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

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Date:   Wed, 19 Oct 2022 10:24:41 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Roman Li <roman.li@....com>,
        Nicholas Kazlauskas <Nicholas.Kazlauskas@....com>,
        Mario Limonciello <mario.limonciello@....com>,
        Alex Deucher <alexander.deucher@....com>
Subject: [PATCH 6.0 194/862] drm/amd/display: Enable dpia support for dcn314

From: Roman Li <roman.li@....com>

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@....com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@....com>
Reviewed-by: Mario Limonciello <mario.limonciello@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Cc: stable@...r.kernel.org # 6.0.x
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 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;