linux-stable.git/drivers/gpu/drm/msm, branch v4.19.166

drm/msm/dsi_pll_10nm: restore VCO rate during restore_state

2020-12-30T10:25:51+00:00

[ Upstream commit a4ccc37693a271330a46208afbeaed939d54fdbb ]

PHY disable/enable resets PLL registers to default values. Thus in
addition to restoring several registers we also need to restore VCO rate
settings.

Signed-off-by: Dmitry Baryshkov 
Fixes: c6659785dfb3 ("drm/msm/dsi/pll: call vco set rate explicitly")
Signed-off-by: Rob Clark 
Signed-off-by: Sasha Levin

drm/msm/a5xx: Always set an OPP supported hardware value

2020-10-01T11:14:38+00:00

[ Upstream commit 0478b4fc5f37f4d494245fe7bcce3f531cf380e9 ]

If the opp table specifies opp-supported-hw as a property but the driver
has not set a supported hardware value the OPP subsystem will reject
all the table entries.

Set a "default" value that will match the default table entries but not
conflict with any possible real bin values. Also fix a small memory leak
and free the buffer allocated by nvmem_cell_read().

Signed-off-by: Jordan Crouse 
Reviewed-by: Eric Anholt 
Signed-off-by: Rob Clark 
Signed-off-by: Sasha Levin

drm/msm: fix leaks if initialization fails

2020-10-01T11:14:38+00:00

[ Upstream commit 66be340f827554cb1c8a1ed7dea97920b4085af2 ]

We should free resources in unlikely case of allocation failure.

Signed-off-by: Pavel Machek 
Signed-off-by: Rob Clark 
Signed-off-by: Sasha Levin

drm/msm: Disable preemption on all 5xx targets

2020-09-17T11:45:29+00:00

commit 7b3f3948c8b7053d771acc9f79810cc410f5e2e0 upstream.

Temporarily disable preemption on a5xx targets pending some improvements
to protect the RPTR shadow from being corrupted.

Cc: stable@vger.kernel.org
Signed-off-by: Jordan Crouse 
Signed-off-by: Rob Clark 
Signed-off-by: Greg Kroah-Hartman

drm/msm/a6xx: fix gmu start on newer firmware

2020-09-09T17:04:23+00:00

[ Upstream commit f5749d6181fa7df5ae741788e5d96f593d3a60b6 ]

New Qualcomm firmware has changed a way it reports back the 'started'
event. Support new register values.

Signed-off-by: Dmitry Baryshkov 
Signed-off-by: Rob Clark 
Signed-off-by: Sasha Levin

drm/msm: add shutdown support for display platform_driver

2020-09-09T17:04:23+00:00

[ Upstream commit 9d5cbf5fe46e350715389d89d0c350d83289a102 ]

Define shutdown callback for display drm driver,
so as to disable all the CRTCS when shutdown
notification is received by the driver.

This change will turn off the timing engine so
that no display transactions are requested
while mmu translations are getting disabled
during reboot sequence.

Signed-off-by: Krishna Manikandan 

Changes in v2:
	- Remove NULL check from msm_pdev_shutdown (Stephen Boyd)
	- Change commit text to reflect when this issue
	  was uncovered (Sai Prakash Ranjan)

Signed-off-by: Rob Clark 
Signed-off-by: Sasha Levin

drm/msm/adreno: fix updating ring fence

2020-09-03T09:24:23+00:00

[ Upstream commit f228af11dfa1d1616bc67f3a4119ab77c36181f1 ]

We need to set it to the most recent completed fence, not the most
recent submitted.  Otherwise we have races where we think we can retire
submits that the GPU is not finished with, if the GPU doesn't manage to
overwrite the seqno before we look at it.

This can show up with hang recovery if one of the submits after the
crashing submit also hangs after it is replayed.

Fixes: f97decac5f4c ("drm/msm: Support multiple ringbuffers")
Signed-off-by: Rob Clark 
Reviewed-by: Jordan Crouse 
Signed-off-by: Rob Clark 
Signed-off-by: Sasha Levin

drm/msm: ratelimit crtc event overflow error

2020-08-19T06:14:53+00:00

[ Upstream commit 5e16372b5940b1fecc3cc887fc02a50ba148d373 ]

This can happen a lot when things go pear shaped.  Lets not flood dmesg
when this happens.

Signed-off-by: Rob Clark 
Reviewed-by: Abhinav Kumar 
Signed-off-by: Rob Clark 
Signed-off-by: Sasha Levin

drm/msm: fix potential memleak in error branch

2020-07-22T07:32:01+00:00

[ Upstream commit 177d3819633cd520e3f95df541a04644aab4c657 ]

In function msm_submitqueue_create, the queue is a local
variable, in return -EINVAL branch, queue didn`t add to ctx`s
list yet, and also didn`t kfree, this maybe bring in potential
memleak.

Signed-off-by: Bernard Zhao 
[trivial commit msg fixup]
Signed-off-by: Rob Clark 
Signed-off-by: Sasha Levin

drm/msm/dpu: fix error return code in dpu_encoder_init

2020-07-09T07:37:10+00:00

[ Upstream commit aa472721c8dbe1713cf510f56ffbc56ae9e14247 ]

Fix to return negative error code -ENOMEM with the use of
ERR_PTR from dpu_encoder_init.

Fixes: 25fdd5933e4c ("drm/msm: Add SDM845 DPU support")
Signed-off-by: Chen Tao 
Signed-off-by: Rob Clark 
Signed-off-by: Sasha Levin