Commit 8f32ddd8 authored by Lukasz Luba's avatar Lukasz Luba Committed by Rob Clark
Browse files

drm/msm/gpu: Check the status of registration to PM QoS 



There is a need to check the returned value of the registration function.
In case of returned error, print that and stop the init process.

Fixes: 7c0ffcd4 ("drm/msm/gpu: Respect PM QoS constraints")
Signed-off-by: default avatarLukasz Luba <lukasz.luba@arm.com>
Patchwork: https://patchwork.freedesktop.org/patch/620336/


Signed-off-by: default avatarRob Clark <robdclark@chromium.org>
parent 394679f3

drivers/gpu/drm/msm/msm_gpu_devfreq.c

+7 −2
Original line number Diff line number Diff line
@@ -140,6 +140,7 @@ void msm_devfreq_init(struct msm_gpu *gpu) 
{

	struct msm_gpu_devfreq *df = &gpu->devfreq;

	struct msm_drm_private *priv = gpu->dev->dev_private;

	int ret;



	/* We need target support to do devfreq */

	if (!gpu->funcs->gpu_busy)
@@ -156,8 +157,12 @@ void msm_devfreq_init(struct msm_gpu *gpu) 


	mutex_init(&df->lock);



	dev_pm_qos_add_request(&gpu->pdev->dev, &df->boost_freq,

	ret = dev_pm_qos_add_request(&gpu->pdev->dev, &df->boost_freq,

				     DEV_PM_QOS_MIN_FREQUENCY, 0);

	if (ret < 0) {

		DRM_DEV_ERROR(&gpu->pdev->dev, "Couldn't initialize QoS\n");

		return;

	}



	msm_devfreq_profile.initial_freq = gpu->fast_rate;