diff options
| author | Alex Deucher <alexdeucher@gmail.com> | 2014-05-08 20:04:03 -0400 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2014-06-09 13:29:14 +0100 |
| commit | 063ab9cb6308a0806d623c8d6dda5cb2b3b87fce (patch) | |
| tree | 3cb34dabf33ec3bee0c6839f378ebe88465710c4 | |
| parent | 7219b6feb15328ac7cdd417368ceea54733ed2dc (diff) | |
drm/radeon: handle non-VGA class pci devices with ATRM
commit d8ade3526b2aa0505132c404c05a38b73ea15490 upstream.
Newer PX systems have non-VGA pci class dGPUs. Update
the ATRM fetch method to handle those cases.
bug:
https://bugzilla.kernel.org/show_bug.cgi?id=75401
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
[bwh: Backported to 3.2: s/ACPI_HANDLE()/DEVICE_ACPI_HANDLE()/]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_bios.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_bios.c b/drivers/gpu/drm/radeon/radeon_bios.c index d306cc8fdea..ccf324b451c 100644 --- a/drivers/gpu/drm/radeon/radeon_bios.c +++ b/drivers/gpu/drm/radeon/radeon_bios.c @@ -173,6 +173,20 @@ static bool radeon_atrm_get_bios(struct radeon_device *rdev) } } + if (!found) { + while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_OTHER << 8, pdev)) != NULL) { + dhandle = DEVICE_ACPI_HANDLE(&pdev->dev); + if (!dhandle) + continue; + + status = acpi_get_handle(dhandle, "ATRM", &atrm_handle); + if (!ACPI_FAILURE(status)) { + found = true; + break; + } + } + } + if (!found) return false; |