Gitweb: http://git.kernel.org/linus/6b02af1c1f35550ce1a9873841fe9c50b1613591
Commit: 6b02af1c1f35550ce1a9873841fe9c50b1613591
Parent: 64bffd03756249e11b8651ccf33ac3a50a93ed4c
Author: Alex Deucher <alexdeucher@gmail.com>
AuthorDate: Fri Dec 4 10:40:41 2009 -0500
Committer: Dave Airlie <airlied@redhat.com>
CommitDate: Tue Dec 8 08:50:54 2009 +1000
drm/radeon/kms/legacy: set overscan regs on modeset
These can end up with garbage otherwise.
fixes rh bug 537140
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
drivers/gpu/drm/radeon/radeon_legacy_crtc.c | 13 +++++++++++++
drivers/gpu/drm/radeon/radeon_reg.h | 3 +++
2 files changed, 16 insertions(+), 0 deletions(-)
diff --git a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
index 4a5f2d3..1058ed0 100644
--- a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
+++ b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
@@ -30,6 +30,18 @@
#include "radeon.h"
#include "atom.h"
+static void radeon_overscan_setup(struct drm_crtc *crtc,
+ struct drm_display_mode *mode)
+{
+ struct drm_device *dev = crtc->dev;
+ struct radeon_device *rdev = dev->dev_private;
+ struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
+
+ WREG32(RADEON_OVR_CLR + radeon_crtc->crtc_offset, 0);
+ WREG32(RADEON_OVR_WID_LEFT_RIGHT + radeon_crtc->crtc_offset, 0);
+ WREG32(RADEON_OVR_WID_TOP_BOTTOM + radeon_crtc->crtc_offset, 0);
+}
+
static void radeon_legacy_rmx_mode_set(struct drm_crtc *crtc,
struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
@@ -1045,6 +1057,7 @@ static int radeon_crtc_mode_set(struct drm_crtc *crtc,
radeon_crtc_set_base(crtc, x, y, old_fb);
radeon_set_crtc_timing(crtc, adjusted_mode);
radeon_set_pll(crtc, adjusted_mode);
+ radeon_overscan_setup(crtc, adjusted_mode);
if (radeon_crtc->crtc_id == 0) {
radeon_legacy_rmx_mode_set(crtc, mode, adjusted_mode);
} else {
diff --git a/drivers/gpu/drm/radeon/radeon_reg.h b/drivers/gpu/drm/radeon/radeon_reg.h
index 34ba06d..c4c41c8 100644
--- a/drivers/gpu/drm/radeon/radeon_reg.h
+++ b/drivers/gpu/drm/radeon/radeon_reg.h
@@ -1366,6 +1366,9 @@
#define RADEON_OVR_CLR 0x0230
#define RADEON_OVR_WID_LEFT_RIGHT 0x0234
#define RADEON_OVR_WID_TOP_BOTTOM 0x0238
+#define RADEON_OVR2_CLR 0x0330
+#define RADEON_OVR2_WID_LEFT_RIGHT 0x0334
+#define RADEON_OVR2_WID_TOP_BOTTOM 0x0338
/* first capture unit */
--
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