From 3b1c3804fb4912a5d96b50c9854fb45cb095bea4 Mon Sep 17 00:00:00 2001 From: Sharat Masetty Date: Thu, 4 Oct 2018 15:11:40 +0530 Subject: [PATCH] drm/msm: suspend devfreq on init 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 Signed-off-by: Rob Clark --- 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 46e6b82f7b661..3378a9d5a2a2e 100644 --- a/drivers/gpu/drm/msm/msm_gpu.c +++ b/drivers/gpu/drm/msm/msm_gpu.c @@ -105,6 +105,8 @@ 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) -- 2.39.5