From: Aaron Ma <aaron.ma@canonical.com>
To: harry.wentland@amd.com, sunpeng.li@amd.com,
alexander.deucher@amd.com, christian.koenig@amd.com,
airlied@linux.ie, daniel@ffwll.ch, amd-gfx@lists.freedesktop.org,
dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
mapengyu@gmail.com, aaron.ma@canonical.com
Subject: [PATCH] drm/amd/display: add dmcub check on RENOIR
Date: Wed, 8 Jul 2020 04:16:22 -0400 [thread overview]
Message-ID: <20200708081622.3109902-1-aaron.ma@canonical.com> (raw)
RENOIR loads dmub fw not dmcu, check dmcu only will prevent loading iram,
it breaks backlight control.
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=208277
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 10ac8076d4f2..db5e0bb0d935 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -1358,7 +1358,7 @@ static int dm_late_init(void *handle)
struct dmcu *dmcu = NULL;
bool ret;
- if (!adev->dm.fw_dmcu)
+ if (!adev->dm.fw_dmcu && !adev->dm.dmub_fw)
return detect_mst_link_for_all_connectors(adev->ddev);
dmcu = adev->dm.dc->res_pool->dmcu;
--
2.25.1
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next reply other threads:[~2020-07-09 7:05 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-08 8:16 Aaron Ma [this message]
2020-07-08 14:15 ` [PATCH] drm/amd/display: add dmcub check on RENOIR Deucher, Alexander
2020-07-08 14:30 ` Kazlauskas, Nicholas
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