From 6b02af1c1f35550ce1a9873841fe9c50b1613591 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Fri, 4 Dec 2009 10:40:41 -0500 Subject: 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 Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_legacy_crtc.c | 13 +++++++++++++ drivers/gpu/drm/radeon/radeon_reg.h | 3 +++ 2 files changed, 16 insertions(+) diff --git a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c index 4a5f2d36efe..1058ed0d373 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 34ba06dba89..c4c41c8d908 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 */ -- cgit v1.2.3