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drm/radeon/kms/legacy: set overscan regs on modeset

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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>
This commit is contained in:
Alex Deucher 2009-12-04 10:40:41 -05:00 committed by Dave Airlie
parent 64bffd0375
commit 6b02af1c1f
2 changed files with 16 additions and 0 deletions
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13
drivers/gpu/drm/radeon/radeon_legacy_crtc.c
View file

@ -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 {

3
drivers/gpu/drm/radeon/radeon_reg.h
View file

@ -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 */