drm/radeon/kms: Add an MSI quirk for Dell RS690

commit 44517c44496062180a6376cc704b33129441ce60 upstream.

Interrupts only work with MSIs.
https://bugs.freedesktop.org/show_bug.cgi?id=37679

Reported-by: Dmitry Podgorny <pasis.uax@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c
index 8f86aeb..e7ddb49 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_irq_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c
@@ -131,6 +131,12 @@ static bool radeon_msi_ok(struct radeon_device *rdev)
            (rdev->pdev->subsystem_device == 0x30c2))
                return true;
 
+       /* Dell RS690 only seems to work with MSIs. */
+       if ((rdev->pdev->device == 0x791f) &&
+           (rdev->pdev->subsystem_vendor == 0x1028) &&
+           (rdev->pdev->subsystem_device == 0x01fc))
+               return true;
+
        /* Dell RS690 only seems to work with MSIs. */
        if ((rdev->pdev->device == 0x791f) &&
            (rdev->pdev->subsystem_vendor == 0x1028) &&