From: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/radeon/sumo_dpm.c | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/drivers/gpu/drm/radeon/sumo_dpm.c b/drivers/gpu/drm/radeon/sumo_dpm.c
index 67c85c7..f103880 100644
--- a/drivers/gpu/drm/radeon/sumo_dpm.c
+++ b/drivers/gpu/drm/radeon/sumo_dpm.c
@@ -813,6 +813,12 @@ static void sumo_program_bootup_state(struct radeon_device *rdev)
void sumo_take_smu_control(struct radeon_device *rdev, bool enable)
{
+/* This bit selects who handles display phy powergating.
+ * Clear the bit to let atom handle it.
+ * Set it to let the driver handle it.
+ * For now we just let atom handle it.
+ */
+#if 0
u32 v = RREG32(DOUT_SCRATCH3);
if (enable)
@@ -821,6 +827,7 @@ void sumo_take_smu_control(struct radeon_device *rdev, bool enable)
v &= 0xFFFFFFFB;
WREG32(DOUT_SCRATCH3, v);
+#endif
}
static void sumo_enable_sclk_ds(struct radeon_device *rdev, bool enable)
--
1.7.7.5
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