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Commit e98cef1e authored by Ville Syrjälä's avatar Ville Syrjälä Committed by Linus Torvalds
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[PATCH] atyfb: Don't stretch with CRT 



The overlay on 3D Rage LT Pro doesn't work correctly if stretching is
enabled when using only a CRT.

Signed-off-by: default avatarVille Syrjälä <syrjala@sci.fi>
Signed-off-by: default avatarAntonino Daplas <adaplas@pol.net>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent a87d7fdd

drivers/video/aty/atyfb_base.c

+2 −2
Original line number Diff line number Diff line
@@ -982,7 +982,7 @@ static int aty_var_to_crtc(const struct fb_info *info, 
		crtc->horz_stretching &=

			~(HORZ_STRETCH_RATIO | HORZ_STRETCH_LOOP | AUTO_HORZ_RATIO |

			HORZ_STRETCH_MODE | HORZ_STRETCH_EN);

		if (xres < par->lcd_width) {

		if (xres < par->lcd_width && crtc->lcd_gen_cntl & LCD_ON) {

			do {

				/*

				* The horizontal blender misbehaves when HDisplay is less than a
@@ -1044,7 +1044,7 @@ static int aty_var_to_crtc(const struct fb_info *info, 
			} while (0);

		}



		if (vdisplay < par->lcd_height) {

		if (vdisplay < par->lcd_height && crtc->lcd_gen_cntl & LCD_ON) {

			crtc->vert_stretching = (VERT_STRETCH_USE0 | VERT_STRETCH_EN |

				(((vdisplay * (VERT_STRETCH_RATIO0 + 1)) / par->lcd_height) & VERT_STRETCH_RATIO0));