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drm/mgag200: Fix framebuffer pitch calculation
The framebuffer pitch calculation needs to be done differently for bpp == 24 - check xf86-video-mga for reference. Signed-off-by: Egbert Eich <eich@suse.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
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@ -877,7 +877,7 @@ static int mga_crtc_mode_set(struct drm_crtc *crtc,
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pitch = crtc->fb->pitches[0] / (crtc->fb->bits_per_pixel / 8);
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if (crtc->fb->bits_per_pixel == 24)
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pitch = pitch >> (4 - bppshift);
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pitch = (pitch * 3) >> (4 - bppshift);
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else
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pitch = pitch >> (4 - bppshift);
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