drm/radeon/kms: Add MSI quirk for HP RS690

commit b362105f7f5223fa4d2e03ceeea0e51da754ccc6 upstream.

Some HP laptops only seem to work with MSIs.  This
looks like a platform/bios bug.

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=37679

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c
index f0e660b10febe1be3bc01360fcd7d106fa2f16fa..b0ed0e16456358f065be367ed8f85e57f8767644 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_irq_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c
@@ -118,6 +118,13 @@ static bool radeon_msi_ok(struct radeon_device *rdev)
        if (rdev->flags & RADEON_IS_AGP)
                return false;
 
+       /* Quirks */
+       /* HP RS690 only seems to work with MSIs. */
+       if ((rdev->pdev->device == 0x791f) &&
+           (rdev->pdev->subsystem_vendor == 0x103c) &&
+           (rdev->pdev->subsystem_device == 0x30c2))
+               return true;
+
        if (rdev->flags & RADEON_IS_IGP) {
                /* APUs work fine with MSIs */
                if (rdev->family >= CHIP_PALM)