linux-kernel - [PATCH] drm/msm: Enable clamp_to

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Message-Id: <20221115155535.1615278-1-robdclark@gmail.com>
Date:   Tue, 15 Nov 2022 07:55:33 -0800
From:   Rob Clark <robdclark@...il.com>
To:     dri-devel@...ts.freedesktop.org
Cc:     freedreno@...ts.freedesktop.org, linux-arm-msm@...r.kernel.org,
        Akhil P Oommen <quic_akhilpo@...cinc.com>,
        Rob Clark <robdclark@...omium.org>,
        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>, Chia-I Wu <olvaffe@...il.com>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Douglas Anderson <dianders@...omium.org>,
        linux-kernel@...r.kernel.org (open list)
Subject: [PATCH] drm/msm: Enable clamp_to_idle for 7c3

From: Rob Clark <robdclark@...omium.org>

This was overlooked.

Signed-off-by: Rob Clark <robdclark@...omium.org>
---
 drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
index ebe9599a8316..e495d8e192db 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
@@ -2029,13 +2029,6 @@ struct msm_gpu *a6xx_gpu_init(struct drm_device *dev)
 			adreno_cmp_rev(ADRENO_REV(6, 3, 5, ANY_ID), info->rev)))
 		adreno_gpu->base.hw_apriv = true;
 
-	/*
-	 * For now only clamp to idle freq for devices where this is known not
-	 * to cause power supply issues:
-	 */
-	if (info && (info->revn == 618))
-		gpu->clamp_to_idle = true;
-
 	a6xx_llc_slices_init(pdev, a6xx_gpu);
 
 	ret = a6xx_set_supported_hw(&pdev->dev, config->rev);
@@ -2050,6 +2043,13 @@ struct msm_gpu *a6xx_gpu_init(struct drm_device *dev)
 		return ERR_PTR(ret);
 	}
 
+	/*
+	 * For now only clamp to idle freq for devices where this is known not
+	 * to cause power supply issues:
+	 */
+	if (adreno_is_a618(adreno_gpu) || adreno_is_7c3(adreno_gpu))
+		gpu->clamp_to_idle = true;
+
 	/* Check if there is a GMU phandle and set it up */
 	node = of_parse_phandle(pdev->dev.of_node, "qcom,gmu", 0);
 
-- 
2.38.1