linux-stable.git/drivers/gpu, branch v4.19.241

drm/panel/raspberrypi-touchscreen: Initialise the bridge in prepare

2022-04-27T11:39:44+00:00

[ Upstream commit 5f18c0782b99e26121efa93d20b76c19e17aa1dd ]

The panel has a prepare call which is before video starts, and an
enable call which is after.
The Toshiba bridge should be configured before video, so move
the relevant power and initialisation calls to prepare.

Fixes: 2f733d6194bd ("drm/panel: Add support for the Raspberry Pi 7" Touchscreen.")
Signed-off-by: Dave Stevenson 
Signed-off-by: Stefan Wahren 
Signed-off-by: Maxime Ripard 
Link: https://patchwork.freedesktop.org/patch/msgid/20220415162513.42190-3-stefan.wahren@i2se.com
Signed-off-by: Sasha Levin

drm/panel/raspberrypi-touchscreen: Avoid NULL deref if not initialised

2022-04-27T11:39:44+00:00

[ Upstream commit f92055ae0acb035891e988ce345d6b81a0316423 ]

If a call to rpi_touchscreen_i2c_write from rpi_touchscreen_probe
fails before mipi_dsi_device_register_full is called, then
in trying to log the error message if uses ts->dsi->dev when
it is still NULL.

Use ts->i2c->dev instead, which is initialised earlier in probe.

Fixes: 2f733d6194bd ("drm/panel: Add support for the Raspberry Pi 7" Touchscreen.")
Signed-off-by: Dave Stevenson 
Signed-off-by: Stefan Wahren 
Signed-off-by: Maxime Ripard 
Link: https://patchwork.freedesktop.org/patch/msgid/20220415162513.42190-2-stefan.wahren@i2se.com
Signed-off-by: Sasha Levin

drm/msm/mdp5: check the return of kzalloc()

2022-04-27T11:39:44+00:00

[ Upstream commit 047ae665577776b7feb11bd4f81f46627cff95e7 ]

kzalloc() is a memory allocation function which can return NULL when
some internal memory errors happen. So it is better to check it to
prevent potential wrong memory access.

Besides, since mdp5_plane_reset() is void type, so we should better
set `plane-state` to NULL after releasing it.

Signed-off-by: Xiaoke Wang 
Reviewed-by: Dmitry Baryshkov 
Patchwork: https://patchwork.freedesktop.org/patch/481055/
Link: https://lore.kernel.org/r/tencent_8E2A1C78140EE1784AB2FF4B2088CC0AB908@qq.com
Signed-off-by: Dmitry Baryshkov 
Signed-off-by: Rob Clark 
Signed-off-by: Sasha Levin

drm/amd/display: Fix allocate_mst_payload assert on resume

2022-04-20T07:12:49+00:00

[ Upstream commit f4346fb3edf7720db3f7f5e1cab1f667cd024280 ]

[Why]
On resume we do link detection for all non-MST connectors.
MST is handled separately. However the condition for telling
if connector is on mst branch is not enough for mst hub case.
Link detection for mst branch link leads to mst topology reset.
That causes assert in dc_link_allocate_mst_payload()

[How]
Use link type as indicator for mst link.

Reviewed-by: Wayne Lin 
Acked-by: Alex Hung 
Signed-off-by: Roman Li 
Tested-by: Daniel Wheeler 
Signed-off-by: Alex Deucher 
Signed-off-by: Sasha Levin

gpu: ipu-v3: Fix dev_dbg frequency output

2022-04-20T07:12:49+00:00

[ Upstream commit 070a88fd4a03f921b73a2059e97d55faaa447dab ]

This commit corrects the printing of the IPU clock error percentage if
it is between -0.1% to -0.9%. For example, if the pixel clock requested
is 27.2 MHz but only 27.0 MHz can be achieved the deviation is -0.8%.
But the fixed point math had a flaw and calculated error of 0.2%.

Before:
  Clocks: IPU 270000000Hz DI 24716667Hz Needed 27200000Hz
  IPU clock can give 27000000 with divider 10, error 0.2%
  Want 27200000Hz IPU 270000000Hz DI 24716667Hz using IPU, 27000000Hz

After:
  Clocks: IPU 270000000Hz DI 24716667Hz Needed 27200000Hz
  IPU clock can give 27000000 with divider 10, error -0.8%
  Want 27200000Hz IPU 270000000Hz DI 24716667Hz using IPU, 27000000Hz

Signed-off-by: Leo Ruan 
Signed-off-by: Mark Jonas 
Reviewed-by: Philipp Zabel 
Signed-off-by: Philipp Zabel 
Link: https://lore.kernel.org/r/20220207151411.5009-1-mark.jonas@de.bosch.com
Signed-off-by: Sasha Levin

drm/amdkfd: Check for potential null return of kmalloc_array()

2022-04-20T07:12:49+00:00

[ Upstream commit ebbb7bb9e80305820dc2328a371c1b35679f2667 ]

As the kmalloc_array() may return null, the 'event_waiters[i].wait' would lead to null-pointer dereference.
Therefore, it is better to check the return value of kmalloc_array() to avoid this confusion.

Signed-off-by: QintaoShen 
Signed-off-by: Alex Deucher 
Signed-off-by: Sasha Levin

drm/amd: Add USBC connector ID

2022-04-20T07:12:49+00:00

[ Upstream commit c5c948aa894a831f96fccd025e47186b1ee41615 ]

[Why&How] Add a dedicated AMDGPU specific ID for use with
newer ASICs that support USB-C output

Signed-off-by: Aurabindo Pillai 
Reviewed-by: Alex Deucher 
Signed-off-by: Alex Deucher 
Signed-off-by: Sasha Levin

drm/amdkfd: Use drm_priv to pass VM from KFD to amdgpu

2022-04-15T12:15:07+00:00

commit b40a6ab2cf9213923bf8e821ce7fa7f6a0a26990 upstream.

amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu needs the drm_priv to allow mmap
to access the BO through the corresponding file descriptor. The VM can
also be extracted from drm_priv, so drm_priv can replace the vm parameter
in the kfd2kgd interface.

Signed-off-by: Felix Kuehling 
Reviewed-by: Philip Yang 
Signed-off-by: Alex Deucher 
[ This is a partial cherry-pick of the commit. ]
Signed-off-by: Lee Jones 
Signed-off-by: Greg Kroah-Hartman

drm/amdgpu: Check if fd really is an amdgpu fd.

2022-04-15T12:15:07+00:00

commit 021830d24ba55a578f602979274965344c8e6284 upstream.

Otherwise we interpret the file private data as drm & amdgpu data
while it might not be, possibly allowing one to get memory corruption.

Signed-off-by: Bas Nieuwenhuizen 
Reviewed-by: Christian König 
Signed-off-by: Alex Deucher 
Signed-off-by: Lee Jones 
Signed-off-by: Greg Kroah-Hartman

drm/imx: Fix memory leak in imx_pd_connector_get_modes

2022-04-15T12:15:05+00:00

[ Upstream commit bce81feb03a20fca7bbdd1c4af16b4e9d5c0e1d3 ]

Avoid leaking the display mode variable if of_get_drm_display_mode
fails.

Fixes: 76ecd9c9fb24 ("drm/imx: parallel-display: check return code from of_get_drm_display_mode()")
Addresses-Coverity-ID: 1443943 ("Resource leak")
Signed-off-by: José Expósito 
Signed-off-by: Philipp Zabel 
Link: https://lore.kernel.org/r/20220108165230.44610-1-jose.exposito89@gmail.com
Signed-off-by: Sasha Levin