[PATCH 11/14] drm/msm/a6xx: Enable optional icc voting from OPP tables

From: Konrad Dybcio
Date: Thu Jan 26 2023 - 10:19:07 EST


On GMU-equipped GPUs, the GMU requests appropriate bandwidth votes
for us. This is however not the case for the other GPUs. 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@xxxxxxxxxx>
---
drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
index 62f504ed7ef5..6d6b71306ee5 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
@@ -2335,5 +2335,9 @@ struct msm_gpu *a6xx_gpu_init(struct drm_device *dev)
msm_mmu_set_fault_handler(gpu->aspace->mmu, gpu,
a6xx_fault_handler);

+ ret = dev_pm_opp_of_find_icc_paths(&pdev->dev, NULL);
+ if (ret)
+ return ERR_PTR(ret);
+
return gpu;
}
--
2.39.1