Commit Graph

12 Commits

Author SHA1 Message Date
Lucas Stach b5b457b33d gpu: ipu-di: silence videomode logspam
Adapting the videomode to the hardware constraints is something that
can and must happen during normal operation and isn't something that
the user can avoid. So printing a warning each time it happens isn't
helpful.

Demote this message to the debug level.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-11-09 10:41:14 +01:00
Liu Ying 33f1423530 drm/imx: atomic phase 1: Use transitional atomic CRTC and plane helpers
Use the drm_plane_helper_update/disable() and drm_helper_crtc_mode_set()
transitional atomic helpers.  The crtc->mode_set_nofb callback is added
so that the primary plane is no longer tied to the CRTC.  Check/update
logics are separated to make sure crtc->mode_set_nofb and plane->atomic_update
are always successful.  Also, some necessary logics are tweaked for a smooth
transition.

Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-07-12 18:23:47 +02:00
Russell King aefa627fa3 gpu: imx: fix support for interlaced modes
The support for interlaced video modes seems to be broken; we don't use
anything other than the vtotal/htotal from the timing information to
define the various sync counters.

Freescale patches for interlaced video support contain an alternative
sync counter setup, which we include here.  This setup produces the
hsync and vsync via the normal counter 2 and 3, but moves the display
enable signal from counter 5 to counter 6.  Therefore, we need to
change the display controller setup as well.

The corresponding Freescale patches for this change are:
  iMX6-HDMI-support-interlaced-display-mode.patch
  IPU-fine-tuning-the-interlace-display-timing-for-CEA.patch

This produces a working interlace format output from the IPU.

Tested-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-10-06 19:58:30 +01:00
Russell King f94ab604db gpu: imx: simplify sync polarity setting
Use a function to convert the sync pin to a bit mask for the DI_GENERAL
register, and move this out of the interlace/non-interlace path to the
common path.

Tested-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-10-06 19:58:21 +01:00
Philipp Zabel f7089d923e gpu: ipu-v3: limit pixel clock divider to 8-bits
The DI pixel clock divider bit field is only 8 bits wide for the
integer part, so limit the divider to the 1...255 interval before
deciding whether the internal clock can be used and before writing
to the register.

Reported-by: Felix Mellmann <felix.mellmann@gmail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2015-03-31 12:03:54 +02:00
Philipp Zabel 89ce4b0f4e gpu: ipu-v3: do not divide by zero if the pixel clock is too large
Even if an unsupported mode with a pixel clock larger than two times the
264 MHz IPU HSP clock is set, don't divide by zero.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2015-02-23 17:18:59 +01:00
Steve Longerbeam 503f1631ae gpu: ipu-di: Switch to DIV_ROUND_CLOSEST for DI clock divider calc
We can use the DIV_ROUND_CLOSEST() macro when calculating the DI
clock divider, rounded to nearest int.

Suggested-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2015-01-07 19:15:04 +01:00
Steve Longerbeam b6835a719a gpu: ipu-v3: Use videomode in struct ipu_di_signal_cfg
This patch changes struct ipu_di_signal_cfg to use struct videomode
to define video timings and flags.

Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2015-01-07 19:15:03 +01:00
Steve Longerbeam 73099f12b0 gpu: ipu-di: remove some non-functional code
h_total and v_total were calculated in ipu_di_init_sync_panel()
but never actually used. Remove.

Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2015-01-07 19:12:07 +01:00
Jiada Wang 6541d71082 gpu: ipu-di: Add ipu_di_adjust_videomode()
On some monitors, high resolution modes are not working, exhibiting
pixel column truncation problems (for example, 1280x1024 displays as
1280x1022).

The function ipu_di_adjust_videomode() aims to fix these issues by
adjusting a passed videomode to IPU restrictions. The function can
be called from the drm_crtc_helper_funcs->mode_fixup() methods.

Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
Signed-off-by: Deepak Das <deepak_das@mentor.com>
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2015-01-07 19:12:07 +01:00
Linus Torvalds 682b7c1c8e Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
Pull drm updates from Dave Airlie:
 "This is the main drm merge window pull request, changes all over the
  place, mostly normal levels of churn.

  Highlights:

  Core drm:
     More cleanups, fix race on connector/encoder naming, docs updates,
     object locking rework in prep for atomic modeset

  i915:
     mipi DSI support, valleyview power fixes, cursor size fixes,
     execlist refactoring, vblank improvements, userptr support, OOM
     handling improvements

  radeon:
     GPUVM tuning and large page size support, gart fixes, deep color
     HDMI support, HDMI audio cleanups

  nouveau:
     - displayport rework should fix lots of issues
     - initial gk20a support
     - gk110b support
     - gk208 fixes

  exynos:
     probe order fixes, HDMI changes, IPP consolidation

  msm:
     debugfs updates, misc fixes

  ast:
     ast2400 support, sync with UMS driver

  tegra:
     cleanups, hdmi + hw cursor for Tegra 124.

  panel:
     fixes existing panels add some new ones.

  ipuv3:
     moved from staging to drivers/gpu"

* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (761 commits)
  drm/nouveau/disp/dp: fix tmds passthrough on dp connector
  drm/nouveau/dp: probe dpcd to determine connectedness
  drm/nv50-: trigger update after all connectors disabled
  drm/nv50-: prepare for attaching a SOR to multiple heads
  drm/gf119-/disp: fix debug output on update failure
  drm/nouveau/disp/dp: make use of postcursor when its available
  drm/g94-/disp/dp: take max pullup value across all lanes
  drm/nouveau/bios/dp: parse lane postcursor data
  drm/nouveau/dp: fix support for dpms
  drm/nouveau: register a drm_dp_aux channel for each dp connector
  drm/g94-/disp: add method to power-off dp lanes
  drm/nouveau/disp/dp: maintain link in response to hpd signal
  drm/g94-/disp: bash and wait for something after changing lane power regs
  drm/nouveau/disp/dp: split link config/power into two steps
  drm/nv50/disp: train PIOR-attached DP from second supervisor
  drm/nouveau/disp/dp: make use of existing output data for link training
  drm/gf119/disp: start removing direct vbios parsing from supervisor
  drm/nv50/disp: start removing direct vbios parsing from supervisor
  drm/nouveau/disp/dp: maintain receiver caps in response to hpd signal
  drm/nouveau/disp/dp: create subclass for dp outputs
  ...
2014-06-12 11:32:30 -07:00
Philipp Zabel 39b9004d1f gpu: ipu-v3: Move i.MX IPUv3 core driver out of staging
The i.MX Image Processing Unit (IPU) contains a number of image processing
blocks that sit right in the middle between DRM and V4L2. Some of the modules,
such as Display Controller, Processor, and Interface (DC, DP, DI) or CMOS
Sensor Interface (CSI) and their FIFOs could be assigned to either framework,
but others, such as the dma controller (IDMAC) and image converter (IC) can
be used by both.
The IPUv3 core driver provides an internal API to access the modules, to be
used by both DRM and V4L2 IPUv3 drivers.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-04 11:06:52 +02:00