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authorAlex Deucher <alexdeucher@gmail.com>2014-05-08 20:04:03 -0400
committerChristian König <christian.koenig@amd.com>2014-05-20 14:42:00 +0200
commitd8ade3526b2aa0505132c404c05a38b73ea15490 (patch)
tree8e4e6e84af53642d1e5b4e62900d7a6b0cd4ee60
parent89d2618dbd114e679b860c3de1df3fe43ee40f6e (diff)
drm/radeon: handle non-VGA class pci devices with ATRM
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> Cc: stable@vger.kernel.org
-rw-r--r--drivers/gpu/drm/radeon/radeon_bios.c14
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 b3633d9a5317..9ab30976287d 100644
--- a/drivers/gpu/drm/radeon/radeon_bios.c
+++ b/drivers/gpu/drm/radeon/radeon_bios.c
@@ -196,6 +196,20 @@ 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 = 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;