[PATCH v2 4/4] drm/msm/a6xx: Add a comment to acd_probe()

[Akhil P Oommen <akhilpo@oss.qualcomm.com>]

It is not obvious why we can skip error checking of
dev_pm_opp_find_freq_exact() API. Add a comment explaining it.

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Akhil P Oommen <akhilpo@oss.qualcomm.com>
---
 drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
index 4c0510cc784864da990af8cad086176a5d92ae8a..f81e28fb6f2ac4b1ac15fe50cfb488572009003d 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
@@ -1695,6 +1695,10 @@ static int a6xx_gmu_acd_probe(struct a6xx_gmu *gmu)
 		u32 val;
 
 		freq = gmu->gpu_freqs[i];
+		/*
+		 * This is not expected to fail because we are passing back a
+		 * frequency which was retrieved just a bit earlier
+		 */
 		opp = dev_pm_opp_find_freq_exact(&gpu->pdev->dev, freq, true);
 		np = dev_pm_opp_get_of_node(opp);
 

-- 
2.50.1