| From | Jiri Slaby <> | Subject | [PATCH 3.12 026/111] drm/radeon: handle non-VGA class pci devices with ATRM | Date | Mon, 23 Jun 2014 10:31:01 +0200 |
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From: Alex Deucher <alexdeucher@gmail.com>
3.12-stable review patch. If anyone has any objections, please let me know.
===============
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> Signed-off-by: Jiri Slaby <jslaby@suse.cz> --- drivers/gpu/drm/radeon/radeon_bios.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+)
diff --git a/drivers/gpu/drm/radeon/radeon_bios.c b/drivers/gpu/drm/radeon/radeon_bios.c index 061b227dae0c..b131520521e4 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; -- 2.0.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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