[PATCH 5/6] drm: msm: a6xx: use dev_pm_opp_set_bw to set DDR bandwidth

From: Sharat Masetty
Date: Thu May 14 2020 - 06:55:11 EST


This patches replaces the previously used static DDR vote and uses
dev_pm_opp_set_bw() to scale GPU->DDR bandwidth along with scaling
GPU frequency.

Signed-off-by: Sharat Masetty <smasetty@xxxxxxxxxxxxxx>
---
drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
index 2d8124b..79433d3 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
@@ -141,11 +141,7 @@ void a6xx_gmu_set_freq(struct msm_gpu *gpu, struct dev_pm_opp *opp)

gmu->freq = gmu->gpu_freqs[perf_index];

- /*
- * Eventually we will want to scale the path vote with the frequency but
- * for now leave it at max so that the performance is nominal.
- */
- icc_set_bw(gpu->icc_path, 0, MBps_to_icc(7216));
+ dev_pm_opp_set_bw(&gpu->pdev->dev, opp);
}

unsigned long a6xx_gmu_get_freq(struct msm_gpu *gpu)
--
2.7.4