forked from Minki/linux
[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: Ville Syrjälä <syrjala@sci.fi> Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -982,7 +982,7 @@ static int aty_var_to_crtc(const struct fb_info *info,
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crtc->horz_stretching &=
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~(HORZ_STRETCH_RATIO | HORZ_STRETCH_LOOP | AUTO_HORZ_RATIO |
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HORZ_STRETCH_MODE | HORZ_STRETCH_EN);
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if (xres < par->lcd_width) {
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if (xres < par->lcd_width && crtc->lcd_gen_cntl & LCD_ON) {
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do {
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/*
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* The horizontal blender misbehaves when HDisplay is less than a
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@ -1044,7 +1044,7 @@ static int aty_var_to_crtc(const struct fb_info *info,
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} while (0);
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}
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if (vdisplay < par->lcd_height) {
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if (vdisplay < par->lcd_height && crtc->lcd_gen_cntl & LCD_ON) {
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crtc->vert_stretching = (VERT_STRETCH_USE0 | VERT_STRETCH_EN |
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(((vdisplay * (VERT_STRETCH_RATIO0 + 1)) / par->lcd_height) & VERT_STRETCH_RATIO0));
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