kernel/linux.git/drivers/gpu/drm/lima/lima_device.c, branch linux-5.11.y

drm/lima: add pm resume/suspend ops

2020-04-24T12:51:19+00:00

Add driver pm system and runtime hardware resume/suspend ops. Note this won't enable runtime pm of the device yet. v2: Do clock and power gating when suspend/resume. Tested-by: Bhushan Shah Reviewed-by: Vasily Khoruzhick Signed-off-by: Qiang Yu Link: https://patchwork.freedesktop.org/patch/msgid/20200421133551.31481-10-yuq825@gmail.com

drm/lima: separate clk/regulator enable/disable function

2020-04-24T12:51:15+00:00

For being used by both device init/fini and suspend/resume. Tested-by: Bhushan Shah Reviewed-by: Vasily Khoruzhick Signed-off-by: Qiang Yu Link: https://patchwork.freedesktop.org/patch/msgid/20200421133551.31481-9-yuq825@gmail.com

drm/lima: add resume/suspend callback for each ip

2020-04-24T12:51:10+00:00

For called when PM do resume/suspend. Tested-by: Bhushan Shah Reviewed-by: Vasily Khoruzhick Signed-off-by: Qiang Yu Link: https://patchwork.freedesktop.org/patch/msgid/20200421133551.31481-8-yuq825@gmail.com

drm/lima: Clean up redundant pdev pointer

2020-04-24T12:47:11+00:00

There's no point explicitly tracking the platform device when it can be trivially derived from the regular device pointer in the couple of places it's ever used. Signed-off-by: Robin Murphy Signed-off-by: Qiang Yu Link: https://patchwork.freedesktop.org/patch/msgid/8d9073cc91c10fc70910587fd1794e0e8f32b467.1587509150.git.robin.murphy@arm.com

drm/lima: Clean up IRQ warnings

2020-04-24T12:47:00+00:00

Use the optional form of platform_get_irq() for blocks that legitimately may not be present, to avoid getting an annoying barrage of spurious warnings for non-existent PPs on configurations like Mali-450 MP2. Signed-off-by: Robin Murphy Signed-off-by: Qiang Yu Link: https://patchwork.freedesktop.org/patch/msgid/de475904091400ef6c123285f221094654d96d35.1587509150.git.robin.murphy@arm.com

drm/lima: Add optional devfreq and cooling device support

2020-03-28T08:29:46+00:00

Most platforms with a Mali-400 or Mali-450 GPU also have support for changing the GPU clock frequency. Add devfreq support so the GPU clock rate is updated based on the actual GPU usage when the "operating-points-v2" property is present in the board.dts. The actual devfreq code is taken from panfrost_devfreq.c and modified so it matches what the lima hardware needs: - a call to dev_pm_opp_set_clkname() during initialization because there are two clocks on Mali-4x0 IPs. "core" is the one that actually clocks the GPU so we need to control it using devfreq. - locking when reading or writing the devfreq statistics because (unlike than panfrost) we have multiple PP and GP IRQs which may finish jobs concurrently. Signed-off-by: Martin Blumenstingl Signed-off-by: Qiang Yu Link: https://patchwork.freedesktop.org/patch/msgid/20200319203427.2259891-3-martin.blumenstingl@googlemail.com

drm/lima: save task info dump when task fail

2020-03-22T01:35:19+00:00

Save all information to start a task which can be exported to user for debug usage. Dump file data format is specified in lima_dump.h v2: Add include header to address build robot complain. Tested-by: Andreas Baierl Reviewed-by: Vasily Khoruzhick Signed-off-by: Qiang Yu Link: https://patchwork.freedesktop.org/patch/msgid/20200307134423.24329-1-yuq825@gmail.com

drm/lima: add __GFP_NOWARN flag to all dma_alloc_wc

2019-10-17T15:42:02+00:00

This prevent CMA printing dumy "PFNs busy" info which is caused by alloc fail re-try case. Reviewed-by: Vasily Khoruzhick Signed-off-by: Qiang Yu Link: https://patchwork.freedesktop.org/patch/msgid/20191010140152.17747-4-yuq825@gmail.com

drm/lima: Add support for multiple reset lines

2019-10-05T09:51:16+00:00

Some SoCs like HiKey have 2 reset lines, so update to use the devm_reset_control_array_* variant of the API so that multiple resets can be specified in DT. Cc: Qiang Yu Cc: David Airlie Cc: Daniel Vetter Cc: dri-devel@lists.freedesktop.org Cc: lima@lists.freedesktop.org Signed-off-by: Peter Griffin Signed-off-by: John Stultz Signed-off-by: Qiang Yu Link: https://patchwork.freedesktop.org/patch/msgid/20191001182927.70448-1-john.stultz@linaro.org

drm/lima: Reduce the amount of logs on deferred probe of clocks and reset controller

2019-06-23T03:24:05+00:00

There is no point to print deferred probe messages as errors. Adjust the printks for error paths of obtaining clocks and reset controller. This removes the error message of lima_clk_init() call in favor or specific failure messages inside. Signed-off-by: Krzysztof Kozlowski Signed-off-by: Qiang Yu Link: https://patchwork.freedesktop.org/patch/msgid/20190621162117.22533-4-krzk@kernel.org