linux-kernel - [ 49/86] drm: Use C8 instead of RGB332 when determining the format from depth/bpp

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Message-Id: <20130226235917.992896998@linuxfoundation.org>
Date:	Tue, 26 Feb 2013 16:07:57 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org,
	Ville Syrjälä 
	<ville.syrjala@...ux.intel.com>, Dave Airlie <airlied@...il.com>,
	Daniel Vetter <daniel.vetter@...ll.ch>
Subject: [ 49/86] drm: Use C8 instead of RGB332 when determining the format from depth/bpp

3.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ville Syrjälä <ville.syrjala@...ux.intel.com>

commit d84f031bd230fdf9c3b7734940c859bf28b90219 upstream.

Support for real RGB332 is a rarity, most hardware only really support
C8. So use C8 instead of RGB332 when determining the format based on
depth/bpp.

This fixes 8bpp fbcon on i915, since i915 will only accept C8 and not
RGB332.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=59572
Signed-off-by: Ville Syrjälä <ville.syrjala@...ux.intel.com>
Acked-by: Dave Airlie <airlied@...il.com>
Tested-by: mlsemon35@...il.com
Signed-off-by: Daniel Vetter <daniel.vetter@...ll.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/gpu/drm/drm_crtc.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -2023,7 +2023,7 @@ uint32_t drm_mode_legacy_fb_format(uint3
 
 	switch (bpp) {
 	case 8:
-		fmt = DRM_FORMAT_RGB332;
+		fmt = DRM_FORMAT_C8;
 		break;
 	case 16:
 		if (depth == 15)


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