Re: [PATCH for-5.10.y] drm/msm/dpu: always use mdp device to scale bandwidth

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On Fri, May 28, 2021 at 05:01:02PM +0530, Amit Pundir wrote:
> From: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
> 
> [ Upstream commit a670ff578f1fb855fedc7931fa5bbc06b567af22 ]
> 
> Currently DPU driver scales bandwidth and core clock for sc7180 only,
> while the rest of chips get static bandwidth votes. Make all chipsets
> scale bandwidth and clock per composition requirements like sc7180 does.
> Drop old voting path completely.
> 
> Tested on RB3 (SDM845) and RB5 (SM8250).
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
> Link: https://lore.kernel.org/r/20210401020533.3956787-2-dmitry.baryshkov@xxxxxxxxxx
> Signed-off-by: Rob Clark <robdclark@xxxxxxxxxxxx>
> Signed-off-by: Amit Pundir <amit.pundir@xxxxxxxxxx>
> ---
> Fixes dpu_runtime_resume() WARN_ON on db845c/RB3 (sdm845),
> introduced by the backport of upstream commit 627dc55c273d
> ("drm/msm/disp/dpu1: icc path needs to be set before dpu
> runtime resume") on v5.10.y.
> 
>  drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c  |  3 +-
>  drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c | 51 +-----------------------
>  2 files changed, 2 insertions(+), 52 deletions(-)

What about a version of this for 5.12?  I can't take one for 5.10 and
not a newer kernel, right?

thanks,

greg k-h



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