[PATCH 6.0 194/862] drm/amd/display: Enable dpia support for dcn314

From: Greg Kroah-Hartman
Date: Wed Oct 19 2022 - 05:00:06 EST


From: Roman Li <roman.li@xxxxxxx>

commit f6aa84b83aee629fbbbc4ea16c2c142caf920d5a upstream.

[Why]
DCN 3.1.4 supports DPIA.

[How]
- Set dpia_supported flag for dcn314 in dmub_hw_init()
- Remove comment that becomes irrelevant after this change.

Signed-off-by: Roman Li <roman.li@xxxxxxx>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@xxxxxxx>
Reviewed-by: Mario Limonciello <mario.limonciello@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx # 6.0.x
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -1109,7 +1109,8 @@ static int dm_dmub_hw_init(struct amdgpu
hw_params.fb[i] = &fb_info->fb[i];

switch (adev->ip_versions[DCE_HWIP][0]) {
- case IP_VERSION(3, 1, 3): /* Only for this asic hw internal rev B0 */
+ case IP_VERSION(3, 1, 3):
+ case IP_VERSION(3, 1, 4):
hw_params.dpia_supported = true;
hw_params.disable_dpia = adev->dm.dc->debug.dpia_debug.bits.disable_dpia;
break;