On 11/6/2021 1:50 AM, Rob Clark wrote:
From: Rob Clark <robdclark@xxxxxxxxxxxx>
Reported-by: Douglas Anderson <dianders@xxxxxxxxxxxx>
Fixes: 9bc95570175a ("drm/msm: Devfreq tuning")
Signed-off-by: Rob Clark <robdclark@xxxxxxxxxxxx>
---
drivers/gpu/drm/msm/msm_gpu_devfreq.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/msm/msm_gpu_devfreq.c b/drivers/gpu/drm/msm/msm_gpu_devfreq.c
index d32b729b4616..07f1169df89b 100644
--- a/drivers/gpu/drm/msm/msm_gpu_devfreq.c
+++ b/drivers/gpu/drm/msm/msm_gpu_devfreq.c
@@ -20,6 +20,10 @@ static int msm_devfreq_target(struct device *dev, unsigned long *freq,
struct msm_gpu *gpu = dev_to_gpu(dev);
struct dev_pm_opp *opp;
+ /*
+ * Note that devfreq_recommended_opp() can modify the freq
+ * to something that actually is in the opp table:
+ */
opp = devfreq_recommended_opp(dev, freq, flags);
/*
@@ -28,6 +32,7 @@ static int msm_devfreq_target(struct device *dev, unsigned long *freq,
*/
if (gpu->devfreq.idle_freq) {
gpu->devfreq.idle_freq = *freq;
+ dev_pm_opp_put(opp);
return 0;
}
Reviewed-by: Akhil P Oommen <akhilpo@xxxxxxxxxxxxxx>
-Akhil
