reset_block
  pwm: pwm-mxs: encode soc name in compatible string
  pwm: Take over maintainership of the PWM subsystem
  ...
2012-07-30 09:22:37 -07:00
Jiri Kosina e1c9ac420e Revert "backlight: fix memory leak on obscure error path"
This reverts commit 9ea3c49896.

'data' is being allocated by devm_kzalloc(), is it's actually
wrong to free() it in the error path, as it will be destroyed
properly later.

Reported-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-07-30 10:40:28 +02:00
Florian Tobias Schandinat a0239073fd da8xx-fb: fix compile issue due to missing include
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-07-29 16:47:40 +00:00
Benjamin Herrenschmidt 3f6a558046 fbdev: Make pixel_to_pat() failure mode more friendly
If we accidentally pass an incorrect bpp value to pixel_to_pat(),
it panics. This is pretty useless, as we generally have the various
console locks held at that point, so nothing will be displayed,
and there is no reason to make this a fatal event.

Let's WARN instead.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-07-29 12:25:06 +00:00
Manjunathappa, Prakash f7c848b6ef da8xx-fb: do not turn ON LCD backlight unless LCDC is enabled
LCD blink is observed during suspend/resume and blank/unblank
operations as backlight is ON during LCDC disable and enable.
So make sure to turn OFF backlight before disabling and turn
it ON after enabling.

Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-07-29 12:24:14 +00:00
Laurent Pinchart ac33a207b1 fbdev: sh_mobile_lcdc: Fix vertical panning step
Commit 15dede882e added support for
horizontal panning but accidentally computes the Y pan step value
incorrectly for NV12/21 and NV16/61 formats. Fix this.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-07-29 01:17:07 +00:00
Donghwa Lee 91d1cfa877 video: exynos mipi dsi: Fix mipi dsi regulators handling issue
When FB_BLANK_UNLANK event occured, exynos mipi dsi regulators have to turn on.

Signed-off-by: Donghwa Lee <dh09.lee@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-07-29 01:16:16 +00:00
Manjunathappa, Prakash 92b4e45065 video: da8xx-fb: do clock reset of revision 2 LCDC before enabling
As in specification software reset should be applied for several
cycles before bringing it out of reset. Without this patch
particularly during suspend and resume clock reset is not guaranteed
to happen.

Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-07-29 01:15:35 +00:00
Manjunathappa, Prakash fb8fa94319 video: da8xx-fb: configure FIFO threshold to reduce underflow errors
Patch works around the below silicon errata:
During LCDC initialization, there is the potential for a FIFO
underflow condition to occur. A FIFO underflow condition
occurs when the input FIFO is completely empty and the LCDC
raster controller logic that drives data to the output pins
attempts to fetch data from the FIFO. When a FIFO underflow
condition occurs, incorrect data will be driven out on the
LCDC data pins.

Software should poll the FUF bit field in the LCD_STAT register
to check if an error condition has occurred or service the
interrupt if FUF_EN is enabled when FUF occurs. If the FUF bit
field has been set to 1, this will indicate an underflow
condition has occurred and then the software should execute a
reset of the LCDC via the LPSC.

This problem may occur if the LCDC FIFO threshold size
(LCDDMA_CTRL[TH_FIFO_READY]) is left at its default value after
reset. Increasing the FIFO threshold size will reduce or
eliminate underflows. Setting the threshold size to 256 double
words or larger is recommended.

Above issue is described in section 2.1.3 of silicon errata
http://www.ti.com/lit/er/sprz313e/sprz313e.pdf

Signed-off-by: Rajashekhara, Sudhakar <sudhakar.raj@ti.com>
Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-07-29 01:11:09 +00:00
Manjunathappa, Prakash deb95c6c95 video: da8xx-fb: fix flicker due to 1 frame delay in updated frame
Flicker/tearing effect is observed with current FB driver.
Issue is because of 2 active DMA channels ping ponging among them
along with usage of 2 DDR ping pong buffers in driver. Application
unaware of active DMA channel keeps updating frame being displayed,
this leads to tearing effect.
Below steps describes the issue:
1)Initially assume both buffers FB0 and FB1 are programmed for buffer-0.
2)On EOF0: Program FB0 for buffer-1, indicate(wake up) application
 to fill up buffer-0. As FB1 is active and continues to DMA buffer-0
(which is being filled), leading to tearing/flickering issue.
3)On EOF1: Program FB1 for buffer-0, indicate(wake up) application to
 fill up buffer-1. As FB0 is active and continues to DMA buffer-1(which
 is being filled), leading to tearing/flickering issue.
4)On EOF0: Program FB0 for buffer-1, indicate(wake up) application to
fill up buffer-0. As FB1 is active and continues to DMA buffer-0(which is
being filled), leading to tearing/flickering issue.
...
Above steps depict that issue is because of 1 frame delay in frame
panned by application.

Patch fixes the issue by keeping track free DMA channel and configures
it in drivers PAN callback so that panned frame from application gets
displayed in next frame period.

Wiki below describes the issue in detail and it also has link to
application with which issue can be reproduced.
http://processors.wiki.ti.com/index.php/DA8xx_LCDC_Linux_FB_FAQs

Signed-off-by: Nellutla, Aditya <aditya.n@ti.com>
Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-07-29 01:09:27 +00:00
Manjunathappa, Prakash 8a81dccd39 video: da8xx-fb rev2: fix disabling of palette completion interrupt
Writing '1' to particular bit of IRQENABLE_CLEAR register disables the
corresponding interrupt on revision 2 LCDC. This register was wrongly
configured to disable all previous enabled interrupts instead of
disabling only palette completion interrupt. Patch fixes it by clearing
only palette completion interrupt bit.

Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-07-29 01:00:31 +00:00
Yegor Yefremov 99a647d1f1 da8xx-fb: add missing FB_BLANK operations
add FB_BLANK_NORMAL, FB_BLANK_VSYNC_SUSPEND and FB_BLANK_HSYNC_SUSPEND
modes (copy drivers/video/omap2/omapfb/omapfb-main.c implementation).
Otherwise X-server will complain about invalid parameter.

Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-07-29 00:59:31 +00:00
Tony Breeds e5ae3cdfd5 radeonfb: Add quirk for the graphics adapter in some JSxx
These devices are set to 640x480 by firmware, switch them to 800x600@60
so that the graphical installer can run on remote console.

Reported by IBM during SLES10 SP2 beta testing:

https://bugzilla.novell.com/show_bug.cgi?id=461002
LTC50817

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-07-27 11:42:33 +10:00
Florian Tobias Schandinat d9053b4879 Merge branch 'for-florian' of git://gitorious.org/linux-omap-dss2/linux into fbdev-next
Conflicts:
	drivers/video/omap2/dss/core.c
	drivers/video/omap2/dss/dispc.c
2012-07-25 08:55:46 +00:00
Florian Tobias Schandinat 4c5b1fb8a1 Merge branch 'for-next' of git://linuxtv.org/pinchartl/fbdev into fbdev-next 2012-07-25 08:46:21 +00:00
Jingoo Han a2c81bc12c video: exynos_dp: use usleep_range instead of delay
This patch replaces udelay and mdelay with usleep_range to remove
the busy loop waiting.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-07-24 20:56:18 +00:00
Jingoo Han 1f61ce508a video: exynos_dp: check the only INTERLANE_ALIGN_DONE bit during Link Training
The only INTERLANE_ALIGN_DONE bit should be checked for channel equalization
during Link Training. Previously, the other bits such as LINK_STATUS_UPDATED
were checked, and channel equalization procedure was repeated unnecessarily.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-07-24 20:55:16 +00:00
Alexander Shiyan 559dc9d9fe fb: epson1355fb: Fix section mismatch
This patch fixes "section mismatch" warning in the epson1355fb driver.

WARNING: vmlinux.o(.devinit.text+0x184): Section mismatch in reference from the function epson1355fb_probe() to the function .init.text:fetch_hw_state()
The function __devinit epson1355fb_probe() references
a function __init fetch_hw_state().
If fetch_hw_state is only used by epson1355fb_probe then
annotate fetch_hw_state with a matching annotation.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Acked-by: Christopher Hoover <ch@murgatroid.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-07-24 20:54:35 +00:00
Jingoo Han 123267aae3 video: exynos_dp: fix wrong DPCD address during Link Training
Wrong DPCD addresses were used for clock recovery during Link Training.
The training pattern should be set by TRAINING_PATTERN_SET (0x102), while
voltage swing and pre-emphasis should be set by TRAINING_LANE0_SET (0x103).

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-07-24 20:54:03 +00:00
Alexander Holler 2fe2d9f47c video/smscufx: fix line counting in fb_write
Line 0 and 1 were both written to line 0 (on the display) and all subsequent
lines had an offset of -1. The result was that the last line on the display
was never overwritten by writes to /dev/fbN.

The origin of this bug seems to have been udlfb.

Signed-off-by: Alexander Holler <holler@ahsoftware.de>
Cc: stable@vger.kernel.org
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-07-24 20:52:37 +00:00
Emil Goode 659f675e4b aty128fb: Fix coding style issues
This patch cleans up some coding style issues.

-Some lines are indented with 4 spaces, most of this code
 is not used but it should be correctly indented anyway.

-I also fixed some long lines exceeding the 80 char limit.

Signed-off-by: Emil Goode <emilgoode@gmail.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-07-24 20:47:06 +00:00
Linus Torvalds d14b7a419a Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree from Jiri Kosina:
 "Trivial updates all over the place as usual."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (29 commits)
  Fix typo in include/linux/clk.h .
  pci: hotplug: Fix typo in pci
  iommu: Fix typo in iommu
  video: Fix typo in drivers/video
  Documentation: Add newline at end-of-file to files lacking one
  arm,unicore32: Remove obsolete "select MISC_DEVICES"
  module.c: spelling s/postition/position/g
  cpufreq: Fix typo in cpufreq driver
  trivial: typo in comment in mksysmap
  mach-omap2: Fix typo in debug message and comment
  scsi: aha152x: Fix sparse warning and make printing pointer address more portable.
  Change email address for Steve Glendinning
  Btrfs: fix typo in convert_extent_bit
  via: Remove bogus if check
  netprio_cgroup.c: fix comment typo
  backlight: fix memory leak on obscure error path
  Documentation: asus-laptop.txt references an obsolete Kconfig item
  Documentation: ManagementStyle: fixed typo
  mm/vmscan: cleanup comment error in balance_pgdat
  mm: cleanup on the comments of zone_reclaim_stat
  ...
2012-07-24 13:34:56 -07:00
Masanari Iida ff0c26424c video: Fix typo in drivers/video
Correct spelling typo in debug messages and comments
within drivers/video.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-07-24 12:58:15 +02:00
Linus Torvalds 4f2d658b2f arm-soc: device tree description updates
This branch contains two kinds of updates: Some platforms in the process
 of getting converted to device tree based booting, and the platform
 specific patches necessary for that are included here. Other platforms
 are already converted, so we just need to update the actual device
 tree source files and the binding documents to add support for new board
 and new drivers.
 In the future we will probably separate those into two branches, and
 in the long run, the plan is to move the device tree source files out
 of the kernel repository, but that has to wait until we have completed
 a much larger portion of the binding documents.
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Merge tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull arm-soc device tree description updates from Arnd Bergmann:
 "This branch contains two kinds of updates: Some platforms in the
  process of getting converted to device tree based booting, and the
  platform specific patches necessary for that are included here.

  Other platforms are already converted, so we just need to update the
  actual device tree source files and the binding documents to add
  support for new board and new drivers.

  In the future we will probably separate those into two branches, and
  in the long run, the plan is to move the device tree source files out
  of the kernel repository, but that has to wait until we have completed
  a much larger portion of the binding documents."

Fix up trivial conflicts in arch/arm/mach-imx/clk-imx6q.c due to newly
added clkdev registers next to a few removed unnecessary ones.

* tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (119 commits)
  ARM: LPC32xx: Add PWM to base dts file
  ARM: EXYNOS: mark the DMA channel binding for SPI as preliminary
  ARM: dts: Add nodes for spi controllers for SAMSUNG EXYNOS5 platforms
  ARM: EXYNOS: Enable platform support for SPI controllers for EXYNOS5
  ARM: EXYNOS: Add spi clock support for EXYNOS5
  ARM: dts: Add nodes for spi controllers for SAMSUNG EXYNOS4 platforms
  ARM: EXYNOS: Enable platform support for SPI controllers for EXYNOX4
  ARM: EXYNOS: Fix the incorrect hierarchy of spi controller bus clock
  ARM: ux500: Remove PMU platform registration when booting with DT
  ARM: ux500: Remove temporary snowball_of_platform_devs enablement structure
  ARM: ux500: Ensure vendor specific properties have the vendor's identifier
  pinctrl: pinctrl-nomadik: Append sleepmode property with vendor specific prefixes
  ARM: ux500: Move rtc-pl031 registration to Device Tree when enabled
  ARM: ux500: Enable the AB8500 RTC for all DT:ed DB8500 based devices
  ARM: ux500: Correctly reference IRQs supplied by the AB8500 from Device Tree
  ARM: ux500: Apply ab8500-debug node do the db8500 DT structure
  ARM: ux500: Add a ab8500-usb Device Tree node for db8500 based devices
  ARM: ux500: Add db8500 Device Tree node for misc/ab8500-pwm
  ARM: ux500: Add db8500 Device Tree node for ab8500-sysctrl
  ARM: ux500: Enable LED heartbeat functionality on Snowbal via DT
  ...
2012-07-23 16:17:43 -07:00
Alexandre Courbot 9fb978b12f pwm_backlight: pass correct brightness to callback
pwm_backlight_update_status calls the notify() and notify_after()
callbacks before and after applying the new PWM settings. However, if
brightness levels are used, the brightness value will be changed from
the index into the levels array to the PWM duty cycle length before
being passed to notify_after(), which results in inconsistent behavior.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
2012-07-23 13:24:04 +02:00
Thierry Reding 3e3ed6cdc4 pwm-backlight: Add rudimentary device tree support
This commit adds very basic support for device tree probing. Currently,
only a PWM and a list of distinct brightness levels can be specified.
Enabling or disabling backlight power via GPIOs is not yet supported.

Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
2012-07-23 13:23:52 +02:00
Laurent Pinchart a4aa25f6e7 fbdev: sh_mobile_lcdc: Fix pan offset computation in YUV mode
The chroma plane offset in memory is equal to the luma plane maximum
size. Fix offset computations.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2012-07-19 12:15:26 +02:00
Laurent Pinchart 8be7c66995 fbdev: sh_mobile_lcdc: Fix overlay registers update during pan operation
Updating overlay registers require switching to overlay update mode.
This was correctly done when configuring the overlay format and size,
but not when updating the base address registers during pan operation.
Fix it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2012-07-19 12:15:26 +02:00
Laurent Pinchart 15dede882e fbdev: sh_mobile_lcdc: Support horizontal panning
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2012-07-19 12:15:24 +02:00
Laurent Pinchart bd5f2c6911 fbdev: sh_mobile_lcdc: Use channel configuration to initialize fb device
Copy the x and y virtual resolutions from the channel information
instead of recomputing them.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2012-07-19 02:05:23 +02:00
Laurent Pinchart 16ca21c9a9 fbdev: sh_mobile_lcdc: Fix line pitch computation
Line pitch depends on the virtual horizontal resolution, compute it
accordingly.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2012-07-19 02:05:23 +02:00
Laurent Pinchart 0c75c4e073 fbdev: sh_mobile_lcdc: Destroy mutex at remove time
Add a missing mutex_destroy() call when the driver is unbound from the
device.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2012-07-19 02:05:22 +02:00
Laurent Pinchart 239921ec1d sh_mobile_meram: Add direct MERAM allocation API
The API can be used to allocate and free MERAM blocks directly, without
going through ICBs.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2012-07-19 02:05:22 +02:00
Laurent Pinchart 6e729b416b sh_mobile_meram: Use direct function calls for the public API
There's no reason to use abstract operation pointers to implement the
MERAM API. Replace them by direct function calls.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2012-07-19 02:05:21 +02:00
Laurent Pinchart 4a23717721 sh_mobile_meram: Rename operations to cache_[alloc|free|update]
The MERAM operations meram_register, meram_unregister and meram_update
handle LCDC cache. In preparation for "raw" MERAM allocation, rename
them to more appropriate names.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2012-07-19 02:05:21 +02:00
Steve Glendinning 90b24cfb42 Change email address for Steve Glendinning
I no longer have a mailbox at smsc.com, and I've had two reports
that that email address now bounces from people trying to
contact me.  This patch updates all references to that invalid
address to one that I can be contacted on more permanently.

This patch also updates the maintainer status to reflect
the fact I'm no longer directly paid to maintain these drivers.

Signed-off-by: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-07-17 16:15:38 +02:00
Linus Torvalds 918227bb1b fbdev fixes for 3.5
- two fixes for OMAPDSS by Tomi Valkeinen
   one to avoid warnings when runtime PM is not enabled
   one workaround to dependancy issues during suspend/resume
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Merge tag 'fbdev-fixes-for-3.5-2' of git://github.com/schandinat/linux-2.6

Pull fbdev fixes from Florian Tobias Schandinat:
 "Two fixes for OMAPDSS by Tomi Valkeinen:
   - one to avoid warnings when runtime PM is not enabled
   - one workaround to dependancy issues during suspend/resume"

* tag 'fbdev-fixes-for-3.5-2' of git://github.com/schandinat/linux-2.6:
  OMAPDSS: fix warnings if CONFIG_PM_RUNTIME=n
  OMAPDSS: Use PM notifiers for system suspend
2012-07-11 16:17:14 -07:00
Alan Cox 39012f6805 via: Remove bogus if check
Reported-by: <dcb314@hotmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Resolves-bug:  https://bugzilla.kernel.org/show_bug.cgi?id=44331
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-07-11 17:37:24 +02:00
Martlin Ettl 9ea3c49896 backlight: fix memory leak on obscure error path
Dredged out of bugzilla

Reported-by: Martlin Ettl <ettl.martin@gmx.de>
Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=15492
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-07-09 16:20:11 +02:00
Ondrej Zary 6fcdbc0c3a s3fb: Add Virge/MX (86C260)
Add support for Virge/MX (86C260) chip. Although this is a laptop chip,
there's an AGP card with this chip too.

Tested with AGP card, will probably not work correctly with laptops.
DDC does not work on this card (even in DOS or Windows).

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-07-08 14:03:50 +00:00
Emil Goode 42eb317f7d grvga: Fix error handling issues
This patch fixes two problems with the error handling in the
grvga_probe function and simplifies it making the code
easier to read.

- If the call to grvga_parse_custom on line 370 fails we use
  the wrong label so that release_mem_region will be called
  without a call to request_mem_region being made.

- If the call to ioremap on line 436 fails we should not try
  to call iounmap in the error handling code.

This patch introduces the following changes:

- Converts request_mem_region into its devm_ equivalent
  which simplifies the otherwise messy clean up code.

- Changes the labels for correct error handling and their
  names to make the code easier to read.

Signed-off-by: Emil Goode <emilgoode@gmail.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-07-08 14:03:17 +00:00
Paul Parsons fb18155925 video: w100fb: Reduce sleep mode battery discharge
In 2006 and 2007 the handhelds.org kernel w100fb driver was patched to
reduce sleep mode battery discharge. Unfortunately those two patches
never migrated to the mainline kernel.

Fortunately the function affected - w100_suspend() - has not changed
since; thus those patches still apply cleanly.

Applying those patches to linux-3.4-rc3 running on an HP iPAQ hx4700
reduces the sleep mode battery discharge from approximately 26 mA to
approximately 11 mA.

This patch combines those two patches into a single unified patch.

Signed-off-by: Paul Parsons <lost.distance@yahoo.com>
Cc: Matt Reimer <mreimer@sdgsystems.com>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-07-08 14:03:02 +00:00
Florian Tobias Schandinat d65c8f312c Merge branch 'fbdev-for-linus' into fbdev-next 2012-07-08 14:00:47 +00:00
Tomi Valkeinen 373b436521 OMAPDSS: fix warnings if CONFIG_PM_RUNTIME=n
If runtime PM is not enabled in the kernel config, pm_runtime_get_sync()
will always return 1 and pm_runtime_put_sync() will always return
-ENOSYS. pm_runtime_get_sync() returning 1 presents no problem to the
driver, but -ENOSYS from pm_runtime_put_sync() causes the driver to
print a warning.

One option would be to ignore errors returned by pm_runtime_put_sync()
totally, as they only say that the call was unable to put the hardware
into suspend mode.

However, I chose to ignore the returned -ENOSYS explicitly, and print a
warning for other errors, as I think we should get notified if the HW
failed to go to suspend properly.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Jassi Brar <jaswinder.singh@linaro.org>
Cc: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-07-08 14:00:27 +00:00
Tomi Valkeinen 736f29cd6b OMAPDSS: Use PM notifiers for system suspend
The current way how omapdss handles system suspend and resume is that
omapdss device (a platform device, which is not part of the device
hierarchy of the DSS HW devices, like DISPC and DSI, or panels.) uses
the suspend and resume callbacks from platform_driver to handle system
suspend. It does this by disabling all enabled panels on suspend, and
resuming the previously disabled panels on resume.

This presents a few problems.

One is that as omapdss device is not related to the panel devices or the
DSS HW devices, there's no ordering in the suspend process. This means
that suspend could be first ran for DSS HW devices and panels, and only
then for omapdss device. Currently this is not a problem, as DSS HW
devices and panels do not handle suspend.

Another, more pressing problem, is that when suspending or resuming, the
runtime PM functions return -EACCES as runtime PM is disabled during
system suspend. This causes the driver to print warnings, and operations
to fail as they think that they failed to bring up the HW.

This patch changes the omapdss suspend handling to use PM notifiers,
which are called before suspend and after resume. This way we have a
normally functioning system when we are suspending and resuming the
panels.

This patch, I believe, creates a problem that somebody could enable or
disable a panel between PM_SUSPEND_PREPARE and the system suspend, and
similarly the other way around in resume. I choose to ignore the problem
for now, as it sounds rather unlikely, and if it happens, it's not
fatal.

In the long run the system suspend handling of omapdss and panels should
be thought out properly. The current approach feels rather hacky.
Perhaps the panel drivers should handle system suspend, or the users of
omapdss (omapfb, omapdrm) should handle system suspend.

Note that after this patch we could probably revert
0eaf9f52e9 (OMAPDSS: use sync versions of
pm_runtime_put). But as I said, this patch may be temporary, so let's
leave the sync version still in place.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reported-by: Jassi Brar <jaswinder.singh@linaro.org>
Tested-by: Jassi Brar <jaswinder.singh@linaro.org>
Tested-by: Joe Woodward <jw@terrafix.co.uk>
Signed-off-by: Archit Taneja <archit@ti.com>
[fts: fixed 2 brace coding style issues]
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-07-08 14:00:26 +00:00
Shawn Guo 73fc610f9a video: mxsfb: add simple device tree probe
Add a simple device tree probe support for mxsfb driver.  Before
a common binding for struct fb_videomode is available, the driver will
keep using struct mxsfb_platform_data.  That said, platform code will
use auxdata to attach mxsfb_platform_data for device tree boot.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-07-03 13:22:37 +08:00
Shawn Guo ce4409b582 video: mxsfb: move mxsfb.h into include/linux
Move mxsfb.h into include/linux, so that mxsfb driver does not have to
include <mach/*> header.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-07-03 13:22:37 +08:00
Archit Taneja 6c6f510afb OMAPDSS: OVERLAY: Clean up replication checking
Replication logic for an overlay depends on the color mode in which it is
configured and the video port width of the manager it is connected to.

video port width now held in dss_lcd_mgr_config in the manager's private
data in APPLY. Use this instead of referring to the omap_dss_device connected to
the manager.

Replication is enabled in the case of TV manager, the video_port_width is set to
a default value of 24 for TV manager.

Make the replication checking an overlay function since it's more of an overlay
characteristic than a display characteristic.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-06-29 16:27:59 +05:30
Archit Taneja c47cdb3088 OMAPDSS: RFBI: Use dss_mgr_enable to enable the overlay manager
The RFBI driver uses a direct DISPC register write to enable the overlay
manager. Replace this with dss_mgr_enable() which checks if the connected
overlay and managers are correctly configured, and configure DSS for
fifomerge.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-06-29 16:27:59 +05:30
Archit Taneja dd88b7a677 OMAPDSS: DISPC: Remove a redundant function
dss_mgr_is_lcd() available in dss.h does the same thing as dispc_mgr_is_lcd()
in dispc.c. Remove the function from dispc.c and replace it with the one in
dss.h.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-06-29 16:27:58 +05:30
Archit Taneja 75bac5d1a2 OMAPDSS: APPLY: Remove usage of omap_dss_device from manual/auto update checks
APPLY needs to know at certain places whether an overlay manager is in manual
or auto update mode. The caps of the connected omap_dss_device were used to
check that.

A LCD manager is in manual update if stallmode is enabled for that manager. TV
managers for now always auto update.

Return the value of stallmode parameter in the private data 'lcd_confg' in
mgr_manual_update() and ovl_manual_update(), for TV managers stallmode field
will be false by default.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-06-29 16:27:58 +05:30
Archit Taneja 6e5435958c OMAPDSS: MANAGER: Check LCD related overlay manager parameters
The LCD related manager configurations are a part of the manager's private data
in APPLY. Pass this to dss_lcd_mgr_config to dss_mgr_check and create a function
to check the validity of some of the configurations.

To check some of the configurations, we require information of interface to
which the manager output is connected. These can be added once interfaces are
represented as an entity.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-06-29 16:27:57 +05:30
Archit Taneja f476ae9dab OMAPDSS: APPLY: Remove DISPC writes to manager's lcd parameters in interface drivers
Replace the DISPC fuctions used to configure LCD channel related manager
parameters with dss_mgr_set_lcd_config() in APPLY. This function ensures that
the DISPC registers are written at the right time by using the shadow register
programming model.

The LCD manager configurations is stored as a private data of manager in APPLY.
It is treated as an extra info as it's the panel drivers which trigger this
apply via interface drivers, and not a DSS2 user like omapfb or omapdrm.

Storing LCD manager related properties in APPLY also prevents the need to refer
to the panel connected to the manager for information. This helps in making the
DSS driver less dependent on panel.

A helper function is added to check whether the manager is LCD or TV. The direct
DISPC register writes are removed from the interface drivers.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-06-29 16:27:42 +05:30
Archit Taneja 37a579903e OMAPDSS: SDI: Configure dss_lcd_mgr_config struct with lcd manager parameters
Create a dss_lcd_mgr_config struct instance in SDI. Fill up all the parameters
of the struct with configurations held by the panel, and the configurations
required by SDI.

Use these to write to the DISPC registers. These direct register writes would be
later replaced by a function which applies the configuration using the shadow
register programming model.

Create function sdi_config_lcd_manager() which fills the mgr_config parameters
and writes to the DISPC registers.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-06-29 16:02:41 +05:30
Archit Taneja 7d2572f8b3 OMAPDSS: DSI: Configure dss_lcd_mgr_config struct with lcd manager parameters
Create a dss_lcd_mgr_config struct instance in DSI. Fill up all the parameters
of the struct with configurations held by the panel, and the configurations
required by DSI.

Use these to write to the DISPC registers. These direct register writes would be
later replaced by a function which applies the configuration using the shadow
register programming model.

The function dsi_configure_dispc_clocks() is now called in
dsi_display_init_dispc(), this lets all the lcd manager related configurations
happen in the same place. The DISPC_DIVISORo register was written in
dsi_configure_dispc_clock(), now it just fills up the dispc_clock_info parameter
in mgr_config. The clock_info is written later in dsi_display_init_dispc().

Signed-off-by: Archit Taneja <archit@ti.com>
2012-06-29 16:02:26 +05:30
Archit Taneja bc2e60a69f OMAPDSS: RFBI: Configure dss_lcd_mgr_config struct with lcd manager parameters
Create a dss_lcd_mgr_config struct instance in RFBI. Fill up all the parameters
of the struct with configurations held by the panel, and the configurations
required by RFBI.

Use these to write to the DISPC registers. These direct register writes would be
later replaced by a function which applies the configuration using the shadow
register programming model.

Create function rfbi_config_lcd_manager() which fills up the mgr_config
parameters and writes to the DISPC regs.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-06-29 14:46:49 +05:30
Archit Taneja 5cf9a26411 OMAPDSS: DPI: Configure dss_lcd_mgr_config struct with lcd manager parameters
Create a dss_lcd_mgr_config struct instance in DPI. Fill up all the parameters
of the struct with configurations held by the panel, and the configurations
required by DPI.

Use these to write to the DISPC registers. These direct register writes would be
later replaced by a function which applies the configuration using the shadow
register programming model.

The DISPC_DIVISORo registers were written in the functions dpi_set_dispc_clk()
and dpi_set_dsi_clk(), now they just fill up the dispc_clock_info parameter in
mgr_config. They are written later in dpi_config_lcd_manager.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-06-29 14:46:43 +05:30
Archit Taneja c56fb3ef05 OMAPDSS: Add struct to hold LCD overlay manager configuration
Create a struct dss_lcd_mgr_config which holds LCD overlay manager related
parameters. These are currently partially contained in the omap_dss_device
connected to the manager, and the rest are in the interface driver.

The parameters are directly written to the DISPC registers in the interface
drivers. These should eventually be applied at the correct time using the
shadow register programming model. This struct would help in grouping these
parameters so that they can be applied together.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-06-29 14:03:48 +05:30
Archit Taneja f0d08f89ff OMAPDSS: DISPC: Change return type of dispc_mgr_set_clock_div()
dipsc_mgr_set_clock div has an int return type to report errors or success.
The function doesn't really check for errors and always returns 0. Change
the return type to void.

Checking for the correct DISPC clock divider ranges will be done when a DSS2
user does a manager apply. This support will be added later.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-06-29 14:00:54 +05:30
Archit Taneja bd5a7b11a0 OMAPDSS: DSI: Fix HSYNC, VSYNC and DE polarities between DISPC and DSI
For DSI operation in videomode, DISPC logic levels for the signals HSYNC, VSYNC
and DE need to be specified to DSI via the fields VP_HSYNC_POL, VP_VSYNC_POL and
VP_DE_POL in DSI_CTRL registers.

This information is completely internal to DSS as logic levels for the above
signals hold no meaning on the DSI bus. Hence a DSI panel driver should be
totally oblivious of these fields.

Fix the logic levels/polarities in the DISPC and DSI registers to a default
value. This is done by overriding these fields in omap_video_timings struct
filled by the panel driver for DISPC, and use the equivalent default values
when programming DSI_CTRL registers. Also, remove the redundant polarity related
fields in omap_dss_dsi_videomode_data.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-06-29 10:15:54 +03:00
Archit Taneja cc937e5e4b OMAPDSS: HDMI: Remove custom hdmi_video_timings struct
The hdmi CEA and VESA timings were represented by the struct hdmi_video_timings,
omap_video_timings couldn't be used as it didn't contain the fields hsync/vsync
polarities and interlaced/progressive information.

Remove hdmi_video_timings, and use omap_video_timings instead.

Cc: Mythri P K <mythripk@ti.com>
Signed-off-by: Archit Taneja <archit@ti.com>
2012-06-29 10:15:53 +03:00
Archit Taneja 23bae3adbf OMAPFB: Map interlace field in omap_video_timings with fb vmode flags
Use the interlace field in omap_video_timings to configure/retrieve
corresponding fb mode flags in fb_var_screeninfo and fb_videomode.

The interlace field maps with the fb mode flags FB_VMODE_INTERLACED and
FB_VMODE_NONINTERLACED.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-06-29 10:15:53 +03:00
Archit Taneja 8050cbe4cd OMAPDSS: DISPC/APPLY: Use interlace info in manager timings for dispc_ovl_setup()
Currently the interlace parameter passed to dispc_ovl_setup() is configured by
checking the display type, and set to true if the display type is VENC.

This isn't correct as other panels can take interlaced content too. The
omap_video_timings struct in manager's private data contains the info whether
the panel is in interlaced mode or not.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-06-29 10:15:52 +03:00
Archit Taneja 23c8f88e8a OMAPDSS: Add interlace parameter to omap_video_timings
Add a parameter called interlace which tells whether the timings are in
interlaced or progressive mode. This aligns the omap_video_timings struct with
the Xorg modeline configuration.

It also removes the hack needed to write to divide the manager height by 2 if
the connected interface is VENC.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-06-29 10:15:52 +03:00
Archit Taneja 07fb51c6bd OMAPDSS: Remove omap_panel_config enum from omap_dss_device
omap_panel_config contains fields which are finally written to DISPC_POL_FREQo
registers. These are now held by omap_video_timings and are set when the manager
timings are applied.

Remove the omap_panel_config enum, and remove all it's references from panel or
interface drivers.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-06-29 10:15:51 +03:00
Archit Taneja 783babf33f OMAPFB: Map the newly added omap_video_timings fields with fb sync flags
Use the newly added fields in omap_video_timings(hsync, vsync and data_enable
logic levels and data, hsync and vsync latching related info) to
configure/retrieve corresponding sync flags in fb_var_screeninfo and
fb_videomode.

Out of the new fields, hsync_level and vsync_level can be mapped to the fb sync
flags FB_SYNC_HOR_HIGH_ACT and FB_SYNC_VERT_HIGH_ACT.

When converting fb mode to omap_video_timings, the fields which don't have an
equivalent parameter in fb are kept as the original values if the panel driver
has a get_timings op, else they are set to default values.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-06-29 10:15:51 +03:00
Archit Taneja 0e065c79e6 OMAPDSS: DISPC: Remove dispc_mgr_set_pol_freq()
dispc_mgr_set_pol_freq() configures the fields in the register DISPC_POL_FREQo.
All these fields have been moved to omap_video_timings struct, and are now
programmed in dispc_mgr_set_lcd_timings(). These will be configured when timings
are applied via dss_mgr_set_timings().

Remove dispc_mgr_set_pol_freq() and it's calls from the interface drivers.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-06-29 10:15:50 +03:00
Archit Taneja 655e294116 OMAPDSS: DISPC: Configure newly added omap_video_timing fields
Hsync, Vsync, Data enable enable logic levels and latching info of Data lanes,
Hsync and Vsync signals(with respect to pixel clock) are newly added parameters
in omap_video_timings.

Program these in dispc_mgr_set_lcd_timings. These will be configured when the
manager's timings are set via dss_mgr_set_timings().

Signed-off-by: Archit Taneja <archit@ti.com>
2012-06-29 10:15:50 +03:00
Archit Taneja a14909eac8 OMAPDSS: DISPLAY: Ignore newly added omap_video_timings fields for display timings sysfs file
The display sysfs file for viewing/storing display timings is something which
will be deprecated. The new omap_video_timings fields (hsync_level, vsync_level
and others) are not configurable or viewable via this sysfs file.

This prevents the need to make the input more configurable to take the new
fields and at the same time work without these fields for backward
compatibility.

In display_timings_store, the omap_video_timings struct used to set the timings
is initialized to the existing panel timings so that the new fields are taken in
correctly. The other fields are taken from the user as before.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-06-29 10:15:49 +03:00
Archit Taneja a8d5e41cef OMAPDSS: Add some new fields to omap_video_timings
Some panel timing related fields are contained in omap_panel_config in the form
of flags. The fields are:

- Hsync logic level
- Vsync logic level
- Data driven on rising/falling edge of pixel clock
- Output enable/Data enable logic level
- HSYNC/VSYNC driven on rising/falling edge of pixel clock

Out of these parameters, Hsync and Vsync logic levels are a part of the timings
in the Xorg modeline configuration. So it makes sense to move the to
omap_video_timings. The rest aren't a part of modeline, but it still makes
sense to move these since they are related to panel timings.

These fields stored in omap_panel_config in dssdev are configured for LCD
panels, and the corresponding LCD managers in the DISPC_POL_FREQo registers.

Add the above fields in omap_video_timings. Represent their state via new enums.

Add these parameters to the omap_video_timings instances in the panel drivers.
Keep the corresponding IVS, IHS, IPC, IEO, RF and ONOFF flags in
omap_panel_config for now. The struct will be removed later.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-06-29 10:15:49 +03:00
Archit Taneja a9105cb5c2 OMAPDSS: Remove passive matrix LCD support (part 4)
Remove configuration of Ac-bias pins

Ac-bias pins need to be configured only for passive matrix displays. Remove
acbi and acb fields in omap_dss_device and their configuration in panel
drivers. Don't program these fields in DISP_POL_FREQo register any more.

The panel driver for sharp-ls037v7dw01, and the panel config for
Innolux AT070TN8 in generic dpi panel driver set acb to a non zero value. This
is most likely carried over from the old omapfb driver which supported passive
matrix displays.

Cc: Thomas Weber <weber@corscience.de>
Signed-off-by: Archit Taneja <archit@ti.com>
2012-06-29 10:15:48 +03:00
Archit Taneja d21f43bc39 OMAPDSS: Remove passive matrix LCD support (part 3)
Remove omap_lcd_display_type enum

The enum omap_lcd_display_type is used to configure the lcd display type in
DISPC. Remove this enum and always set display type to TFT by creating function
dss_mgr_set_lcd_type_tft().

Signed-off-by: Archit Taneja <archit@ti.com>
2012-06-29 10:15:46 +03:00
Archit Taneja 5ae9eaa6db OMAPDSS: Remove passive matrix LCD support (part 2)
Remove OMAP_DSS_LCD_TFT as a omap_panel_config flag.

We don't support passive matrix displays any more. Remove this flag from all the
panel drivers.

Force the display_type to OMAP_DSS_LCD_DISPLAY_TFT in the interface drivers.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-06-29 10:10:03 +03:00
Archit Taneja 6d523e7b0e OMAPDSS: Remove passive matrix LCD support (part 1)
Remove clock constraints related to passive matrix displays.

There is a constraint (pcd_min should be 3) for passive matrix displays. Remove
this constraint in clock divider calculations as we won't support passive
matrix displays any more.

This cleans up the functions which calculate the clock dividers with DSI's PLL
or DSS_FCLK as the clock source.

Signed-off-by: Archit Taneja <archit@ti.com>
2012-06-29 10:10:03 +03:00
Jassi Brar 3a5383a237 OMAPDSS: HDMI: Replace spinlock with mutex in hdmi_check_hpd_state
State change of HDMI PHY could potentially take many millisecs, we can do
better by protecting things in hdmi_set_phy_pwr() with a mutex rather than
a spin_lock_irqsave.

Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-06-29 09:42:42 +03:00
Jassi Brar ece2f1539e OMAPDSS: HDMI: Discard phy_tx_enabled member
It is simpler to read the current status from a register as compared
to maintaining a state variable to hold the information.

Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-06-29 09:41:33 +03:00
Chandrabhanu Mahapatra 6f1891fc70 OMAPDSS: Add dump and debug support for LCD3
DISPC functions have been modified to provide clock and register dumps and debug
support for the LCD3 manager.

Signed-off-by: Chandrabhanu Mahapatra <cmahapatra@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-06-29 09:41:29 +03:00
Chandrabhanu Mahapatra e86d456a23 OMAPDSS: Add LCD3 overlay manager and Clock and IRQ support
The support for LCD3 manager has been added into the manager module. LCD3 panel
has registers as DISPC_CONTROL3 and DISPC_CONFIG3 just like those in LCD and
LCD2 panels. These registers control the Display Controller (DISPC) module for
LCD3 output. The three LCDs support Display Serial Interface (DSI), Remote Frame
Buffer Interface (RFBI) and Parallel CMOS Output Interface (DPI). These LCDs can
be connected through parallel output interface using DISPC and RFBI or DPI. For
serial interface DSS uses DSI.

The LCD3 panel, just like LCD and LCD2 panels, has a clock switch in DSS_CTRL
register which has been enabled. The clock switch chooses between DSS_CLK and
DPLL_DSI1_C_CLK1 as source for LCD3_CLK. New IRQs as DISPC_IRQ_VSYNC3,
DISPC_IRQ_FRAMEDONE3, DISPC_IRQ_ACBIAS_COUNT_STAT3 and DISPC_IRQ_SYNC_LOST3 have
been added specific to the new manager.

Signed-off-by: Chandrabhanu Mahapatra <cmahapatra@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-06-29 09:41:24 +03:00
Chandrabhanu Mahapatra ff6331e25e OMAPDSS: Add support for LCD3 channel
OMAP5 Display Subsystem (DSS) architecture comes with a additional LCD3 channel
with its own dedicated overlay manager. The current patch adds LCD3 channel and
basic register support for LCD3 channel. It adds register addresses for various
Display Controller (DISPC) registers like DISPC_DEFAULT_COLOR, DISPC_TIMING_H,
DISPC_DIVISORo, etc.

Signed-off-by: Chandrabhanu Mahapatra <cmahapatra@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-06-29 09:41:20 +03:00
Chandrabhanu Mahapatra efa70b3b7d OMAPDSS: Cleanup implementation of LCD channels
The current implementation of LCD channels and managers consists of a number of
if-else construct which has been replaced by a simpler interface. A constant
structure mgr_desc has been created in Display Controller (DISPC) module. The
mgr_desc contains for each channel its name, irqs and  is initialized one time
with all registers and their corresponding fields to be written to enable
various features of Display Subsystem. This structure is later used by various
functions of DISPC which simplifies the further implementation of LCD channels
and its corresponding managers.

Signed-off-by: Chandrabhanu Mahapatra <cmahapatra@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-06-29 09:41:15 +03:00
Tomi Valkeinen 5be3aebd09 OMAPDSS: fix warnings if CONFIG_PM_RUNTIME=n
If runtime PM is not enabled in the kernel config, pm_runtime_get_sync()
will always return 1 and pm_runtime_put_sync() will always return
-ENOSYS. pm_runtime_get_sync() returning 1 presents no problem to the
driver, but -ENOSYS from pm_runtime_put_sync() causes the driver to
print a warning.

One option would be to ignore errors returned by pm_runtime_put_sync()
totally, as they only say that the call was unable to put the hardware
into suspend mode.

However, I chose to ignore the returned -ENOSYS explicitly, and print a
warning for other errors, as I think we should get notified if the HW
failed to go to suspend properly.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Jassi Brar <jaswinder.singh@linaro.org>
Cc: Grazvydas Ignotas <notasas@gmail.com>
2012-06-29 09:09:49 +03:00
Tomi Valkeinen 2b8501d777 OMAPDSS: Use PM notifiers for system suspend
The current way how omapdss handles system suspend and resume is that
omapdss device (a platform device, which is not part of the device
hierarchy of the DSS HW devices, like DISPC and DSI, or panels.) uses
the suspend and resume callbacks from platform_driver to handle system
suspend. It does this by disabling all enabled panels on suspend, and
resuming the previously disabled panels on resume.

This presents a few problems.

One is that as omapdss device is not related to the panel devices or the
DSS HW devices, there's no ordering in the suspend process. This means
that suspend could be first ran for DSS HW devices and panels, and only
then for omapdss device. Currently this is not a problem, as DSS HW
devices and panels do not handle suspend.

Another, more pressing problem, is that when suspending or resuming, the
runtime PM functions return -EACCES as runtime PM is disabled during
system suspend. This causes the driver to print warnings, and operations
to fail as they think that they failed to bring up the HW.

This patch changes the omapdss suspend handling to use PM notifiers,
which are called before suspend and after resume. This way we have a
normally functioning system when we are suspending and resuming the
panels.

This patch, I believe, creates a problem that somebody could enable or
disable a panel between PM_SUSPEND_PREPARE and the system suspend, and
similarly the other way around in resume. I choose to ignore the problem
for now, as it sounds rather unlikely, and if it happens, it's not
fatal.

In the long run the system suspend handling of omapdss and panels should
be thought out properly. The current approach feels rather hacky.
Perhaps the panel drivers should handle system suspend, or the users of
omapdss (omapfb, omapdrm) should handle system suspend.

Note that after this patch we could probably revert
0eaf9f52e9 (OMAPDSS: use sync versions of
pm_runtime_put). But as I said, this patch may be temporary, so let's
leave the sync version still in place.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reported-by: Jassi Brar <jaswinder.singh@linaro.org>
Tested-by: Jassi Brar <jaswinder.singh@linaro.org>
2012-06-29 09:09:40 +03:00
Rajendra Nayak f11766d1c2 OMAPDSS: add clk_prepare_enable and clk_disable_unprepare
In preparation of OMAP moving to Common Clk Framework(CCF) change
clk_enable() and clk_disable() calls to clk_prepare_enable() and
clk_disable_unprepare() in omapdss. This can be safely done, as omapdss
never enables or disables clocks in atomic context.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: <linux-fbdev@vger.kernel.org>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Mike Turquette <mturquette@linaro.org>
[tomi.valkeinen@ti.com: updated patch description]
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-06-29 09:09:17 +03:00
Peter Meerwald 7df913b352 OMAPDSS: fix specification spelling in Kconfig
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-06-28 09:11:45 +03:00
Tomi Valkeinen 0df8ad71a2 OMAPDSS: remove enum omap_dss_overlay_managers
We have two almost the same enums: omap_channel and
omap_dss_overlay_managers. omap_channel is used almost everywhere, and
omap_channel assigns explicit values to the enum values which are needed
for proper operation.

omap_dss_overlay_managers is only used in one place, so it's easy to
remove it, which is what this patch does.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-06-28 09:11:28 +03:00
Aditya Nellutla 3b9cc4ea47 da8xx-fb: Rounding FB size to satisfy SGX buffer requirements
In the real time use-case when SGX is used for rendering to FB buffers it has been
observed that, the available memory from framebuffer driver is not sufficient for
SGX under certain cases (like 16-bit WVGA resolution). SGX requires 2 swap buffers
with each of the buffers aligned to lcm(line_length, PAGE_SIZE).

Inorder to satisfy this requirement, we have two options,

	- Increase number of FB buffers (LCD_NUM_BUFFERS) to 3. This is not
	  recommended as we end up wasting huge memory in most of the cases.

	- Align FB buffers to lcm(line_length, PAGE_SIZE).This ensures framebuffer
	  size is increased to satisfy SGX requirements keeping alignment intact.

This patch makes sure that FB allocates buffers aligned to above formula.

Signed-off-by: Aditya Nellutla <aditya.n@ti.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-06-27 07:01:38 +00:00
Liu Ying 41a490ec01 mx3fb: avoid screen flash when panning with fb_set_var
Users may call FBIOPUT_VSCREENINFO ioctrl to do pan display.
This ioctrl relies on fb_set_var() to do the job. fb_set_var()
calls custom fb_set_par() method and then calls custom
fb_pan_display() method. The current implementation of mx3fb
reinitializes IPU display controller every time the custom
fb_set_par() method is called, which makes the screen flash
if fb_set_var() is called to do panning frequently. This patch
compares the new var info with the cached old one to decide
whether we really need to reinitialize IPU display controller.
We ignore xoffset and yoffset update because it doesn't require
to reinitialize the controller. Users may specify activate field
of var info with FB_ACTIVATE_NOW and FB_ACTIVATE_FORCE to
reinialize the controller by force.

Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-06-27 06:59:51 +00:00
Liu Ying 6cd77e00c0 mx3fb: support pan display with fb_set_var
Users may call FBIOPUT_VSCREENINFO ioctrl to do pan display.
This ioctrl relies on fb_set_var() to do the job. fb_set_var()
calls the custom fb_set_par() method and then calls the custom
fb_pan_display() method. Before calling the custom fb_pan_display()
method, info->var is already updated from the new *var in fb_set_var().
And, the custom fb_pan_display() method checks if xoffset and yoffset
in info->var and the new *var are different before doing actual panning,
which prevents the panning from happening within fb_set_var() context.
This patch caches the current var info locally in mx3fb driver so that
pan display with fb_set_var is supported.

Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-06-27 06:59:51 +00:00
Florian Tobias Schandinat 0f90fa539d Merge branch 'planes' of git://linuxtv.org/pinchartl/fbdev into fbdev-next 2012-06-24 13:58:53 +00:00
Paul Bolle 44edebca39 video: backlight: remove unused header
Commit 9befe40f6e ("video: backlight:
support s6e8ax0 panel driver based on MIPI DSI") added s6e8ax0.h, but
no file includes it. That's probably a good thing, because it declares
an extern void function that is defined static int in s6e8ax0.c.
Besides, that function is also wrapped in the module_init() macro, which
should do everything needed to make that function available to the code
outside of s6e8ax0.c. This header can safely be removed.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Donghwa Lee <dh09.lee@samsung.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-06-24 13:54:52 +00:00
Jingoo Han db131b1024 video: exynos_dp: remove duplicated declarations from header file
Some functions are declared twice in header file; thus, these
declarations are unnecessary.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-06-24 13:54:45 +00:00
Jingoo Han 64c43dfa86 video: exynos_dp: fix build warning due to uninitialized value
This patch fixes build warning due to uninitialized value dereference.

drivers/video/exynos/exynos_dp_core.c: In function 'exynos_dp_set_link_train':
drivers/video/exynos/exynos_dp_core.c:529:18: warning: 'reg' may be used uninitialized in this function [-Wuninitialized]
drivers/video/exynos/exynos_dp_core.c:395:6: note: 'reg' was declared here

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-06-24 13:54:31 +00:00
Laurent Pinchart c5deac3c9b fbdev: sh_mobile_lcdc: Implement overlays support
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2012-06-20 10:02:54 +02:00
Laurent Pinchart d7ad334218 fbdev: sh_mobile_lcdc: Rename fb operation handlers with a common prefix
Make all fb operation handlers start with sh_mobile_lcdc_ in preparation
for the multi-plane support.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2012-06-20 10:02:53 +02:00
Laurent Pinchart 3281e54c80 fbdev: sh_mobile_lcdc: Constify sh_mobile_lcdc_fix structure
The structure is only read, make it const.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2012-06-20 10:02:53 +02:00
Guennadi Liakhovetski e6765ffa68 fbdev: sh_mipi_dsi: fix a section mismatch
sh_mipi_setup() is called from a .text function, therefore it cannot be
__init. Additionally, sh_mipi_remove() can be moved to the .devexit.text
section.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2012-06-20 10:02:53 +02:00
Linus Torvalds 88c144b12a fbdev fixes for 3.5
- two fixes for s3c-fb by Jingoo Han
   (including a fix for a potential division by zero)
 - a couple of randconfig fixes by Arnd Bergmann
 - a cleanup for bfin_adv7393fb by Emil Goode
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Merge tag 'fbdev-fixes-for-3.5-1' of git://github.com/schandinat/linux-2.6

Pull fbdev fixes from Florian Tobias Schandinat:

 - two fixes for s3c-fb by Jingoo Han (including a fix for a potential
   division by zero)

 - a couple of randconfig fixes by Arnd Bergmann

 - a cleanup for bfin_adv7393fb by Emil Goode

* tag 'fbdev-fixes-for-3.5-1' of git://github.com/schandinat/linux-2.6:
  video: s3c-fb: fix possible division by zero in s3c_fb_calc_pixclk
  video: s3c-fb: clear SHADOWCON register when clearing hardware window registers
  drivers/tosa: driver needs I2C and SPI to compile
  drivers/savagefb: use mdelay instead of udelay
  video/console: automatically select a font
  video/ili9320: do not mark exported functions __devexit
  drivers/video: use correct __devexit_p annotation
  video: bfin_adv7393fb: Convert to kstrtouint_from_user
2012-06-16 16:59:05 -07:00
Jingoo Han b67989515d video: s3c-fb: fix possible division by zero in s3c_fb_calc_pixclk
Divider value can be zero and it makes division by zero
from debug message in s3c_fb_calc_pixclk; therefore, it
should be fixed.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-06-13 17:34:16 +00:00
Jingoo Han ecd57ae28e video: s3c-fb: clear SHADOWCON register when clearing hardware window registers
All bits of SHADOWCON register should be cleared when clearing
hardware window registers; however, some bits of SHADOWCON register
are not cleared previously.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-06-13 17:34:16 +00:00
Linus Torvalds 7794f709c5 Small fixes for omapdss driver. Most importantly, fixes a build problem when
debugfs or omapdss debug support is turned off, and fixes a suspend related
 crash.
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Merge tag 'omapdss-for-3.5-rc2' of git://gitorious.org/linux-omap-dss2/linux

Pull omapdss build problem fix from Tomi Valkeinen:
 "Small fixes for omapdss driver.  Most importantly, fixes a build
  problem when debugfs or omapdss debug support is turned off, and fixes
  a suspend related crash."

This has apparently been annoying rmk for a while..

* tag 'omapdss-for-3.5-rc2' of git://gitorious.org/linux-omap-dss2/linux:
  OMAPDSS: fix registration of DPI and SDI devices
  OMAPDSS: DSI: Fix bug when calculating LP command interleaving parameters
  OMAPDSS: fix bogus WARN_ON in dss_runtime_put()
  OMAPDSS: Taal: fix compilation warning
  OMAPDSS: fix build when DEBUG_FS or DSS_DEBUG_SUPPORT disabled
2012-06-13 17:57:30 +03:00
Tomi Valkeinen 289733ed45 Linux 3.5-rc2
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Merge tag 'v3.5-rc2'

Merge v3.5-rc2 to get latest device tree and dynamic debug changes.
2012-06-13 11:24:38 +03:00
Arnd Bergmann 5fc05780b8 drivers/tosa: driver needs I2C and SPI to compile
This driver requires both SPI and I2C to build.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-06-09 12:51:12 +00:00
Arnd Bergmann f5c3ac242d drivers/savagefb: use mdelay instead of udelay
Long delays need to use mdelay on architectures such as ARM
that cannot compute long timeouts in udelay.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-06-09 12:51:12 +00:00
Arnd Bergmann d399099cbb video/console: automatically select a font
The frame buffer console needs at least one font to be built into
the kernel, so add the necessary Kconfig magic to guarantee that
one of the available font is always on. If a user accidentally
disables all fonts manually, the 8x16 font will be selected
anyway.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-06-09 12:51:11 +00:00
Arnd Bergmann ff9440465c video/ili9320: do not mark exported functions __devexit
No symbol can be exported when the section is discarded - the only
solution I could think of is not to mark symbols as __devexit
when they are exported.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-06-09 12:51:11 +00:00
Arnd Bergmann 6f32d03bc6 drivers/video: use correct __devexit_p annotation
__devexit functions are discarded when CONFIG_HOTPLUG
is not set, so the symbol needs to be referenced carefully.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-06-09 12:51:11 +00:00
Emil Goode 5c888aa43e video: bfin_adv7393fb: Convert to kstrtouint_from_user
This patch removes a call to the deprecated simple_strtoul function
and simplifies the code by replacing two function calls with one
call to kstrtouint_from_user.

-Simplify the adv7393_write_proc function by replacing the
 simple_strtoul and copy_from_user calls with one call
 to kstrtouint_from_user.

-Change the count parameter from unsigned long to size_t as
 this is the type that the kstrtouint_from_user function expects.
 (size_t is what will be passed to the adv7393_write_proc function
 by the proc write handler function proc_file_write anyway)

Signed-off-by: Emil Goode <emilgoode@gmail.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-06-05 21:47:26 +00:00
Florian Tobias Schandinat 70b6eaee40 Small fixes for omapdss driver. Most importantly, fixes a build problem when
debugfs or omapdss debug support is turned off, and fixes a suspend related
 crash.
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Merge tag 'omapdss-for-3.5-rc2' of git://gitorious.org/linux-omap-dss2/linux into fbdev-for-linus

Small fixes for omapdss driver. Most importantly, fixes a build problem when
debugfs or omapdss debug support is turned off, and fixes a suspend related
crash.
2012-06-05 21:46:54 +00:00
Archit Taneja 2e063c305a OMAPDSS: DSI: Fix bug when calculating LP command interleaving parameters
In function dsi_compute_interleave_lp(), the escape clock/LP clock time period
is calculated incorrectly. The escape clock/LP clock is calculated as:

LP Clock(Hz) = DSI_FCLK(Hz) / lp_clk_div

Since we are calculating the time period of LP clock, the LP clock divider
should be multiplied with the time period of DSI_FCLK.

Calculating incorrect value of txclkesc results in incorrect calculation of LP
interleaving parameters, it also creates a possibility of a divide by zero
error.

Reported-by: Sureshkumar Manimuthu <mail2msuresh@ti.com>

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-06-04 13:07:51 +03:00
Tomi Valkeinen 5025ce070e OMAPDSS: fix bogus WARN_ON in dss_runtime_put()
pm_runtime_put_sync() in dss_runtime_put() returns -EBUSY when any child
of dss is still enabled. This happens, for example, when a display
output is enabled and one dumps the clocks via debugfs. This causes
dss_runtime_get & put to be called.

While I couldn't find anything about this in the documentation and it
wasn't immediately clear from runtime_pm code, it looks to me that
pm_runtime_put_sync() returns -EBUSY to inform that things went fine,
but the device could not be turned off as there are still child devices
that are enabled. This is not a problem.

This patch skips the WARN_ON if pm_runtime_put_sync() returns -EBUSY.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-06-04 11:04:41 +03:00
Tomi Valkeinen d1700f9258 OMAPDSS: Taal: fix compilation warning
This patch fixes a warning:

drivers/video/omap2/displays/panel-taal.c: In function
‘taal_num_errors_show’:
drivers/video/omap2/displays/panel-taal.c:529: warning: ‘errors’ may be
used uninitialized in this function

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-06-04 11:04:40 +03:00
Tomi Valkeinen 0e9a126e95 OMAPDSS: fix build when DEBUG_FS or DSS_DEBUG_SUPPORT disabled
If CONFIG_DEBUG_FS or CONFIG_OMAP2_DSS_DEBUG_SUPPORT is disabled, the
build fails:

drivers/video/omap2/dss/core.c:197:50: error: static declaration of
'dss_debugfs_create_file' follows non-static declaration
drivers/video/omap2/dss/dss.h:166:5: note: previous declaration of
'dss_debugfs_create_file' was here

This patch fixes the dummy dss_debugfs_create_file() so that the driver
builds.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-06-04 11:04:40 +03:00
Linus Torvalds 804ce9866d fbdev updates for 3.5
It includes:
 - driver for AUO-K1900 and AUO-K1901 epaper controller
 - large updates for OMAP (e.g. decouple HDMI audio and video)
 - some updates for Exynos and SH Mobile
 - various other small fixes and cleanups
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Merge tag 'fbdev-updates-for-3.5' of git://github.com/schandinat/linux-2.6

Pull fbdev updates from Florian Tobias Schandinat:
 - driver for AUO-K1900 and AUO-K1901 epaper controller
 - large updates for OMAP (e.g. decouple HDMI audio and video)
 - some updates for Exynos and SH Mobile
 - various other small fixes and cleanups

* tag 'fbdev-updates-for-3.5' of git://github.com/schandinat/linux-2.6: (130 commits)
  video: bfin_adv7393fb: Fix cleanup code
  video: exynos_dp: reduce delay time when configuring video setting
  video: exynos_dp: move sw reset prioir to enabling sw defined function
  video: exynos_dp: use devm_ functions
  fb: handle NULL pointers in framebuffer release
  OMAPDSS: HDMI: OMAP4: Update IRQ flags for the HPD IRQ request
  OMAPDSS: Apply VENC timings even if panel is disabled
  OMAPDSS: VENC/DISPC: Delay dividing Y resolution for managers connected to VENC
  OMAPDSS: DISPC: Support rotation through TILER
  OMAPDSS: VRFB: remove compiler warnings when CONFIG_BUG=n
  OMAPFB: remove compiler warnings when CONFIG_BUG=n
  OMAPDSS: remove compiler warnings when CONFIG_BUG=n
  OMAPDSS: DISPC: fix usage of dispc_ovl_set_accu_uv
  OMAPDSS: use DSI_FIFO_BUG workaround only for manual update displays
  OMAPDSS: DSI: Support command mode interleaving during video mode blanking periods
  OMAPDSS: DISPC: Update Accumulator configuration for chroma plane
  drivers/video: fsl-diu-fb: don't initialize the THRESHOLDS registers
  video: exynos mipi dsi: support reverse panel type
  video: exynos mipi dsi: Properly interpret the interrupt source flags
  video: exynos mipi dsi: Avoid races in probe()
  ...
2012-06-01 16:57:51 -07:00
Mark Brown 14674e7011 i2c: Split I2C_M_NOSTART support out of I2C_FUNC_PROTOCOL_MANGLING
Since there are uses for I2C_M_NOSTART which are much more sensible and
standard than most of the protocol mangling functionality (the main one
being gather writes to devices where something like a register address
needs to be inserted before a block of data) create a new I2C_FUNC_NOSTART
for this feature and update all the users to use it.

Also strengthen the disrecommendation of the protocol mangling while we're
at it.

In the case of regmap-i2c we remove the requirement for mangling as
I2C_M_NOSTART is the only mangling feature which is being used.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2012-05-30 10:55:34 +02:00
Jingoo Han c8515294a3 backlight: tosa_lcd: use devm_ functions
The devm_ functions allocate memory that is released when a driver
detaches.  This patch uses devm_kzalloc of these functions.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Dmitry Baryshkov <dbaryshkov@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-29 16:22:31 -07:00
Jingoo Han f072c8900c backlight: tosa_bl: use devm_ functions
The devm_ functions allocate memory that is released when a driver
detaches.  This patch uses devm_kzalloc of these functions.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Dmitry Baryshkov <dbaryshkov@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-29 16:22:31 -07:00
Jingoo Han d073adc5ca backlight: tdo24m: use devm_ functions
The devm_ functions allocate memory that is released when a driver
detaches.  This patch uses devm_kzalloc of these functions.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-29 16:22:31 -07:00
Jingoo Han 541f936f5d backlight: s6e63m0: use devm_ functions
The devm_ functions allocate memory that is released when a driver
detaches.  This patch uses devm_kzalloc of these functions.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: InKi Dae <inki.dae@samsung.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-29 16:22:31 -07:00
Jingoo Han ab03e04741 backlight: ltv350qv: use devm_ functions
The devm_ functions allocate memory that is released when a driver
detaches.  This patch uses devm_kzalloc of these functions.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-29 16:22:31 -07:00
Jingoo Han 26f2b35c1e backlight: lms283gf05: use devm_ functions
The devm_ functions allocate memory that is released when a driver
detaches.  This patch uses devm_kzalloc of these functions.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-29 16:22:30 -07:00
Jingoo Han 86f6be4fae backlight: ld9040: use devm_ functions
The devm_ functions allocate memory that is released when a driver
detaches.  This patch uses devm_kzalloc of these functions.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Donghwa Lee <dh09.lee@samsung.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-29 16:22:30 -07:00
Jingoo Han ba4a887ac3 backlight: l4f00242t03: use devm_ functions
The devm_ functions allocate memory that is released when a driver
detaches.  This patch uses devm_kzalloc of these functions.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Alberto Panizzo <alberto@amarulasolutions.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-29 16:22:30 -07:00
Jingoo Han 9828eb09bf backlight: ili9320: use devm_ functions
The devm_ functions allocate memory that is released when a driver
detaches.  This patch uses devm_kzalloc of these functions.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-29 16:22:30 -07:00
Jingoo Han 06c96f189b backlight: corgi_lcd: use devm_ functions
The devm_ functions allocate memory that is released when a driver
detaches.  This patch uses devm_kzalloc of these functions.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-29 16:22:30 -07:00
Jingoo Han 80629efcae backlight: ams369fg06: use devm_ functions
The devm_ functions allocate memory that is released when a driver
detaches.  This patch uses devm_kzalloc of these functions.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-29 16:22:30 -07:00
Jingoo Han 91cdb23990 backlight: adp8870: use devm_ functions
The devm_ functions allocate memory that is released when a driver
detaches.  This patch uses devm_kzalloc of these functions.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-29 16:22:30 -07:00
Jingoo Han 58875ea925 backlight: adp8860: use devm_ functions
The devm_ functions allocate memory that is released when a driver
detaches.  This patch uses devm_kzalloc of these functions.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-29 16:22:30 -07:00
Corentin Chary f5f4fd4516 backlight: initialize struct backlight_properties properly
In all these files, the .power field was never correctly initialized.

Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
Cc: Jingoo Han <jg1.han@samsung.com>
Cc: Dave Airlie <airlied@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-29 16:22:30 -07:00
Jingoo Han 6677110b74 drivers/video/backlight/l4f00242t03.c: use pr_fmt
This driver uses pr_debug(), so provide it with the appropriate prefixing.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Alberto Panizzo <alberto@amarulasolutions.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-29 16:22:30 -07:00
Jingoo Han c3539731c2 backlight: progear: use pr_err() instead of printk()
Use pr_err() instead of printk() to allow dynamic debugging.  The pr_fmt
prefix for pr_ macros is used.  Also fix checkpatch warnings as below:

WARNING: printk() should include KERN_ facility level

[akpm@linux-foundation.org: use KBUILD_MODNAME, per Joe]
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Marcin Juszkiewicz <openembedded@haerwu.biz>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-29 16:22:30 -07:00
Jingoo Han 95e93132e4 backlight: omap1: use pr_info() instead of printk()
Use pr_info() instead of printk() to allow dynamic debugging.  The pr_fmt
prefix for pr_ macros is used.  Also fix checkpatch warning as below:

WARNING: Prefer pr_info(... to printk(KERN_INFO, ...

[akpm@linux-foundation.org: use KBUILD_MODNAME, per Joe]
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Andrzej Zaborowski <balrogg@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-29 16:22:30 -07:00
Jingoo Han 20c225cbb6 backlight: jornada720: use pr_err()/pr_info() instead of printk()
Use pr_err()/pr_info() instead of printk() to allow dynamic debugging.
The pr_fmt prefix for pr_ macros is used.  Also fix checkpatch warnings as
below:

WARNING: Prefer pr_err(... to printk(KERN_ERR, ...
WARNING: Prefer pr_info(... to printk(KERN_INFO, ...

[akpm@linux-foundation.org: use KBUILD_MODNAME, per Joe]
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Kristoffer Ericson <kristoffer.ericson@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-29 16:22:29 -07:00
Jingoo Han 8c7610f3b4 backlight: generic_bl: use pr_info() instead of printk()
Use pr_info() instead of printk() to allow dynamic debugging.  The pr_fmt
prefix for pr_ macros is used.  Also fix checkpatch warnings as below:

WARNING: printk() should include KERN_ facility level

[akpm@linux-foundation.org: use KBUILD_MODNAME, per Joe]
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-29 16:22:29 -07:00
Jingoo Han 31e6432b32 backlight: cr_bllcd: use pr_err()/pr_info() instead of printk()
Use pr_err()/pr_info() instead of printk() to allow dynamic debugging.
The pr_fmt prefix for pr_ macros is used.  Also fix checkpatch warnings as
below:

WARNING: printk() should include KERN_ facility level
WARNING: Prefer pr_err(... to printk(KERN_ERR, ...

[akpm@linux-foundation.org: use KBUILD_MODNAME, per Joe]
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-29 16:22:29 -07:00
Jingoo Han 7b12c1b9ee backlight: apple_bl: use pr_debug()/pr_err() instead of printk()
Use pr_debug()/pr_err() instead of printk() to allow dynamic debugging.
The pr_fmt prefix for pr_ macros is used.  Also fix checkpatch warnings as
below:

WARNING: Prefer pr_debug(... to printk(KERN_DEBUG, ...
WARNING: Prefer pr_err(... to printk(KERN_ERR, ...

[akpm@linux-foundation.org: use KBUILD_MODNAME, per Joe]
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-29 16:22:29 -07:00
Jingoo Han 35f961623c backlight: use pr_warn() and pr_debug() instead of printk()
Use pr_warn() and pr_debug() instead of printk to allow dynamic debugging.
The pr_fmt prefix for pr_ macros is used.  Also fix checkpatch warnings
as below:

WARNING: Prefer pr_warn(... to printk(KERN_WARNING, ...

[akpm@linux-foundation.org: use KBUILD_MODNAME, per Joe]
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-29 16:22:29 -07:00
Jingoo Han 71d7225cd4 drivers/video/backlight/adp5520_bl.c: use kstrtoul()
The usage of strict_strtoul() is not preferred. Thus, kstrtoul
should be used.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Michael Hennerich <michael.hennerich@analog.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-29 16:22:29 -07:00
Jingoo Han dc406f5631 drivers/video/backlight/adp8870_bl.c: use kstrtoul()
The usage of strict_strtoul() is not preferred. Thus, kstrtoul
should be used.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Michael Hennerich <michael.hennerich@analog.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-29 16:22:29 -07:00
Jingoo Han 8dd9d7f2df drivers/video/backlight/adp8860_bl.c: use kstrtoul()
The usage of strict_strtoul() is not preferred.  Thus, kstrtoul should be
used.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Michael Hennerich <michael.hennerich@analog.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-29 16:22:29 -07:00
Johan Hovold 7f26c970b4 backlight: add LM3533 backlight driver
Add sub-driver for the backlights on National Semiconductor / TI LM3533
lighting power chips.

The chip provides 256 brightness levels and ambient-light-sensor and pwm
input control.

[akpm@linux-foundation.org: fix warning]
[akpm@linux-foundation.org: fix the type of `mode']
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Rob Landley <rob@landley.net>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Jonathan Cameron <jic23@cam.ac.uk>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-29 16:22:29 -07:00
H Hartley Sweeten 1615d210db drivers/video/backlight/apple_bl.c: include header for exported symbol prototypes
Include the header to pickup the exported symbol prototype.

Quiets the sparse warning:

  warning: symbol 'apple_bl_register' was not declared. Should it be static?
  warning: symbol 'apple_bl_unregister' was not declared. Should it be static?

[akpm@linux-foundation.org: fix resulting build error]
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-29 16:22:29 -07:00
Inki Dae d54ad83f3d lcd: add callbacks for early fb event blank support
This patchset adds early fb blank feature that a callback of lcd panel
driver is called prior to specific fb driver's one.  In the case of
MIPI-DSI based video mode LCD Panel, for lcd power off, the power off
commands should be transferred to lcd panel with display and mipi-dsi
controller enabled because the commands is set to lcd panel at vsync porch
period.  and in opposite case, the callback of fb driver should be called
prior to lcd panel driver's one because of same issue.  Also if fb_blank
mode is changed to FB_BLANK_POWERDOWN then display controller would be
off(clock disable) but lcd panel would be still on.  at this time, you
could see some issue like sparkling on lcd panel because video clock to be
delivered to ldi module of lcd panel was disabled.  this issue could
occurs for all lcd panels.

The callback order is as the following:

at fb_blank function of fbmem.c
-> fb_notifier_call_chain(FB_EARLY_EVENT_BLANK)
       -> lcd panel driver's early_set_power()
-> info->fbops->fb_blank()
       -> spcefic fb driver's fb_blank()
-> fb_notifier_call_chain(FB_EVENT_BLANK)
       -> lcd panel driver's set_power()
   -> fb_notifier_call_chain(FB_R_EARLY_EVENT_BLANK) if
info->fops->fb_blank() was failed.

fb_notifier_call_chain(FB_R_EARLY_EVENT_BLANK) would be called to revert
the effects of previous FB_EARLY_EVENT_BLANK call.  and note that if
early_set_power() of lcd_ops is NULL then early fb blank callback would be
ignored.

This patch:

Add early_set_power and r_early_set_power callbacks.  early_set_power
callback is called prior to fb_blank() of fbmem.c and r_early_set_power
callback is called if fb_blank() was failed to revert the effects of the
early_set_power call of lcd panel driver.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-29 16:22:29 -07:00
Inki Dae bf05929f41 fbdev: add events for early fb event support
Add FB_EARLY_EVENT_BLANK and FB_R_EARLY_EVENT_BLANK event mode supports.
first, fb_notifier_call_chain() is called with FB_EARLY_EVENT_BLANK and
fb_blank() of specific fb driver is called and then
fb_notifier_call_chain() is called with FB_EVENT_BLANK again at
fb_blank().  and if fb_blank() was failed then fb_nitifier_call_chain()
would be called with FB_R_EARLY_EVENT_BLANK to revert the previous
effects.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-29 16:22:28 -07:00
Lars-Peter Clausen aa523a82ee blacklight: remove redundant spi driver bus initialization
In ancient times it was necessary to manually initialize the bus field of
an spi_driver to spi_bus_type.  These days this is done in
spi_driver_register() so we can drop the manual assignment.

The patch was generated using the following coccinelle semantic patch:
// <smpl>
@@
identifier _driver;
@@
struct spi_driver _driver = {
	.driver = {
-		.bus = &spi_bus_type,
	},
};
// </smpl>

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-29 16:22:28 -07:00
Emil Goode c895305e80 video: bfin_adv7393fb: Fix cleanup code
This patch fixes the cleanup code of the bfin_adv7393_fb_probe
function.

1) The resources were not freed in the order that we allocated them
   so we call dma_free_coherent() before it was allocated.
2) The labels weren't in the right place which also meant that we
   freed resources that weren't allocated.
3) We should free gpio_free(P_IDENT(P_PPI0_FS3)) before returning.
4) Lets change the label names into something more meaningful.

Signed-off-by: Emil Goode <emilgoode@gmail.com>
Acked-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-05-29 13:16:45 +00:00
Jingoo Han ddbcb289ca video: exynos_dp: reduce delay time when configuring video setting
This patch reduces delay time when configuring video setting,
which is helpful to reduce wakeup time during resume.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-05-29 13:16:15 +00:00
Jingoo Han 24db03a834 video: exynos_dp: move sw reset prioir to enabling sw defined function
The sw reset should be called prioir to enabling sw defined function,
according to datasheet.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-05-29 13:16:15 +00:00
Jingoo Han 4d10ecf86b video: exynos_dp: use devm_ functions
The devm_ functions allocate memory that is released when a driver
detaches. This makes the code smaller and a bit simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-05-29 13:16:15 +00:00
Dan Carpenter cc4401142c fb: handle NULL pointers in framebuffer release
This function is called with a potential NULL pointer in
picolcd_init_framebuffer() and it causes a static checker warning.  This
used to handle NULL pointers when the picolcd code was written, but a
couple months later we added the "info->apertures" dereference.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-05-29 13:00:03 +00:00
Florian Tobias Schandinat d85d135d8b Omapdss driver changes for 3.5 merge window.
Lots of normal development commits, but perhaps most notable changes are:
 
 * HDMI rework to properly decouple the HDMI audio part from the HDMI video part.
 * Restructure omapdss core driver so that it's possible to implement device
   tree support. This included changing how platform data is passed to the
   drivers, changing display device registration and improving the panel driver's
   ability to configure the underlying video output interface.
 * Basic support for DSI packet interleaving
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Merge tag 'omapdss-for-3.5' of git://github.com/tomba/linux into fbdev-next

Omapdss driver changes for 3.5 merge window.

Lots of normal development commits, but perhaps most notable changes are:

* HDMI rework to properly decouple the HDMI audio part from the HDMI video part.
* Restructure omapdss core driver so that it's possible to implement device
  tree support. This included changing how platform data is passed to the
  drivers, changing display device registration and improving the panel driver's
  ability to configure the underlying video output interface.
* Basic support for DSI packet interleaving
2012-05-27 20:58:20 +00:00
Linus Torvalds 2795343705 arm-soc: clock driver changes
The new clock subsystem was merged in linux-3.4 without any users, this
 now moves the first three platforms over to it: imx, mxs and spear.
 
 The series also contains the changes for the clock subsystem itself,
 since Mike preferred to have it together with the platforms that require
 these changes, in order to avoid interdependencies and conflicts.
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Merge tag 'clock' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull arm-soc clock driver changes from Olof Johansson:
 "The new clock subsystem was merged in linux-3.4 without any users,
  this now moves the first three platforms over to it: imx, mxs and
  spear.

  The series also contains the changes for the clock subsystem itself,
  since Mike preferred to have it together with the platforms that
  require these changes, in order to avoid interdependencies and
  conflicts."

Fix up trivial conflicts in arch/arm/mach-kirkwood/common.c (code
removed in one branch, added OF support in another) and
drivers/dma/imx-sdma.c (independent changes next to each other).

* tag 'clock' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (97 commits)
  clk: Fix CLK_SET_RATE_GATE flag validation in clk_set_rate().
  clk: Provide dummy clk_unregister()
  SPEAr: Update defconfigs
  SPEAr: Add SMI NOR partition info in dts files
  SPEAr: Switch to common clock framework
  SPEAr: Call clk_prepare() before calling clk_enable
  SPEAr: clk: Add General Purpose Timer Synthesizer clock
  SPEAr: clk: Add Fractional Synthesizer clock
  SPEAr: clk: Add Auxiliary Synthesizer clock
  SPEAr: clk: Add VCO-PLL Synthesizer clock
  SPEAr: Add DT bindings for SPEAr's timer
  ARM i.MX: remove now unused clock files
  ARM: i.MX6: implement clocks using common clock framework
  ARM i.MX35: implement clocks using common clock framework
  ARM i.MX5: implement clocks using common clock framework
  ARM: Kirkwood: Replace clock gating
  ARM: Orion: Audio: Add clk/clkdev support
  ARM: Orion: PCIE: Add support for clk
  ARM: Orion: XOR: Add support for clk
  ARM: Orion: CESA: Add support for clk
  ...
2012-05-26 12:42:29 -07:00
Linus Torvalds f2fde3a65e Merge branch 'drm-core-next' of git://people.freedesktop.org/~airlied/linux
Pull main drm updates from Dave Airlie:
 "This is the main merge window request for the drm.

  It's big, but jam packed will lots of features and of course 0
  regressions.  (okay maybe there'll be one).

  Highlights:

   - new KMS drivers for server GPU chipsets: ast, mgag200 and cirrus
     (qemu only).  These drivers use the generic modesetting drivers.

   - initial prime/dma-buf support for i915, nouveau, radeon, udl and
     exynos

   - switcheroo audio support: so GPUs with HDMI can turn off the sound
     driver without crashing stuff.

   - There are some patches drifting outside drivers/gpu into x86 and
     EFI for better handling of multiple video adapters in Apple Macs,
     they've got correct acks except one trivial fixup.

   - Core:
	edid parser has better DMT and reduced blanking support,
	crtc properties,
	plane properties,

   - Drivers:
	exynos: add 2D core accel support, prime support, hdmi features
	intel: more Haswell support, initial Valleyview support, more
	    hdmi infoframe fixes, update MAINTAINERS for Daniel, lots of
	    cleanups and fixes
	radeon: more HDMI audio support, improved GPU lockup recovery
	    support, remove nested mutexes, less memory copying on PCIE, fix
	    bus master enable race (kexec), improved fence handling
	gma500: cleanups, 1080p support, acpi fixes
	nouveau: better nva3 memory reclocking, kepler accel (needs
	    external firmware rip), async buffer moves on nv84+ hw.

  I've some more dma-buf patches that rely on the dma-buf merge for vmap
  stuff, and I've a few fixes building up, but I'd decided I'd better
  get rid of the main pull sooner rather than later, so the audio guys
  are also unblocked."

Fix up trivial conflict due to some duplicated changes in
drivers/gpu/drm/i915/intel_ringbuffer.c

* 'drm-core-next' of git://people.freedesktop.org/~airlied/linux: (605 commits)
  drm/nouveau/nvd9: Fix GPIO initialisation sequence.
  drm/nouveau: Unregister switcheroo client on exit
  drm/nouveau: Check dsm on switcheroo unregister
  drm/nouveau: fix a minor annoyance in an output string
  drm/nouveau: turn a BUG into a WARN
  drm/nv50: decode PGRAPH DATA_ERROR = 0x24
  drm/nouveau/disp: fix dithering not being enabled on some eDP macbooks
  drm/nvd9/copy: initialise copy engine, seems to work like nvc0
  drm/nvc0/ttm: use copy engines for async buffer moves
  drm/nva3/ttm: use copy engine for async buffer moves
  drm/nv98/ttm: add in a (disabled) crypto engine buffer copy method
  drm/nv84/ttm: use crypto engine for async buffer copies
  drm/nouveau/ttm: untangle code to support accelerated buffer moves
  drm/nouveau/fbcon: use fence for sync, rather than notifier
  drm/nv98/crypt: non-stub implementation of the engine hooks
  drm/nouveau/fifo: turn all fifo modules into engine modules
  drm/nv50/graph: remove ability to do interrupt-driven context switching
  drm/nv50: remove manual context unload on context destruction
  drm/nv50: remove execution engine context saves on suspend
  drm/nv50/fifo: use hardware channel kickoff functionality
  ...
2012-05-24 12:42:54 -07:00
Linus Torvalds e8650a0823 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial updates from Jiri Kosina:
 "As usual, it's mostly typo fixes, redundant code elimination and some
  documentation updates."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (57 commits)
  edac, mips: don't change code that has been removed in edac/mips tree
  xtensa: Change mail addresses of Hannes Weiner and Oskar Schirmer
  lib: Change mail address of Oskar Schirmer
  net: Change mail address of Oskar Schirmer
  arm/m68k: Change mail address of Sebastian Hess
  i2c: Change mail address of Oskar Schirmer
  net: Fix tcp_build_and_update_options comment in struct tcp_sock
  atomic64_32.h: fix parameter naming mismatch
  Kconfig: replace "--- help ---" with "---help---"
  c2port: fix bogus Kconfig "default no"
  edac: Fix spelling errors.
  qla1280: Remove redundant NULL check before release_firmware() call
  remoteproc: remove redundant NULL check before release_firmware()
  qla2xxx: Remove redundant NULL check before release_firmware() call.
  aic94xx: Get rid of redundant NULL check before release_firmware() call
  tehuti: delete redundant NULL check before release_firmware()
  qlogic: get rid of a redundant test for NULL before call to release_firmware()
  bna: remove redundant NULL test before release_firmware()
  tg3: remove redundant NULL test before release_firmware() call
  typhoon: get rid of redundant conditional before all to release_firmware()
  ...
2012-05-22 19:22:50 -07:00
Linus Torvalds a481991467 USB 3.5-rc1 pull request
Here is the big USB 3.5-rc1 pull request for the 3.5-rc1 merge window.
 
 It's touches a lot of different parts of the kernel, all USB drivers,
 due to some API cleanups (getting rid of the ancient err() macro) and
 some changes that are needed for USB 3.0 power management updates.
 
 There are also lots of new drivers, pimarily gadget, but others as well.
 We deleted a staging driver, which was nice, and finally dropped the
 obsolete usbfs code, which will make Al happy to never have to touch
 that again.
 
 There were some build errors in the tree that linux-next found a few
 days ago, but those were fixed by the most recent changes (all were due
 to us not building with CONFIG_PM disabled.)
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB 3.5-rc1 changes from Greg Kroah-Hartman:
 "Here is the big USB 3.5-rc1 pull request for the 3.5-rc1 merge window.

  It's touches a lot of different parts of the kernel, all USB drivers,
  due to some API cleanups (getting rid of the ancient err() macro) and
  some changes that are needed for USB 3.0 power management updates.

  There are also lots of new drivers, pimarily gadget, but others as
  well.  We deleted a staging driver, which was nice, and finally
  dropped the obsolete usbfs code, which will make Al happy to never
  have to touch that again.

  There were some build errors in the tree that linux-next found a few
  days ago, but those were fixed by the most recent changes (all were
  due to us not building with CONFIG_PM disabled.)

  Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"

* tag 'usb-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (477 commits)
  xhci: Fix DIV_ROUND_UP compile error.
  xhci: Fix compile with CONFIG_USB_SUSPEND=n
  USB: Fix core compile with CONFIG_USB_SUSPEND=n
  brcm80211: Fix compile error for .disable_hub_initiated_lpm.
  Revert "USB: EHCI: work around bug in the Philips ISP1562 controller"
  MAINTAINERS: Add myself as maintainer to the USB PHY Layer
  USB: EHCI: fix command register configuration lost problem
  USB: Remove races in devio.c
  USB: ehci-platform: remove update_device
  USB: Disable hub-initiated LPM for comms devices.
  xhci: Add Intel U1/U2 timeout policy.
  xhci: Add infrastructure for host-specific LPM policies.
  USB: Add macros for interrupt endpoint types.
  xhci: Reserve one command for USB3 LPM disable.
  xhci: Some Evaluate Context commands must succeed.
  USB: Disable USB 3.0 LPM in critical sections.
  USB: Add support to enable/disable USB3 link states.
  USB: Allow drivers to disable hub-initiated LPM.
  USB: Calculate USB 3.0 exit latencies for LPM.
  USB: Refactor code to set LPM support flag.
  ...

Conflicts:
	arch/arm/mach-exynos/mach-nuri.c
	arch/arm/mach-exynos/mach-universal_c210.c
	drivers/net/wireless/ath/ath6kl/usb.c
2012-05-22 15:50:46 -07:00
Linus Torvalds 813a95e5b4 arm-soc: soc-specific pinctrl changes
With this, five platforms are moving to the relatively new pinctrl
 subsystem for their pin management, replacing the older soc specific
 in-kernel interfaces with common code.
 
 There is quite a bit of net addition of code for each platform being
 added to the pinctrl subsystem. but the payback comes later when adding
 new boards can be done by only providing new device trees instead.
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Merge tag 'pinctrl' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull arm soc-specific pinctrl changes from Olof Johansson:
 "With this, five platforms are moving to the relatively new pinctrl
  subsystem for their pin management, replacing the older soc specific
  in-kernel interfaces with common code.

  There is quite a bit of net addition of code for each platform being
  added to the pinctrl subsystem.  But the payback comes later when
  adding new boards can be done by only providing new device trees
  instead."

Fix up trivial conflicts in arch/arm/mach-ux500/{Makefile,board-mop500.c}

* tag 'pinctrl' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (61 commits)
  mtd: nand: gpmi: fix compile error caused by pinctrl call
  ARM: PRIMA2: select PINCTRL and PINCTRL_SIRF in Kconfig
  ARM: nomadik: enable PINCTRL_NOMADIK where needed
  ARM: mxs: enable pinctrl support
  video: mxsfb: adopt pinctrl support
  ASoC: mxs-saif: adopt pinctrl support
  i2c: mxs: adopt pinctrl support
  mtd: nand: gpmi: adopt pinctrl support
  mmc: mxs-mmc: adopt pinctrl support
  serial: mxs-auart: adopt pinctrl support
  serial: amba-pl011: adopt pinctrl support
  spi/imx: adopt pinctrl support
  i2c: imx: adopt pinctrl support
  can: flexcan: adopt pinctrl support
  net: fec: adopt pinctrl support
  ARM: ux500: switch MSP to using pinctrl for pins
  ARM: ux500: alter MSP registration to return a device pointer
  ARM: ux500: switch to using pinctrl for uart0
  ARM: ux500: delete custom pin control system
  ARM: ux500: switch over to Nomadik pinctrl driver
  ...
2012-05-22 09:39:42 -07:00
Linus Torvalds 9bc747bea5 arm-soc: First batch of cleanups
These cleanups are basically all over the place. The idea is to collect
 changes with minimal impact but large number of changes so we can avoid
 them from distracting in the diffstat in the other series.
 
 A significant number of lines get removed here, in particular because
 the ixp2000 and ixp23xx platforms get removed. These have never been
 extremely popular and have fallen into disuse over time with no active
 maintainer taking care of them. The u5500 soc never made it into a
 product, so we are removing it from the ux500 platform.
 
 Many good cleanups also went into the at91 and omap platforms, as has
 been the case for a number of releases.
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Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull first batch of arm-soc cleanups from Olof Johansson:
 "These cleanups are basically all over the place.  The idea is to
  collect changes with minimal impact but large number of changes so we
  can avoid them from distracting in the diffstat in the other series.

  A significant number of lines get removed here, in particular because
  the ixp2000 and ixp23xx platforms get removed.  These have never been
  extremely popular and have fallen into disuse over time with no active
  maintainer taking care of them.  The u5500 soc never made it into a
  product, so we are removing it from the ux500 platform.

  Many good cleanups also went into the at91 and omap platforms, as has
  been the case for a number of releases."

Trivial modify-delete conflicts in arch/arm/mach-{ixp2000,ixp23xx}

* tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (152 commits)
  ARM: clps711x: Cleanup IRQ handling
  ARM clps711x: Removed unused header mach/time.h
  ARM: clps711x: Added note about support EP731x CPU to Kconfig
  ARM: clps711x: Added missing register definitions
  ARM: clps711x: Used own subarch directory for store header file
  Dove: Fix Section mismatch warnings
  ARM: orion5x: ts78xx debugging changes
  ARM: orion5x: remove PM dependency from ts78xx
  ARM: orion5x: ts78xx fix NAND resource off by one
  ARM: orion5x: ts78xx whitespace cleanups
  Orion5x: Fix Section mismatch warnings
  Orion5x: Fix warning: struct pci_dev declared inside paramter list
  ARM: clps711x: Combine header files into one for clps711x-targets
  ARM: S3C24XX: Use common macro to define resources on mach-qt2410.c
  ARM: S3C24XX: Use common macro to define resources on mach-osiris.c
  ARM: EXYNOS: Adapt to cpuidle core time keeping and irq enable
  ARM: S5PV210: Use common macro to define resources on mach-smdkv210.c
  ARM: S5PV210: Use common macro to define resources on dev-audio.c
  ARM: S5PC100: Use common macro to define resources on dev-audio.c
  ARM: S5P64X0: Use common macro to define resources on dev-audio.c
  ...
2012-05-22 09:23:24 -07:00
Ricardo Neri e92a5b28f7 OMAPDSS: HDMI: OMAP4: Update IRQ flags for the HPD IRQ request
genirq requires that the IRQ requests that do not provided a handler to
use the IRQF_ONESHOT flag. This is to prevent situations in which the irq line
is reenabled while the interrupt is still asserted. While this situation may
not happen in edge type interrupts, genirq still requires to use IRQF_ONESHOT.

Also, remove the IRQF_DISABLED as the flag is now a NOOP and has been
deprecated.

Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-05-22 11:00:09 +03:00
Archit Taneja c808ab9c82 OMAPDSS: Apply VENC timings even if panel is disabled
The VENC interfaces uses it's venc_set_timing() function to take in a new set
of timings. If the panel is disabled, it does not disable and re-enable the
interface. Currently, the manager timings are applied in venc_power_on(), these
are not called by set_timings if the panel is disabled. When checking overlay
and manager data, the DSS driver uses the last applied manager timings, and not
the timings held by omap_dss_device struct. Hence, there is a need to apply the
new manager timings even if the panel is disabled.

Apply the manager timings if the VENC panel is disabled.

This is similar to the commit below which fixed the same issue for HDMI/DPI
interfaces:

fcc3661990

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-05-22 11:00:08 +03:00
Archit Taneja 2aefad49d8 OMAPDSS: VENC/DISPC: Delay dividing Y resolution for managers connected to VENC
DSS2 driver uses the timings in manager's private data to check the validity of
overlay and manager infos written by the user. For VENC interface, we divide the
Y resolution by half when writing to the DISPC_DIGIT_SIZE register as the
content is interlaced. However, the height of the manager/display with respect
to the content shown through VENC still remains the same.

The VENC driver divides the y_res parameter in omap_video_timings by half, and
then applies the configuration. This leads to manager's private data storing
the wrong Y resolution. Hence, overlay related checks fail.

Ensure that manager's private data stores the original timings, and the Y
resolution is halved only when we write to the DISPC register. This is a hack,
the proper solution would be to pass some sort of interlace parameter which
makes the call whether we should divide y_res or not.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-05-22 11:00:01 +03:00
Chandrabhanu Mahapatra 65e006ff4b OMAPDSS: DISPC: Support rotation through TILER
TILER is a block in OMAP4's DMM which lets DSS fetch frames in a rotated manner.
Physical memory can be mapped to a portion of OMAP's system address space called
TILER address space. The TILER address space is split into 8 views. Each view
represents a rotated or mirrored form of the mapped physical memory. When a
DISPC overlay's base address is programmed to one of these views, the TILER
fetches the pixels according to the orientation of the view. A view is further
split into 4 containers, each container holds elements of a particular size.
Rotation can be achieved at the granularity of elements in the container. For
more information on TILER, refer to the Memory Subsytem section in OMAP4 TRM.
Rotation type TILER has been added which is used to exploit the capabilities of
these 8 views for performing various rotations.

When fetching from addresses mapped to TILER space, the DISPC DMA can fetch
pixels in either 1D or 2D bursts. The fetch depends on which TILER container we
are accessing. Accessing 8, 16 and 32 bit sized containers requires 2D bursts,
and page mode sized containers require 1D bursts.

The DSS2 user is expected to provide the Tiler address of the view that it is
interested in. This is passed to the paddr and p_uv_addr parameters in
omap_overlay_info. It is also expected to provide the stride value based on the
view's orientation and container type, this should be passed to the screen_width
parameter of omap_overlay_info. In calc_tiler_rotation_offset screen_width is
used to calculate the required row_inc for DISPC. x_predecim and y_predecim are
also used to calculate row_inc and pix_inc thereby adding predecimation support
for TILER.

Signed-off-by: Chandrabhanu Mahapatra <cmahapatra@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-05-22 10:59:15 +03:00
Tomi Valkeinen 3cb6a1b967 OMAPDSS: VRFB: remove compiler warnings when CONFIG_BUG=n
If CONFIG_BUG is not enabled, BUG() does not stop the execution. Many
places in code expect the execution to stop, and this causes compiler
warnings about uninitialized variables and returning from a non-void
function without a return value.

This patch fixes the warnings by initializing the variables and
returning properly after BUG() lines. However, the behaviour is still
undefined after the BUG, but this is the choice the user makes when
using CONFIG_BUG=n.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-05-22 10:59:15 +03:00
Tomi Valkeinen 4a75cb857d OMAPFB: remove compiler warnings when CONFIG_BUG=n
If CONFIG_BUG is not enabled, BUG() does not stop the execution. Many
places in code expect the execution to stop, and this causes compiler
warnings about uninitialized variables and returning from a non-void
function without a return value.

This patch fixes the warnings by initializing the variables and
returning properly after BUG() lines. However, the behaviour is still
undefined after the BUG, but this is the choice the user makes when
using CONFIG_BUG=n.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-05-22 10:59:15 +03:00
Tomi Valkeinen c6eee968d4 OMAPDSS: remove compiler warnings when CONFIG_BUG=n
If CONFIG_BUG is not enabled, BUG() does not stop the execution. Many
places in code expect the execution to stop, and this causes compiler
warnings about uninitialized variables and returning from a non-void
function without a return value.

This patch fixes the warnings by initializing the variables and
returning properly after BUG() lines. However, the behaviour is still
undefined after the BUG, but this is the choice the user makes when
using CONFIG_BUG=n.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-05-22 10:59:14 +03:00
Tomi Valkeinen 36377357db OMAPDSS: DISPC: fix usage of dispc_ovl_set_accu_uv
Commit 05dd0f5308 ("OMAPDSS: DISPC: Update
Accumulator configuration for chroma plane") adds
dispc_ovl_set_accu_uv() function that sets the accu, but the function
only handles YUV and NV12 modes, and BUGs otherwise.

The patch also adds a call to the function, but unfortunately the place
of call was such that the mode could be other than YUV or NV12, thus
crashing the driver.

This patchs moves the call to a slightly later spot, at which point only
YUV and NV12 modes are handled.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Chandrabhanu Mahapatra <cmahapatra@ti.com>
2012-05-22 10:59:14 +03:00
Tomi Valkeinen 3568f2a46f OMAPDSS: use DSI_FIFO_BUG workaround only for manual update displays
There is a problem related to DSS FIFO thresholds and power management
on OMAP3. It seems that when the full PM hits in, we get underflows. The
core reason is unknown, but after experiments it looks like only
particular FIFO thresholds work correctly.

This bug is related to an earlier patch, which added special FIFO
threshold configuration for OMAP3, because DSI command mode output
didn't work with the normal threshold configuration.

However, as the above work-around worked fine for other output types
also, we currently always configure thresholds in this special way on
OMAP3. In theory there should be negligible difference with this special
way and the standard way. The first paragraph explains what happens in
practice.

This patch changes the driver to use the special threshold configuration
only when the output is a manual update display on OMAP3. This does
include RFBI displays also, and although it hasn't been tested (no
boards using RFBI) I suspect the similar behaviour is present there
also, as the DISPC side should work similarly for DSI command mode and
RFBI.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Joe Woodward <jw@terrafix.co.uk>
2012-05-22 10:59:13 +03:00
Laurent Pinchart 72c04af9a2 fbdev: sh_mobile_lcdc: Don't confuse line size with pitch
When using the MERAM the LCDC line size needs to be programmed with a
MERAM-specific value different than the real frame buffer pitch. Fix it.

Reported-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: stable@vger.kernel.org  # for 3.4
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-21 20:59:32 -07:00
Archit Taneja 6f28c2964b OMAPDSS: DSI: Support command mode interleaving during video mode blanking periods
DSI supports interleaving of command mode packets during the HSA, HFP, HBP and
BLLP blanking intervals in a video mode stream. This is useful as a user may
want to read or change the configuration of a panel without stopping the video
stream.

On OMAP DSI, we can queue HS or LP command mode packets in the TX FIFO, and
the DSI HW takes care of interleaving this data during the one of the blanking
intervals. The DSI HW needs to be programmed with the maximum amount of data
that can be interleaved in a particular blanking period. A blanking period
cannot be used to send command mode data for it's complete duration, there is
some amount of time required for the DSI data and clock lanes to transition
to the desired LP or HS state.

Based on the state of the lanes at the beginning and end of the blanking period,
we have different scenarios, with each scenario having a different value of time
required to transition to HS or LP. Refer to the section 'Interleaving Mode' in
OMAP TRM for more info on the scenarios and the equations to calculate the time
required for HS or LP transitions.

We use the scenarios which takes the maximum time for HS or LP transition, this
gives us the minimum amount of time that can be used to interleave command mode
data. The amount of data that can be sent during this minimum time is calculated
for command mode packets both in LP and HS. These are written to the registers
DSI_VM_TIMING4 to DSI_VM_TIMING6.

The calculations don't take into account the time required of transmitting BTA
when doing a DSI read, or verifying if a DSI write went through correctly. Until
these latencies aren't considered, the behaviour of DSI is unpredictable when
a BTA is interleaved during a blanking period. Enhancement of these calculations
is a TODO item.

The calculations are derived from DSI parameter calculation tools written by
Sebastien Fagard <s-fagard@ti.com>

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-05-21 12:21:18 +03:00
Greg Kroah-Hartman 32535bd563 Merge branch 'v3.5-for-usb' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into usb-next 2012-05-17 09:14:21 -07:00
Chandrabhanu Mahapatra 05dd0f5308 OMAPDSS: DISPC: Update Accumulator configuration for chroma plane
DISPC has two accumulator registers DISPC_VIDp_ACCU_0 and DISPC_VIDp_ACCU_1 each
with horizontal and vertical bit fields. The bit fields can take values in the
range of -1024 to 1023. Based on bit field values DISPC decides on which one out
of 8 phases the filtering starts. DISPC_VIDp_ACCU_0 is used for progressive
output and for interlaced output both DISPC_VIDp_ACCU_0 and DISPC_VIDp_ACCU_1
are used.

The current accumulator values in DISPC scaling logic for chroma plane takes
default values for all color modes and rotation types. So, the horizontal and
vertical up and downsampling accumulator bit field values have been updated for
better performance.

Signed-off-by: Chandrabhanu Mahapatra <cmahapatra@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-05-15 13:51:56 +03:00
Arnd Bergmann 4f5a9fd341 Merge branch 'imx/pinctrl' into imx/clock
Conflicts:
	drivers/mmc/host/sdhci-esdhc-imx.c
	drivers/net/ethernet/freescale/fec.c
	drivers/spi/spi-imx.c
	drivers/tty/serial/imx.c

This resolves dependencies between the pinctrl and clock changes
in imx.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-05-14 15:30:52 +02:00
Timur Tabi 5e7b911f9a drivers/video: fsl-diu-fb: don't initialize the THRESHOLDS registers
The THRESHOLDS register configures thresholds for two interrupts, but
these interrupts are not used in the DIU driver.  An early version of the
driver may have used the "lines before vsync" interrupt, which requires
the LS_BF_VS of THRESHOLDS to be initialized.

Unfortunately, the initialization of this register does not do a
read-modify-write to set only LS_BF_VS.  On the MPC8610, the value
written is correct.  On other chips, like the P1022, the value overwrites
some reserved bits.  This results in a performance drop on the P1022.

Since the default value is acceptable as-is on all SOCs, we should just
avoid touching this register.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-05-13 13:08:56 +00:00
Donghwa Lee 24bb7a6efc video: exynos mipi dsi: support reverse panel type
This patch adds panel_reverse variable to support reversed s6e8ax0 panel
type.

Signed-off-by: Donghwa Lee <dh09.lee@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-05-13 13:08:23 +00:00
Sylwester Nawrocki 82a50195cb video: exynos mipi dsi: Properly interpret the interrupt source flags
Rework the interrupt handler so the RX_DONE, FIFO_EMPTY interrupts are
properly detected. This prevents missing the interrupts when there are
other bits set in the INTSRC register than just RX_DONE and FIFO_EMPTY.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Donghwa Lee <dh09.lee@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-05-13 13:08:23 +00:00