On Fri, May 25, 2018 at 04:00:44PM +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. > > Signed-off-by: Sharat Masetty <smasetty@xxxxxxxxxxxxxx> Reviewed-by: Jordan Crouse <jcrouse@xxxxxxxxxxxxxx> > --- > 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 1c09acf..d7586f2 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(&gpu->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 > -- The Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
