drm/radeon: re-enable mclk dpm on R7 260X asics

If the new mc ucode is available.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

1 files changed, 6 insertions, 2 deletions

diff --git a/drivers/gpu/drm/radeon/ci_dpm.c b/drivers/gpu/drm/radeon/ci_dpm.c
index 18e91ee2c8b7..10dae4106c08 100644
--- a/drivers/gpu/drm/radeon/ci_dpm.c
+++ b/drivers/gpu/drm/radeon/ci_dpm.c
@@ -21,8 +21,10 @@
  *
  */
 
+#include <linux/firmware.h>
 #include "drmP.h"
 #include "radeon.h"
+#include "radeon_ucode.h"
 #include "cikd.h"
 #include "r600_dpm.h"
 #include "ci_dpm.h"
@@ -5147,9 +5149,11 @@ int ci_dpm_init(struct radeon_device *rdev)
         pi->mclk_dpm_key_disabled = 0;
         pi->pcie_dpm_key_disabled = 0;
 
-        /* mclk dpm is unstable on some R7 260X cards */
-        if (rdev->pdev->device == 0x6658)
+        /* mclk dpm is unstable on some R7 260X cards with the old mc ucode */
+        if ((rdev->pdev->device == 0x6658) &&
+            (rdev->mc_fw->size == (BONAIRE_MC_UCODE_SIZE * 4))) {
                 pi->mclk_dpm_key_disabled = 1;
+        }
 
         pi->caps_sclk_ds = true;