[PATCH 4.9 17/65] drm/radeon: fix si_enable_smc_cac() failed issue

[Greg Kroah-Hartman]

From: Alex Deucher <alexander.deucher@xxxxxxx>

commit 2c409ba81be25516afe05ae27a4a15da01740b01 upstream.

Need to set the dte flag on this asic.

Port the fix from amdgpu:
5cb818b861be114 ("drm/amd/amdgpu: fix si_enable_smc_cac() failed issue")

Reviewed-by: Yong Zhao <yong.zhao@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/gpu/drm/radeon/si_dpm.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/gpu/drm/radeon/si_dpm.c
+++ b/drivers/gpu/drm/radeon/si_dpm.c
@@ -1956,6 +1956,7 @@ static void si_initialize_powertune_defa
 		case 0x682C:
 			si_pi->cac_weights = cac_weights_cape_verde_pro;
 			si_pi->dte_data = dte_data_sun_xt;
+			update_dte_from_pl2 = true;
 			break;
 		case 0x6825:
 		case 0x6827: