diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c index 0783e4b5486a..d27bdc999777 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c @@ -887,10 +887,21 @@ static int adreno_get_pwrlevels(struct device *dev, DBG("fast_rate=%u, slow_rate=27000000", gpu->fast_rate); /* Check for an interconnect path for the bus */ - gpu->icc_path = of_icc_get(dev, NULL); + gpu->icc_path = of_icc_get(dev, "gfx-mem"); + if (!gpu->icc_path) { + /* + * Keep compatbility with device trees that don't have an + * interconnect-names property. + */ + gpu->icc_path = of_icc_get(dev, NULL); + } if (IS_ERR(gpu->icc_path)) gpu->icc_path = NULL; + gpu->ocmem_icc_path = of_icc_get(dev, "ocmem"); + if (IS_ERR(gpu->ocmem_icc_path)) + gpu->ocmem_icc_path = NULL; + return 0; } @@ -977,6 +988,7 @@ void adreno_gpu_cleanup(struct adreno_gpu *adreno_gpu) release_firmware(adreno_gpu->fw[i]); icc_put(gpu->icc_path); + icc_put(gpu->ocmem_icc_path); msm_gpu_cleanup(&adreno_gpu->base); } diff --git a/drivers/gpu/drm/msm/msm_gpu.h b/drivers/gpu/drm/msm/msm_gpu.h index ab8f0f9c9dc8..be5bc2e8425c 100644 --- a/drivers/gpu/drm/msm/msm_gpu.h +++ b/drivers/gpu/drm/msm/msm_gpu.h @@ -111,8 +111,15 @@ struct msm_gpu { struct clk *ebi1_clk, *core_clk, *rbbmtimer_clk; uint32_t fast_rate; + /* The gfx-mem interconnect path that's used by all GPU types. */ struct icc_path *icc_path; + /* + * Second interconnect path for some A3xx and all A4xx GPUs to the + * On Chip MEMory (OCMEM). + */ + struct icc_path *ocmem_icc_path; + /* Hang and Inactivity Detection: */ #define DRM_MSM_INACTIVE_PERIOD 66 /* in ms (roughly four frames) */