drm/amd/display: Don't load DMCU for Raven 1
[WHY]
Some early Raven boards had a bad SBIOS that doesn't play nicely with
the DMCU FW. We thought the issues were fixed by ignoring errors on DMCU
load but that doesn't seem to be the case. We've still seen reports of
users unable to boot their systems at all.
[HOW]
Disable DMCU load on Raven 1. Only load it for Raven 2 and Picasso.
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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 995f9df..0680c74 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -29,6 +29,7 @@
#include "dm_services_types.h"
#include "dc.h"
#include "dc/inc/core_types.h"
+#include "dal_asic_id.h"
#include "vid.h"
#include "amdgpu.h"
@@ -640,7 +641,7 @@
static int load_dmcu_fw(struct amdgpu_device *adev)
{
- const char *fw_name_dmcu;
+ const char *fw_name_dmcu = NULL;
int r;
const struct dmcu_firmware_header_v1_0 *hdr;
@@ -663,7 +664,14 @@
case CHIP_VEGA20:
return 0;
case CHIP_RAVEN:
- fw_name_dmcu = FIRMWARE_RAVEN_DMCU;
+ if (ASICREV_IS_PICASSO(adev->external_rev_id))
+ fw_name_dmcu = FIRMWARE_RAVEN_DMCU;
+#if defined(CONFIG_DRM_AMD_DC_DCN1_01)
+ else if (ASICREV_IS_RAVEN2(adev->external_rev_id))
+ fw_name_dmcu = FIRMWARE_RAVEN_DMCU;
+#endif
+ else
+ return 0;
break;
default:
DRM_ERROR("Unsupported ASIC type: 0x%X\n", adev->asic_type);
