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drm/radeon: don't reset sdma on CIK init 

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
This commit is contained in:
Alex Deucher 2014-09-18 10:18:43 -04:00
parent 31a25e2caf
commit 799028d5d8
1 changed files with 0 additions and 7 deletions
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7
drivers/gpu/drm/radeon/cik_sdma.c
View File

@ -489,13 +489,6 @@ int cik_sdma_resume(struct radeon_device *rdev)
{ {
int r; 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); r = cik_sdma_load_microcode(rdev);
if (r) if (r)
return r; return r;