linux-kernel - [PATCH v2 6/6] drm/msm/adreno: Enable optional icc voting from OPP tables

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Message-Id: <20230223-topic-opp-v2-6-24ed24cd7358@linaro.org>
Date:   Thu, 23 Feb 2023 02:47:42 +0100
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Rob Clark <robdclark@...il.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Sean Paul <sean@...rly.run>, David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>
Cc:     linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Konrad Dybcio <konrad.dybcio@...aro.org>
Subject: [PATCH v2 6/6] drm/msm/adreno: Enable optional icc voting from OPP
 tables

Add the dev_pm_opp_of_find_icc_paths() call to let the OPP framework
handle bus voting as part of power level setting.

Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
 drivers/gpu/drm/msm/adreno/adreno_device.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c
index 36f062c7582f..5142a4c72cfc 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_device.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_device.c
@@ -548,6 +548,10 @@ static int adreno_bind(struct device *dev, struct device *master, void *data)
 		return PTR_ERR(gpu);
 	}
 
+	ret = dev_pm_opp_of_find_icc_paths(dev, NULL);
+	if (ret)
+		return ret;
+
 	return 0;
 }
 

-- 
2.39.2