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path: root/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
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Diffstat (limited to 'drivers/gpu/drm/msm/adreno/a6xx_gpu.c')
-rw-r--r--drivers/gpu/drm/msm/adreno/a6xx_gpu.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
index c98cdb1e9326..4083d0cad782 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
@@ -855,14 +855,16 @@ static int hw_init(struct msm_gpu *gpu)
/* Clear GBIF halt in case GX domain was not collapsed */
if (adreno_is_a619_holi(adreno_gpu)) {
gpu_write(gpu, REG_A6XX_GBIF_HALT, 0);
+ gpu_read(gpu, REG_A6XX_GBIF_HALT);
+
gpu_write(gpu, REG_A6XX_RBBM_GPR0_CNTL, 0);
- /* Let's make extra sure that the GPU can access the memory.. */
- mb();
+ gpu_read(gpu, REG_A6XX_RBBM_GPR0_CNTL);
} else if (a6xx_has_gbif(adreno_gpu)) {
gpu_write(gpu, REG_A6XX_GBIF_HALT, 0);
+ gpu_read(gpu, REG_A6XX_GBIF_HALT);
+
gpu_write(gpu, REG_A6XX_RBBM_GBIF_HALT, 0);
- /* Let's make extra sure that the GPU can access the memory.. */
- mb();
+ gpu_read(gpu, REG_A6XX_RBBM_GBIF_HALT);
}
/* Some GPUs are stubborn and take their sweet time to unhalt GBIF! */