drm/msm: split the main platform driver

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Currently the msm platform driver is a multiplex handling several cases:
- headless GPU-only driver,
- MDP4 with flat device nodes,
- MDP5/DPU MDSS with all the nodes being children of MDSS node.

This results in not-so-perfect code, checking the hardware version
(MDP4/MDP5/DPU) in several places, checking for mdss even when it can
not exist, etc. Split the code into three handling subdrivers (mdp4,
mdss and headless msm).

Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/482507/
Link: https://lore.kernel.org/r/20220419155346.1272627-4-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

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This commit is contained in:

Dmitry Baryshkov 2022-04-19 18:53:43 +03:00

parent e1072257ff

commit ecb23f2e30

5 changed files with 288 additions and 205 deletions

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56

drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c

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242

drivers/gpu/drm/msm/msm_drv.c

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27

drivers/gpu/drm/msm/msm_drv.h

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7

drivers/gpu/drm/msm/msm_kms.h

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175

drivers/gpu/drm/msm/msm_mdss.c

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