Since the clock scaling is based on fb divider adjustments,
make sure the other pll parameters are the same.
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/radeon/rs780_dpm.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/radeon/rs780_dpm.c b/drivers/gpu/drm/radeon/rs780_dpm.c
index afb7584..31487ce 100644
--- a/drivers/gpu/drm/radeon/rs780_dpm.c
+++ b/drivers/gpu/drm/radeon/rs780_dpm.c
@@ -449,6 +449,12 @@ static int rs780_set_engine_clock_scaling(struct radeon_device *rdev,
if (ret)
return ret;
+ if ((min_dividers.ref_div != max_dividers.ref_div) ||
+ (min_dividers.post_div != max_dividers.post_div) ||
+ (max_dividers.ref_div != current_max_dividers.ref_div) ||
+ (max_dividers.post_div != current_max_dividers.post_div))
+ return -EINVAL;
+
rs780_force_fbdiv(rdev, max_dividers.fb_div);
if (max_dividers.fb_div > min_dividers.fb_div) {
--
1.8.3.1
_______________________________________________
dri-devel mailing list
dri-devel@xxxxxxxxxxxxxxxxxxxxx
http://lists.freedesktop.org/mailman/listinfo/dri-devel
