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Commit 6b02af1c authored by Alex Deucher's avatar Alex Deucher Committed by Dave Airlie
Browse files

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



These can end up with garbage otherwise.

fixes rh bug 537140

Signed-off-by: default avatarAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 64bffd03

drivers/gpu/drm/radeon/radeon_legacy_crtc.c

+13 −0
Original line number Diff line number Diff line
@@ -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 {

drivers/gpu/drm/radeon/radeon_reg.h

+3 −0
Original line number Diff line number Diff line
@@ -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 */