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drm/amd/display: Fix the checking condition in dmub aux handling

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commit bc70e11b550d37fbd9eaed0f113ba560894f1609 upstream.

[Why & How]
Fix the checking condition for detecting AUX_RET_ERROR_PROTOCOL_ERROR.
It was wrongly checking by "not equals to"

Reviewed-by: Ray Wu <ray.wu@amd.com>
Signed-off-by: Wayne Lin <Wayne.Lin@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 1db6c9e9b62e1a8912f0a281c941099fca678da3)
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Wayne Lin
2025-04-20 16:29:07 +08:00
committed by Greg Kroah-Hartman
parent c8a91debb0
commit cee6856fbf
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
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@@ -11055,7 +11055,7 @@ int amdgpu_dm_process_dmub_aux_transfer_sync(
* Transient states before tunneling is enabled could
* lead to this error. We can ignore this for now.
*/
if (p_notify->result != AUX_RET_ERROR_PROTOCOL_ERROR) {
if (p_notify->result == AUX_RET_ERROR_PROTOCOL_ERROR) {
DRM_WARN("DPIA AUX failed on 0x%x(%d), error %d\n",
payload->address, payload->length,
p_notify->result);