From: Jordan Crouse <jcrouse@codeaurora.org>
Date: Tue, 21 Nov 2017 12:40:51 -0700
Subject: drm/msm/adreno: Call dev_pm_opp_put()
Git-commit: aa2a2ab7b714f7b2de3849ca3379818ae15f476b
Patch-mainline: v4.16-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

We need to call dev_pm_opp_put() to put back the reference
for the OPP struct after calling the various dev_pm_opp_get_*
functions.

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/msm/adreno/a5xx_power.c    |    8 +++++++-
 drivers/gpu/drm/msm/adreno/adreno_device.c |    4 +++-
 2 files changed, 10 insertions(+), 2 deletions(-)

--- a/drivers/gpu/drm/msm/adreno/a5xx_power.c
+++ b/drivers/gpu/drm/msm/adreno/a5xx_power.c
@@ -103,10 +103,16 @@ static inline uint32_t _get_mvolts(struc
 	struct msm_drm_private *priv = dev->dev_private;
 	struct platform_device *pdev = priv->gpu_pdev;
 	struct dev_pm_opp *opp;
+	u32 ret = 0;
 
 	opp = dev_pm_opp_find_freq_exact(&pdev->dev, freq, true);
 
-	return (!IS_ERR(opp)) ? dev_pm_opp_get_voltage(opp) / 1000 : 0;
+	if (!IS_ERR(opp)) {
+		ret = dev_pm_opp_get_voltage(opp) / 1000;
+		dev_pm_opp_put(opp);
+	}
+
+	return ret;
 }
 
 /* Setup thermal limit management */
--- a/drivers/gpu/drm/msm/adreno/adreno_device.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_device.c
@@ -247,8 +247,10 @@ static int adreno_get_pwrlevels(struct d
 
 	/* Find the fastest defined rate */
 	opp = dev_pm_opp_find_freq_floor(dev, &freq);
-	if (!IS_ERR(opp))
+	if (!IS_ERR(opp)) {
 		config->fast_rate = dev_pm_opp_get_freq(opp);
+		dev_pm_opp_put(opp);
+	}
 
 	if (!config->fast_rate) {
 		DRM_DEV_INFO(dev,