3.16.40-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Tom St Denis <tom.stdenis@xxxxxxx>
commit fb9a5b0c1c9893db2e0d18544fd49e19d784a87d upstream.
Limit clocks on a specific HD86xx part to avoid
crashes (while awaiting an appropriate PP fix).
Signed-off-by: Tom St Denis <tom.stdenis@xxxxxxx>
Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/radeon/si_dpm.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/drivers/gpu/drm/radeon/si_dpm.c
+++ b/drivers/gpu/drm/radeon/si_dpm.c
@@ -3028,6 +3028,12 @@ static void si_apply_state_adjust_rules(
max_sclk = 75000;
max_mclk = 80000;
}
+ /* limit clocks on HD8600 series */
+ if (rdev->pdev->device == 0x6660 &&
+ rdev->pdev->revision == 0x83) {
+ max_sclk = 75000;
+ max_mclk = 80000;
+ }
/* XXX validate the min clocks required for display */