releases/3.1.1/drm-radeon-kms-add-msi-quirk-for-dell-rs690.patch

   1 From 01e718ec194e30b3e8eb3858c742c13649757efc Mon Sep 17 00:00:00 2001
   2 From: Alex Deucher <alexander.deucher@amd.com>
   3 Date: Tue, 1 Nov 2011 14:14:18 -0400
   4 Subject: drm/radeon/kms: Add MSI quirk for Dell RS690
   5
   6 From: Alex Deucher <alexander.deucher@amd.com>
   7
   8 commit 01e718ec194e30b3e8eb3858c742c13649757efc upstream.
   9
  10 Some Dell laptops only seem to work with MSIs.  This
  11 looks like a platform/bios bug.
  12
  13 Fixes:
  14 https://bugs.freedesktop.org/show_bug.cgi?id=37679
  15
  16 Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
  17 Signed-off-by: Dave Airlie <airlied@redhat.com>
  18 Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
  19
  20 ---
  21  drivers/gpu/drm/radeon/radeon_irq_kms.c |    6 ++++++
  22  1 file changed, 6 insertions(+)
  23
  24 --- a/drivers/gpu/drm/radeon/radeon_irq_kms.c
  25 +++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c
  26 @@ -125,6 +125,12 @@ static bool radeon_msi_ok(struct radeon_
  27             (rdev->pdev->subsystem_device == 0x30c2))
  28                 return true;
  29
  30 +       /* Dell RS690 only seems to work with MSIs. */
  31 +       if ((rdev->pdev->device == 0x791f) &&
  32 +           (rdev->pdev->subsystem_vendor == 0x1028) &&
  33 +           (rdev->pdev->subsystem_device == 0x01fd))
  34 +               return true;
  35 +
  36         if (rdev->flags & RADEON_IS_IGP) {
  37                 /* APUs work fine with MSIs */
  38                 if (rdev->family >= CHIP_PALM)