<feed xmlns='http://www.w3.org/2005/Atom'>
<title>kernel/linux.git/drivers/gpu/drm/bridge, branch v5.18.2</title>
<subtitle>Linux kernel stable tree (mirror)</subtitle>
<id>https://git.radix-linux.su/kernel/linux.git/atom?h=v5.18.2</id>
<link rel='self' href='https://git.radix-linux.su/kernel/linux.git/atom?h=v5.18.2'/>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/kernel/linux.git/'/>
<updated>2022-05-04T08:14:16+00:00</updated>
<entry>
<title>drm/bridge: ite-it6505: add missing Kconfig option select</title>
<updated>2022-05-04T08:14:16+00:00</updated>
<author>
<name>Fabien Parent</name>
<email>fparent@baylibre.com</email>
</author>
<published>2022-04-26T14:15:36+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/kernel/linux.git/commit/?id=841e512ffb64898db6322c0619f6bbc41266d86f'/>
<id>urn:sha1:841e512ffb64898db6322c0619f6bbc41266d86f</id>
<content type='text'>
The IT6505 is using functions provided by the DRM_DP_HELPER driver.
In order to avoid having the bridge enabled but the helper disabled,
let's add a select in order to be sure that the DP helper functions are
always available.

Fixes: b5c84a9edcd4 ("drm/bridge: add it6505 driver")
Signed-off-by: Fabien Parent &lt;fparent@baylibre.com&gt;
Reviewed-by: Neil Armstrong &lt;narmstrong@baylibre.com&gt;
Signed-off-by: Neil Armstrong &lt;narmstrong@baylibre.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20220426141536.274727-1-fparent@baylibre.com
</content>
</entry>
<entry>
<title>Merge tag 'drm-next-2022-03-24' of git://anongit.freedesktop.org/drm/drm</title>
<updated>2022-03-24T23:19:43+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2022-03-24T23:19:43+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/kernel/linux.git/commit/?id=b14ffae378aa1db993e62b01392e70d1e585fb23'/>
<id>urn:sha1:b14ffae378aa1db993e62b01392e70d1e585fb23</id>
<content type='text'>
Pull drm updates from Dave Airlie:
 "Lots of work all over, Intel improving DG2 support, amdkfd CRIU
  support, msm new hw support, and faster fbdev support.

  dma-buf:
   - rename dma-buf-map to iosys-map

  core:
   - move buddy allocator to core
   - add pci/platform init macros
   - improve EDID parser deep color handling
   - EDID timing type 7 support
   - add GPD Win Max quirk
   - add yes/no helpers to string_helpers
   - flatten syncobj chains
   - add nomodeset support to lots of drivers
   - improve fb-helper clipping support
   - add default property value interface

  fbdev:
   - improve fbdev ops speed

  ttm:
   - add a backpointer from ttm bo-&gt;ttm resource

  dp:
   - move displayport headers
   - add a dp helper module

  bridge:
   - anx7625 atomic support, HDCP support

  panel:
   - split out panel-lvds and lvds bindings
   - find panels in OF subnodes

  privacy:
   - add chromeos privacy screen support

  fb:
   - hot unplug fw fb on forced removal

  simpledrm:
   - request region instead of marking ioresource busy
   - add panel oreintation property

  udmabuf:
   - fix oops with 0 pages

  amdgpu:
   - power management code cleanup
   - Enable freesync video mode by default
   - RAS code cleanup
   - Improve VRAM access for debug using SDMA
   - SR-IOV rework special register access and fixes
   - profiling power state request ioctl
   - expose IP discovery via sysfs
   - Cyan skillfish updates
   - GC 10.3.7, SDMA 5.2.7, DCN 3.1.6 updates
   - expose benchmark tests via debugfs
   - add module param to disable XGMI for testing
   - GPU reset debugfs register dumping support

  amdkfd:
   - CRIU support
   - SDMA queue fixes

  radeon:
   - UVD suspend fix
   - iMac backlight fix

  i915:
   - minimal parallel submission for execlists
   - DG2-G12 subplatform added
   - DG2 programming workarounds
   - DG2 accelerated migration support
   - flat CCS and CCS engine support for XeHP
   - initial small BAR support
   - drop fake LMEM support
   - ADL-N PCH support
   - bigjoiner updates
   - introduce VMA resources and async unbinding
   - register definitions cleanups
   - multi-FBC refactoring
   - DG1 OPROM over SPI support
   - ADL-N platform enabling
   - opregion mailbox #5 support
   - DP MST ESI improvements
   - drm device based logging
   - async flip optimisation for DG2
   - CPU arch abstraction fixes
   - improve GuC ADS init to work on aarch64
   - tweak TTM LRU priority hint
   - GuC 69.0.3 support
   - remove short term execbuf pins

  nouveau:
   - higher DP/eDP bitrates
   - backlight fixes

  msm:
   - dpu + dp support for sc8180x
   - dp support for sm8350
   - dpu + dsi support for qcm2290
   - 10nm dsi phy tuning support
   - bridge support for dp encoder
   - gpu support for additional 7c3 SKUs

  ingenic:
   - HDMI support for JZ4780
   - aux channel EDID support

  ast:
   - AST2600 support
   - add wide screen support
   - create DP/DVI connectors

  omapdrm:
   - fix implicit dma_buf fencing

  vc4:
   - add CSC + full range support
   - better display firmware handoff

  panfrost:
   - add initial dual-core GPU support

  stm:
   - new revision support
   - fb handover support

  mediatek:
   - transfer display binding document to yaml format.
   - add mt8195 display device binding.
   - allow commands to be sent during video mode.
   - add wait_for_event for crtc disable by cmdq.

  tegra:
   - YUV format support

  rcar-du:
   - LVDS support for M3-W+ (R8A77961)

  exynos:
   - BGR pixel format for FIMD device"

* tag 'drm-next-2022-03-24' of git://anongit.freedesktop.org/drm/drm: (1529 commits)
  drm/i915/display: Do not re-enable PSR after it was marked as not reliable
  drm/i915/display: Fix HPD short pulse handling for eDP
  drm/amdgpu: Use drm_mode_copy()
  drm/radeon: Use drm_mode_copy()
  drm/amdgpu: Use ternary operator in `vcn_v1_0_start()`
  drm/amdgpu: Remove pointless on stack mode copies
  drm/amd/pm: fix indenting in __smu_cmn_reg_print_error()
  drm/amdgpu/dc: fix typos in comments
  drm/amdgpu: fix typos in comments
  drm/amd/pm: fix typos in comments
  drm/amdgpu: Add stolen reserved memory for MI25 SRIOV.
  drm/amdgpu: Merge get_reserved_allocation to get_vbios_allocations.
  drm/amdkfd: evict svm bo worker handle error
  drm/amdgpu/vcn: fix vcn ring test failure in igt reload test
  drm/amdgpu: only allow secure submission on rings which support that
  drm/amdgpu: fixed the warnings reported by kernel test robot
  drm/amd/display: 3.2.177
  drm/amd/display: [FW Promotion] Release 0.0.108.0
  drm/amd/display: Add save/restore PANEL_PWRSEQ_REF_DIV2
  drm/amd/display: Wait for hubp read line for Pollock
  ...
</content>
</entry>
<entry>
<title>drm: Don't make DRM_PANEL_BRIDGE dependent on DRM_KMS_HELPERS</title>
<updated>2022-03-17T10:07:57+00:00</updated>
<author>
<name>Thomas Zimmermann</name>
<email>tzimmermann@suse.de</email>
</author>
<published>2022-03-15T08:45:59+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/kernel/linux.git/commit/?id=3c3384050d68570f9de0fec9e58824decfefba7a'/>
<id>urn:sha1:3c3384050d68570f9de0fec9e58824decfefba7a</id>
<content type='text'>
Fix a number of undefined references to drm_kms_helper.ko in
drm_dp_helper.ko:

  arm-suse-linux-gnueabi-ld: drivers/gpu/drm/dp/drm_dp_mst_topology.o: in function `drm_dp_mst_duplicate_state':
  drm_dp_mst_topology.c:(.text+0x2df0): undefined reference to `__drm_atomic_helper_private_obj_duplicate_state'
  arm-suse-linux-gnueabi-ld: drivers/gpu/drm/dp/drm_dp_mst_topology.o: in function `drm_dp_delayed_destroy_work':
  drm_dp_mst_topology.c:(.text+0x370c): undefined reference to `drm_kms_helper_hotplug_event'
  arm-suse-linux-gnueabi-ld: drivers/gpu/drm/dp/drm_dp_mst_topology.o: in function `drm_dp_mst_up_req_work':
  drm_dp_mst_topology.c:(.text+0x7938): undefined reference to `drm_kms_helper_hotplug_event'
  arm-suse-linux-gnueabi-ld: drivers/gpu/drm/dp/drm_dp_mst_topology.o: in function `drm_dp_mst_link_probe_work':
  drm_dp_mst_topology.c:(.text+0x82e0): undefined reference to `drm_kms_helper_hotplug_event'

This happens if panel-edp.ko has been configured with

  DRM_PANEL_EDP=y
  DRM_DP_HELPER=y
  DRM_KMS_HELPER=m

which builds DP helpers into the kernel and KMS helpers sa a module.
Making DRM_PANEL_EDP select DRM_KMS_HELPER resolves this problem.

To avoid a resulting cyclic dependency with DRM_PANEL_BRIDGE, don't
make the latter depend on DRM_KMS_HELPER and fix the one DRM bridge
drivers that doesn't already select DRM_KMS_HELPER. As KMS helpers
cannot be selected directly by the user, config symbols should avoid
depending on it anyway.

Signed-off-by: Thomas Zimmermann &lt;tzimmermann@suse.de&gt;
Fixes: 3755d35ee1d2 ("drm/panel: Select DRM_DP_HELPER for DRM_PANEL_EDP")
Acked-by: Sam Ravnborg &lt;sam@ravnborg.org&gt;
Tested-by: Brian Masney &lt;bmasney@redhat.com&gt;
Reported-by: kernel test robot &lt;lkp@intel.com&gt;
Cc: Thomas Zimmermann &lt;tzimmermann@suse.de&gt;
Cc: Naresh Kamboju &lt;naresh.kamboju@linaro.org&gt;
Cc: Linux Kernel Functional Testing &lt;lkft@linaro.org&gt;
Cc: Lyude Paul &lt;lyude@redhat.com&gt;
Cc: Sam Ravnborg &lt;sam@ravnborg.org&gt;
Cc: Daniel Vetter &lt;daniel@ffwll.ch&gt;
Cc: Maarten Lankhorst &lt;maarten.lankhorst@linux.intel.com&gt;
Cc: Maxime Ripard &lt;mripard@kernel.org&gt;
Cc: dri-devel@lists.freedesktop.org
Cc: Dave Airlie &lt;airlied@redhat.com&gt;
Cc: Thierry Reding &lt;thierry.reding@gmail.com&gt;
Link: https://patchwork.freedesktop.org/patch/478296/
</content>
</entry>
<entry>
<title>Merge tag 'drm-misc-next-2022-03-03' of git://anongit.freedesktop.org/drm/drm-misc into drm-next</title>
<updated>2022-03-04T03:41:57+00:00</updated>
<author>
<name>Dave Airlie</name>
<email>airlied@redhat.com</email>
</author>
<published>2022-03-04T03:41:52+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/kernel/linux.git/commit/?id=c9e9ce0b6f85ac330adee912745048a0af5f315d'/>
<id>urn:sha1:c9e9ce0b6f85ac330adee912745048a0af5f315d</id>
<content type='text'>
drm-misc-next for v5.18:

UAPI Changes:

Cross-subsystem Changes:
- Improve performance of some fbdev ops, in some cases up to 6x faster.

Core Changes:
- Some small DP fixes.
- Find panels in subnodes of OF devices, and add of_get_drm_panel_display_mode
  to retrieve mode.
- Add drm_object_property_get_default_value and use it for resetting
  zpos in plane state reset, removing the need for individual drivers
  to do it.
- Same for color encoding and color range props.
- Update panic handling todo doc.
- Add todo that format conversion helpers should be sped up similarly to fbdev ops.

Driver Changes:
- Add panel orientation property to simpledrm for quirked panels.
- Assorted small fixes to tiny/repaper, nouveau, stm, omap, ssd130x.
- Add crc support to stm/ltdc.
- Add MIPI DBI compatible SPI driver
- Assorted small fixes to tiny panels and bridge drivers.
- Add AST2600 support to aspeed.

Signed-off-by: Dave Airlie &lt;airlied@redhat.com&gt;

From: Maarten Lankhorst &lt;maarten.lankhorst@linux.intel.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/48fabd78-ade9-f80b-c724-13726c7be69e@linux.intel.com
</content>
</entry>
<entry>
<title>Merge tag 'drm-misc-fixes-2022-03-03' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes</title>
<updated>2022-03-04T03:04:11+00:00</updated>
<author>
<name>Dave Airlie</name>
<email>airlied@redhat.com</email>
</author>
<published>2022-03-04T03:04:06+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/kernel/linux.git/commit/?id=8fdb19679722a02fe21642d39710c701d2ed567a'/>
<id>urn:sha1:8fdb19679722a02fe21642d39710c701d2ed567a</id>
<content type='text'>
 * drm/arm: Select DRM_GEM_CMEA_HELPER for HDLCD
 * drm/bridge: ti-sn65dsi86: Properly undo autosuspend
 * drm/vrr: Fix potential NULL-pointer deref

Signed-off-by: Dave Airlie &lt;airlied@redhat.com&gt;

From: Thomas Zimmermann &lt;tzimmermann@suse.de&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/YiCTGZ8IVCw0ilKK@linux-uq9g
</content>
</entry>
<entry>
<title>drm/bridge: nwl-dsi: Remove superfluous write to NWL_DSI_IRQ_MASK register</title>
<updated>2022-03-02T13:11:39+00:00</updated>
<author>
<name>Liu Ying</name>
<email>victor.liu@nxp.com</email>
</author>
<published>2022-02-16T08:58:42+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/kernel/linux.git/commit/?id=150430366b2dcb170d309952143e32eb814fe7f8'/>
<id>urn:sha1:150430366b2dcb170d309952143e32eb814fe7f8</id>
<content type='text'>
To initialize register NWL_DSI_IRQ_MASK, it's enough to write it
only once in function nwl_dsi_init_interrupts().

Signed-off-by: Liu Ying &lt;victor.liu@nxp.com&gt;
Reviewed-by: Guido Günther &lt;agx@sigxcpu.org&gt;
Signed-off-by: Robert Foss &lt;robert.foss@linaro.org&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20220216085842.1973868-1-victor.liu@nxp.com
</content>
</entry>
<entry>
<title>drm/bridge: Clear the DP_AUX_I2C_MOT bit passed in aux read command.</title>
<updated>2022-03-02T13:06:21+00:00</updated>
<author>
<name>Hsin-Yi Wang</name>
<email>hsinyi@chromium.org</email>
</author>
<published>2022-02-17T08:22:25+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/kernel/linux.git/commit/?id=c0bbed9051b6eb293be6128d060bb49e999ef7d4'/>
<id>urn:sha1:c0bbed9051b6eb293be6128d060bb49e999ef7d4</id>
<content type='text'>
If the previous transfer didn't end with a command without DP_AUX_I2C_MOT,
the next read trasnfer will miss the first byte. But if the command in
previous transfer is requested with length 0, it's a no-op to anx7625
since it can't process this command. anx7625 requires the last command
to be read command with length &gt; 0.

It's observed that if we clear the DP_AUX_I2C_MOT in read transfer, we
can still get correct data. Clear the read commands with DP_AUX_I2C_MOT
bit to fix this issue.

Fixes: adca62ec370c ("drm/bridge: anx7625: Support reading edid through aux channel")
Signed-off-by: Hsin-Yi Wang &lt;hsinyi@chromium.org&gt;
Reviewed-by: Xin Ji &lt;xji@analogixsemi.com&gt;
Signed-off-by: Robert Foss &lt;robert.foss@linaro.org&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20220217082224.1823916-1-hsinyi@chromium.org
</content>
</entry>
<entry>
<title>drm/bridge: chipone-icn6211: switch to devm_drm_of_get_bridge</title>
<updated>2022-03-01T13:03:37+00:00</updated>
<author>
<name>José Expósito</name>
<email>jose.exposito89@gmail.com</email>
</author>
<published>2022-02-21T07:42:24+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/kernel/linux.git/commit/?id=c803ae6d826e441b65b96133ac573c0062740bc2'/>
<id>urn:sha1:c803ae6d826e441b65b96133ac573c0062740bc2</id>
<content type='text'>
The function "drm_of_find_panel_or_bridge" has been deprecated in
favor of "devm_drm_of_get_bridge".

Switch to the new function and reduce boilerplate.

Signed-off-by: José Expósito &lt;jose.exposito89@gmail.com&gt;
Reviewed-by: Maxime Ripard &lt;maxime@cerno.tech&gt;
Signed-off-by: Robert Foss &lt;robert.foss@linaro.org&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20220221074224.12920-1-jose.exposito89@gmail.com
</content>
</entry>
<entry>
<title>drm/bridge: anx7625: Fix release wrong workqueue</title>
<updated>2022-03-01T13:00:55+00:00</updated>
<author>
<name>Xin Ji</name>
<email>xji@analogix.corp-partner.google.com</email>
</author>
<published>2022-02-17T02:44:17+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/kernel/linux.git/commit/?id=beac7709e40ba85e0827ffe0c6f3d6840588db31'/>
<id>urn:sha1:beac7709e40ba85e0827ffe0c6f3d6840588db31</id>
<content type='text'>
If "hdcp_workqueue" exist, must release "hdcp_workqueue",
not "workqueue".

Fixes: cd1637c7e480 ("drm/bridge: anx7625: add HDCP support")
Signed-off-by: Xin Ji &lt;xji@analogixsemi.com&gt;
Reviewed-by: Hsin-Yi Wang &lt;hsinyi@chromium.org&gt;
Signed-off-by: Robert Foss &lt;robert.foss@linaro.org&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20220217024418.3780171-1-xji@analogixsemi.com
</content>
</entry>
<entry>
<title>drm/bridge: ti-sn65dsi86: Properly undo autosuspend</title>
<updated>2022-02-28T17:52:46+00:00</updated>
<author>
<name>Douglas Anderson</name>
<email>dianders@chromium.org</email>
</author>
<published>2022-02-22T22:18:43+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/kernel/linux.git/commit/?id=26d3474348293dc752c55fe6d41282199f73714c'/>
<id>urn:sha1:26d3474348293dc752c55fe6d41282199f73714c</id>
<content type='text'>
The PM Runtime docs say:
  Drivers in -&gt;remove() callback should undo the runtime PM changes done
  in -&gt;probe(). Usually this means calling pm_runtime_disable(),
  pm_runtime_dont_use_autosuspend() etc.

We weren't doing that for autosuspend. Let's do it.

Fixes: 9bede63127c6 ("drm/bridge: ti-sn65dsi86: Use pm_runtime autosuspend")
Signed-off-by: Douglas Anderson &lt;dianders@chromium.org&gt;
Reviewed-by: Linus Walleij &lt;linus.walleij@linaro.org&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20220222141838.1.If784ba19e875e8ded4ec4931601ce6d255845245@changeid
</content>
</entry>
</feed>
