drm/radeon/kms: fix sideport detection on newer rs880 boards

The meaning of ucMemoryType changed on recent boards, however,
ulBootUpSidePortClock should be set properly across all boards.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index b015915441ba094111add8383435e9558914103c..61141981880d7d03908a9a582f0d5a0a9951d2b3 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -1181,7 +1181,7 @@ bool radeon_atombios_sideport_present(struct radeon_device *rdev)
                                return true;
                        break;
                case 2:
-                       if (igp_info->info_2.ucMemoryType & 0x0f)
+                       if (igp_info->info_2.ulBootUpSidePortClock)
                                return true;
                        break;
                default: