linux-kernel - [PATCH 4/5] drm: msm: a6xx: Fix off by one error when setting GPU freq

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Date:   Tue, 31 Mar 2020 13:25:52 +0530
From:   Sharat Masetty <smasetty@...eaurora.org>
To:     freedreno@...ts.freedesktop.org, devicetree@...r.kernel.org
Cc:     dri-devel@...edesktop.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org, jcrouse@...eaurora.org,
        mka@...omium.org, sibis@...eaurora.org, saravanak@...gle.com,
        viresh.kumar@...aro.org, Sharat Masetty <smasetty@...eaurora.org>
Subject: [PATCH 4/5] drm: msm: a6xx: Fix off by one error when setting GPU freq

This patch fixes an error in the for loop, thereby allowing search on
the full list of possible GPU power levels.

Signed-off-by: Sharat Masetty <smasetty@...eaurora.org>
---
 drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
index 489d9b6..81b8559 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
@@ -176,7 +176,7 @@ void a6xx_gmu_set_freq(struct msm_gpu *gpu, unsigned long freq)
 	if (freq == gmu->freq)
 		return;

-	for (perf_index = 0; perf_index < gmu->nr_gpu_freqs - 1; perf_index++)
+	for (perf_index = 0; perf_index < gmu->nr_gpu_freqs; perf_index++)
 		if (freq == gmu->gpu_freqs[perf_index])
 			break;

--
2.7.4