From: Alex Deucher <alexander.deuc...@amd.com> Some Dell 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 at amd.com> Cc: stable at kernel.org --- drivers/gpu/drm/radeon/radeon_irq_kms.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c index b0ed0e1..a68c6266 100644 --- a/drivers/gpu/drm/radeon/radeon_irq_kms.c +++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c @@ -125,6 +125,12 @@ 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 == 0x01fd)) + return true; + if (rdev->flags & RADEON_IS_IGP) { /* APUs work fine with MSIs */ if (rdev->family >= CHIP_PALM) -- 1.7.3.4
