When handling inbound packets, the two halves of the sequence number
stored on the skb are already in network order.
Fixes: 000ae7b269 ("esp6: Switch to new AEAD interface")
Signed-off-by: Tobias Brunner <tobias@strongswan.org>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
When handling inbound packets, the two halves of the sequence number
stored on the skb are already in network order.
Fixes: 7021b2e1cd ("esp4: Switch to new AEAD interface")
Signed-off-by: Tobias Brunner <tobias@strongswan.org>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
We grab the struct_mutex in intel_crtc_page_flip, but if we are wedged
or a reset is in progress we bail early but never seem to actually
release the lock.
Fixes: 7f1847ebf4 ("drm/i915: Simplify checking of GPU reset_counter in display pageflips")
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161128103648.9235-1-matthew.auld@intel.com
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: <stable@vger.kernel.org> # v4.7+
(cherry picked from commit ddbb271aea)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
On the DMA mapping error path, sg may be NULL (it has already been
marked as the last scatterlist entry), and we should avoid dereferencing
it again.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: e227330223 ("drm/i915: avoid leaking DMA mappings")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Imre Deak <imre.deak@intel.com>
Cc: stable@vger.kernel.org
Link: http://patchwork.freedesktop.org/patch/msgid/20161114112930.2033-1-chris@chris-wilson.co.uk
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
(cherry picked from commit b17993b7b2)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
It doesn't support to run 32bit 'ip' to set xfrm objdect on 64bit host.
But the return value is unknown for user program:
ip xfrm policy list
RTNETLINK answers: Unknown error 524
Replace ENOTSUPP with EOPNOTSUPP:
ip xfrm policy list
RTNETLINK answers: Operation not supported
Signed-off-by: Yi Zhao <yi.zhao@windriver.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Big thing is that drm-misc is now officially a group maintainer/committer
model thing, with MAINTAINERS suitably updated. Otherwise just the usual
pile of misc things all over, nothing that stands out this time around.
* tag 'drm-misc-next-2016-11-29' of git://anongit.freedesktop.org/git/drm-misc: (33 commits)
drm: Introduce drm_framebuffer_assign()
drm/bridge: adv7511: Enable the audio data and clock pads on adv7533
drm/bridge: adv7511: Add Audio support
drm/edid: Consider alternate cea timings to be the same VIC
drm/atomic: Constify drm_atomic_crtc_needs_modeset()
drm: bridge: dw-hdmi: add ASoC dependency
drm: Fix shift operations for drm_fb_helper::drm_target_preferred()
drm: Avoid NULL dereference for DRM_LEGACY debug message
drm: Use u64_to_user_ptr() helper for blob ioctls
drm: Fix conflicting macro parameter in drm_mm_for_each_node_in_range()
drm: Fixup kernel doc for driver->gem_create_object
drm/hisilicon/hibmc: mark PM functions __maybe_unused
drm/hisilicon/hibmc: Checking for NULL instead of IS_ERR()
drm: bridge: add DesignWare HDMI I2S audio support
drm: Check against color expansion in drm_mm_reserve_node()
drm: Define drm_mm_for_each_node_in_range()
drm/doc: Fix links in drm_property.c
MAINTAINERS: Add link to drm-misc documentation
vgaarb: use valid dev pointer in vgaarb_info()
drm/atomic: Unconfuse the old_state mess in commmit_tail
...
Final 4.10 updates:
- fine-tune fb flushing and tracking (Chris Wilson)
- refactor state check dumper code for more conciseness (Tvrtko)
- roll out dev_priv all over the place (Tvrkto)
- finally remove __i915__ magic macro (Tvrtko)
- more gvt bugfixes (Zhenyu&team)
- better opregion CADL handling (Jani)
- refactor/clean up wm programming (Maarten)
- gpu scheduler + priority boosting for flips as first user (Chris
Wilson)
- make fbc use more atomic (Paulo)
- initial kvm-gvt framework, but not yet complete (Zhenyu&team)
* tag 'drm-intel-next-2016-11-21' of git://anongit.freedesktop.org/git/drm-intel: (127 commits)
drm/i915: Update DRIVER_DATE to 20161121
drm/i915: Skip final clflush if LLC is coherent
drm/i915: Always flush the dirty CPU cache when pinning the scanout
drm/i915: Don't touch NULL sg on i915_gem_object_get_pages_gtt() error
drm/i915: Check that each request phase is completed before retiring
drm/i915: i915_pages_create_for_stolen should return err ptr
drm/i915: Enable support for nonblocking modeset
drm/i915: Be more careful to drop the GT wakeref
drm/i915: Move frontbuffer CS write tracking from ggtt vma to object
drm/i915: Only dump dp_m2_n2 configuration when drrs is used
drm/i915: don't leak global_timeline
drm/i915: add i915_address_space_fini
drm/i915: Add a few more sanity checks for stolen handling
drm/i915: Waterproof verification of gen9 forcewake table ranges
drm/i915: Introduce enableddisabled helper
drm/i915: Only dump possible panel fitter config for the platform
drm/i915: Only dump scaler config where supported
drm/i915: Compact a few pipe config debug lines
drm/i915: Don't log pipe config kernel pointer and duplicated pipe name
drm/i915: Dump FDI config only where applicable
...
drm/qxl: various bugfixes and cleanups,
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Merge tag 'drm-qemu-20161121' of git://git.kraxel.org/linux into drm-next
drm/virtio: fix busid in a different way, allocate more vbufs.
drm/qxl: various bugfixes and cleanups,
* tag 'drm-qemu-20161121' of git://git.kraxel.org/linux: (224 commits)
drm/virtio: allocate some extra bufs
qxl: Allow resolution which are not multiple of 8
qxl: Don't notify userspace when monitors config is unchanged
qxl: Remove qxl_bo_init() return value
qxl: Call qxl_gem_{init, fini}
qxl: Add missing '\n' to qxl_io_log() call
qxl: Remove unused prototype
qxl: Mark some internal functions as static
Revert "drm: virtio: reinstate drm_virtio_set_busid()"
drm/virtio: fix busid regression
drm: re-export drm_dev_set_unique
Linux 4.9-rc5
gp8psk: Fix DVB frontend attach
gp8psk: fix gp8psk_usb_in_op() logic
dvb-usb: move data_mutex to struct dvb_usb_device
iio: maxim_thermocouple: detect invalid storage size in read()
aoe: fix crash in page count manipulation
lightnvm: invalid offset calculation for lba_shift
Kbuild: enable -Wmaybe-uninitialized warnings by default
pcmcia: fix return value of soc_pcmcia_regulator_set
...
Thanks for pulling the previous patch for HDLCD. Unfortunately,
yesterday Robin Murphy discovered another issue while playing with
CMA allocation sizes, which he has submitted a fix for.
* 'for-upstream/hdlcd' of git://linux-arm.org/linux-ld:
drm: hdlcd: Fix cleanup order
Johan Hovold says:
====================
net: fix fixed-link phydev leaks
This series fixes failures to deregister and free fixed-link phydevs
that have been registered using the of_phy_register_fixed_link()
interface.
All but two drivers currently fail to do this and this series fixes most
of them with the exception of a staging driver and the stmmac drivers
which will be fixed by follow-on patches.
Included are also a couple of fixes for related of-node leaks.
Note that all patches except the of_mdio one have been compile-tested
only.
Also note that the series is against net due to dependencies not yet in
net-next.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Make sure to deregister and free any fixed-link PHY registered using
of_phy_register_fixed_link() on slave-setup errors and on slave destroy.
Fixes: 0d8bcdd383 ("net: dsa: allow for more complex PHY setups")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make sure to deregister and free any fixed-link PHY registered using
of_phy_register_fixed_link() on probe errors and on driver unbind.
Also remember to put the of-node reference on probe errors.
Fixes: 1bb6aa56bb ("net: davinci_emac: Add support for fixed-link
PHY")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make sure to deregister and free any fixed-link PHY registered using
of_phy_register_fixed_link() on probe errors and on driver unbind.
Fixes: 077742dac2 ("dwc_eth_qos: Add support for Synopsys DWC Ethernet
QoS")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make sure to deregister and free any fixed-link PHY registered using
of_phy_register_fixed_link() on initialisation errors and on device
close after having disconnected the PHY.
Fixes: b4bc88a868 ("ravb: Add fixed-link support")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make sure to deregister and free any fixed-link PHY registered using
of_phy_register_fixed_link() on initialisation errors and on uninit.
Fixes: 0c72c50f6f ("net-next: mediatek: add fixed-phy support")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make sure to deregister and free any fixed-link PHY registered using
of_phy_register_fixed_link() on probe errors and on driver unbind.
Fixes: 83895bedee ("net: mvneta: add support for fixed links")
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make sure to deregister and free any fixed-link PHY registered using
of_phy_register_fixed_link() on probe errors and on driver unbind.
Fixes: 87009814cd ("ucc_geth: use the new fixed PHY helpers")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make sure to deregister and free any fixed-link PHY registered using
of_phy_register_fixed_link() on probe errors and on driver unbind.
Fixes: be40364544 ("gianfar: use the new fixed PHY helpers")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make sure to deregister and free any fixed-link PHY registered using
of_phy_register_fixed_link() on probe errors and on driver unbind.
Fixes: bb74d9a4a8 ("fs_enet: use the new fixed PHY helpers")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make sure to deregister and free any fixed-link PHY registered using
of_phy_register_fixed_link() on probe errors and on driver unbind.
Fixes: 407066f8f3 ("net: fec: Support phys probed from devicetree and
fixed-link")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make sure to deregister and free any fixed-link PHY registered using
of_phy_register_fixed_link() on probe errors and on driver unbind.
Note that we're still leaking any fixed-link PHY registered in the
non-OF probe path.
Fixes: 9abf0c2b71 ("net: bcmgenet: use the new fixed PHY helpers")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make sure to deregister and free any fixed-link PHY registered using
of_phy_register_fixed_link() on probe errors and on driver unbind.
Fixes: 186534a3f8 ("net: systemport: use the new fixed PHY helpers")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make sure to deregister and free any fixed-link PHY registered using
of_phy_register_fixed_link() on probe errors and on driver unbind.
Fixes: c7dfe3abf4 ("net: ethernet: nb8800: support fixed-link DT
node")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make sure to deregister and free any fixed-link PHY registered using
of_phy_register_fixed_link() on probe errors and on driver unbind.
Fixes: 7cdbc6f74f ("altera tse: add support for fixed-links.")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add helper to deregister fixed-link PHYs registered using
of_phy_register_fixed_link().
Convert the two drivers that care to deregister their fixed-link PHYs to
use the new helper, but note that most drivers currently fail to do so.
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make sure to drop the reference taken by of_parse_phandle() before
returning from dsa_slave_phy_setup().
Note that this also modifies the PHY priority so that any fixed-link
node is only parsed when no phy-handle is given, which is in accordance
with the common scheme for this.
Fixes: 0d8bcdd383 ("net: dsa: allow for more complex PHY setups")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Regression fixes for PX and a powerplay fix.
* 'drm-fixes-4.9' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: fix check for port PM availability
drm/amdgpu: fix check for port PM availability
drm/amd/powerplay: initialize the soft_regs offset in struct smu7_hwmgr
- PAE40 crash [Yuriy]
- Disabling IO-Coherency by default
- Using a different inline asm constraint for Zero Overhead loops
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Merge tag 'arc-4.9-final' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull ARC fixes from Vineet Gupta:
- fix PAE40 crash [Yuriy]
- disable IO-Coherency by default
- use a different inline asm constraint for Zero Overhead loops
* tag 'arc-4.9-final' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
ARC: mm: PAE40: Fix crash at munmap
ARC: mm: IOC: Don't enable IOC by default
ARC: Don't use "+l" inline asm constraint
As it may get stale and lead to use after free.
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Alexander Duyck <aduyck@mirantis.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Fixes: cbc53e08a7 ("GSO: Add GSO type for fixed IPv4 ID")
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Be symmetric to hashtable insert and remove filter from hashtable only
in case skip sw flag is not set.
Fixes: e69985c67c ("net/sched: cls_flower: Introduce support in SKIP SW flag")
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Amir Vadai <amir@vadai.me>
Signed-off-by: David S. Miller <davem@davemloft.net>
pskb_may_pull() can reallocate skb->head, we need to reload dh pointer
in dccp_invalid_packet() or risk use after free.
Bug found by Andrey Konovalov using syzkaller.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When a hardware issue happened as described by inline comments, the register
write pattern looks like the following:
<write ~MACB_BIT(RE)>
+ wmb();
<write MACB_BIT(RE)>
There might be a memory barrier between these two write operations, so add wmb
to ensure an flip from 0 to 1 for NCR.
Signed-off-by: Zumeng Chen <zumeng.chen@windriver.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
On macb only (not gem), when a RX queue corruption was detected from
macb_rx(), the RX queue was reset: during this process the RX ring
buffer descriptor was initialized by macb_init_rx_ring() but we forgot
to also set bp->rx_tail to 0.
Indeed, when processing the received frames, bp->rx_tail provides the
macb driver with the index in the RX ring buffer of the next buffer to
process. So when the whole ring buffer is reset we must also reset
bp->rx_tail so the driver is synchronized again with the hardware.
Since macb_init_rx_ring() is called from many locations, currently from
macb_rx() and macb_init_rings(), we'd rather add the "bp->rx_tail = 0;"
line inside macb_init_rx_ring() than add the very same line after each
call of this function.
Without this fix, the rx queue is not reset properly to recover from
queue corruption and connection drop may occur.
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Fixes: 9ba723b081 ("net: macb: remove BUG_ON() and reset the queue to handle RX errors")
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The cb->done interface expects to be called in process context.
This was broken by the netlink RCU conversion. This patch fixes
it by adding a worker struct to make the cb->done call where
necessary.
Fixes: 21e4902aea ("netlink: Lockless lookup with RCU grace...")
Reported-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add a validation function to make sure offset is valid:
1. Not below skb head (could happen when offset is negative).
2. Validate both 'offset' and 'at'.
Signed-off-by: Amir Vadai <amir@vadai.me>
Signed-off-by: David S. Miller <davem@davemloft.net>
This enables CONFIG_MODVERSIONS again, but allows for missing symbol CRC
information in order to work around the issue that newer binutils
versions seem to occasionally drop the CRC on the floor. binutils 2.26
seems to work fine, while binutils 2.27 seems to break MODVERSIONS of
symbols that have been defined in assembler files.
[ We've had random missing CRC's before - it may be an old problem that
just is now reliably triggered with the weak asm symbols and a new
version of binutils ]
Some day I really do want to remove MODVERSIONS entirely. Sadly, today
does not appear to be that day: Debian people apparently do want the
option to enable MODVERSIONS to make it easier to have external modules
across kernel versions, and this seems to be a fairly minimal fix for
the annoying problem.
Cc: Ben Hutchings <ben@decadent.org.uk>
Acked-by: Michal Marek <mmarek@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull CIFS fixes from Steve French:
"A few misc important cifs fixes, including a fix for a 4.9 regression
in posix_acl xattr handling"
* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
CIFS: iterate over posix acl xattr entry correctly in ACL_to_cifs_posix()
Call echo service immediately after socket reconnect
CIFS: Fix BUG() in calc_seckey()
Dmitry Vyukov reported GPF in network stack that Andrey traced down to
negative nh offset in nf_ct_frag6_queue().
Problem is that all network headers before fragment header are pulled.
Normal ipv6 reassembly will drop the skb when errors occur further down
the line.
netfilter doesn't do this, and instead passed the original fragment
along. That was also fine back when netfilter ipv6 defrag worked with
cloned fragments, as the original, pristine fragment was passed on.
So we either have to undo the pull op, or discard such fragments.
Since they're malformed after all (e.g. overlapping fragment) it seems
preferrable to just drop them.
Same for temporary errors -- it doesn't make sense to accept (and
perhaps forward!) only some fragments of same datagram.
Fixes: 029f7f3b87 ("netfilter: ipv6: nf_defrag: avoid/free clone operations")
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Debugged-by: Andrey Konovalov <andreyknvl@google.com>
Diagnosed-by: Eric Dumazet <Eric Dumazet <edumazet@google.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Four small fixes. The be2iscsi is a potential device overrun in
consistent memory, which could have nasty consequences if the
consistent allocations are packed. The hpsa one fixes a regression
where older controllers can now get a numbering clash between the
first internal disk and the controller. The libfc one is a regression
in timespec conversions which causes a user visible issue in a command
line tool and the mpt3sas one fixes a regression where the controller
could remain permanently blocked after an ATA pass through command
followed by a reset.
Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Four small fixes.
The be2iscsi is a potential device overrun in consistent memory, which
could have nasty consequences if the consistent allocations are
packed.
The hpsa one fixes a regression where older controllers can now get a
numbering clash between the first internal disk and the controller.
The libfc one is a regression in timespec conversions which causes a
user visible issue in a command line tool and the mpt3sas one fixes a
regression where the controller could remain permanently blocked after
an ATA pass through command followed by a reset"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: be2iscsi: allocate enough memory in beiscsi_boot_get_sinfo()
scsi: mpt3sas: Unblock device after controller reset
scsi: hpsa: use bus '3' for legacy HBA devices
scsi: libfc: fix seconds_since_last_reset miscalculation
Fix race from forced shutdown of crtc in unload by adding internal
locking and a boolean telling if device is going to be shutdown.
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Use unload to handle initialization failures instead of complex goto
label mess. To do this the initialization sequence needed slight
reordering and some unload functions needed to become conditional.
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Stop using struct drm_driver load() and unload() callbacks. The
callbacks should not be used anymore. Instead of using load the
drm_device is allocated with drm_dev_alloc() and registered with
drm_dev_register() only after the driver is completely initialized.
The deinitialization is done directly either in component unbind
callback or in platform driver demove callback.
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Remove obsolete drm_connector_register() calls from tilcdc_panel.c and
tilcdc_tfp410.c. All connectors are registered when drm_dev_register()
is called.
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
This error message will be printed when a FIFO underflow irq has
triggered. Since this happens sometimes and the error message will be
displayed on the console, it should have a correct spelling.
Signed-off-by: Daniel Schultz <d.schultz@phytec.de>
Signed-off-by: Jyri Sarha <jsarha@ti.com>
The commit d8ff0c63fbcb ("drm/tilcdc: Adjust the FB_CEILING address")
added an adjustment of the FB_CEILING address. This is done by decrementing
the address by one.
On the AM335x (rev 0x4F201000) the framebuffer is rotated left over the
display border, because the ceiling address is 8f276fff instead of
8f277000. Since this adjustment isn't necessary for the LCDC v2, the
origin ceiling address should be used.
Signed-off-by: Daniel Schultz <d.schultz@phytec.de>
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Due to some potential tweaks for the da850 LCDC (for example: the
required memory bandwith settings) we need a separate compatible
for the IP present on the da850 boards.
Suggested-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Some architectures don't use the common clock framework and don't
implement all the clk interfaces for every clock. This is the case
for da850-lcdk where clk_set_rate() only works for PLL0 and PLL1.
Trying to set the clock rate for the LCDC clock results in -EINVAL
being returned.
As a workaround for that: if the call to clk_set_rate() fails, fall
back to adjusting the clock divider instead. Proper divider value is
calculated by dividing the current clock rate by the required pixel
clock rate in HZ.
This code is based on a hack initially developed internally for
baylibre by Karl Beldan <kbeldan@baylibre.com>.
Tested with a da850-lcdk with an LCD display connected over VGA.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Looks like we're only initializing dev_priv->atomic_cdclk_freq
at resume and commit times, not at init time. Let's do that as
well.
We're now hitting the 'WARN_ON(intel_state->cdclk == 0)' in
hsw_compute_linetime_wm() on account of populating
intel_state->cdclk from dev_priv->atomic_cdclk_freq.
Previously we were mispopulating intel_state->cdclk with
dev_priv->cdclk_freq which always had a proper value at init
time and hence the WARN_ON() didn't trigger.
Cc: stable@vger.kernel.org
Cc: Matthew Auld <matthew.auld@intel.com>
Reported-by: Matthew Auld <matthew.auld@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98902
Fixes: e0ca7a6be3 ("drm/i915: Fix cdclk vs. dev_cdclk mess when not recomputing things")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1480428837-4207-1-git-send-email-ville.syrjala@linux.intel.com
Tested-by: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Tobias Brunner