drm/radeon: don't reset sdma on CIK init
authorAlex Deucher <alexander.deucher@amd.com>
Thu, 18 Sep 2014 14:18:43 +0000 (10:18 -0400)
committerAlex Deucher <alexander.deucher@amd.com>
Thu, 18 Sep 2014 22:57:09 +0000 (18:57 -0400)
Otherwise we may lose the DMA golden settings which can
lead to hangs, etc.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
drivers/gpu/drm/radeon/cik_sdma.c

index 192278bc993ce581e42b9eb2e47a207533a45cd5..c4ffa54b1e3df503dc5dd9645765b2f0927e87b2 100644 (file)
@@ -489,13 +489,6 @@ int cik_sdma_resume(struct radeon_device *rdev)
 {
        int r;
 
-       /* Reset dma */
-       WREG32(SRBM_SOFT_RESET, SOFT_RESET_SDMA | SOFT_RESET_SDMA1);
-       RREG32(SRBM_SOFT_RESET);
-       udelay(50);
-       WREG32(SRBM_SOFT_RESET, 0);
-       RREG32(SRBM_SOFT_RESET);
-
        r = cik_sdma_load_microcode(rdev);
        if (r)
                return r;