On Thu, Aug 23, 2018 at 02:48:27PM +0530, Sharat Masetty wrote:
> Devfreq turns on and starts recommending power level as soon as it is
> initialized. The GPU is still not powered on by the time the devfreq
> init happens and this leads to problems on GPU's where register access
> is needed to get/set power levels. So we start suspended and only restart
> devfreq when GPU is powered on.
Reviewed-by: Jordan Crouse
> Signed-off-by: Sharat Masetty
> ---
> drivers/gpu/drm/msm/msm_gpu.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c
> index 5281a32..04f9604 100644
> --- a/drivers/gpu/drm/msm/msm_gpu.c
> +++ b/drivers/gpu/drm/msm/msm_gpu.c
> @@ -104,6 +104,8 @@ static void msm_devfreq_init(struct msm_gpu *gpu)
> dev_err(>pdev->dev, "Couldn't initialize GPU devfreq\n");
> gpu->devfreq.devfreq = NULL;
> }
> +
> + devfreq_suspend_device(gpu->devfreq.devfreq);
> }
>
> static int enable_pwrrail(struct msm_gpu *gpu)
> --
> 1.9.1
>
--
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