The patch titled
radeonfb: support 24bpp (32bpp minus alpha)
has been added to the -mm tree. Its filename is
radeonfb-support-24bpp-32bpp-minus-alpha.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: radeonfb: support 24bpp (32bpp minus alpha)
From: Kimball Murray <kimball.murray@xxxxxxxxx>
Allow unpacked, 24bpp mode to work in the radeonfb driver.
I am submitting this on behalf of Charlotte Richardson at Stratus
Technologies, to support one of the Stratus hardware platforms.
Signed-off-by: Charlotte Richardson <charlotte.richardson@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
drivers/video/aty/radeon_base.c | 3 ---
drivers/video/aty/radeonfb.h | 6 +++++-
2 files changed, 5 insertions(+), 4 deletions(-)
diff -puN drivers/video/aty/radeon_base.c~radeonfb-support-24bpp-32bpp-minus-alpha drivers/video/aty/radeon_base.c
--- a/drivers/video/aty/radeon_base.c~radeonfb-support-24bpp-32bpp-minus-alpha
+++ a/drivers/video/aty/radeon_base.c
@@ -719,11 +719,8 @@ static int radeonfb_check_var (struct fb
v.bits_per_pixel = 16;
break;
case 17 ... 24:
-#if 0 /* Doesn't seem to work */
v.bits_per_pixel = 24;
break;
-#endif
- return -EINVAL;
case 25 ... 32:
v.bits_per_pixel = 32;
break;
diff -puN drivers/video/aty/radeonfb.h~radeonfb-support-24bpp-32bpp-minus-alpha drivers/video/aty/radeonfb.h
--- a/drivers/video/aty/radeonfb.h~radeonfb-support-24bpp-32bpp-minus-alpha
+++ a/drivers/video/aty/radeonfb.h
@@ -517,6 +517,8 @@ static inline int round_div(int num, int
static inline int var_to_depth(const struct fb_var_screeninfo *var)
{
+ if (var->bits_per_pixel == 32)
+ return (var->transp.length == 8) ? 32 : 24;
if (var->bits_per_pixel != 16)
return var->bits_per_pixel;
return (var->green.length == 5) ? 15 : 16;
@@ -531,7 +533,9 @@ static inline u32 radeon_get_dstbpp(u16
return DST_15BPP;
case 16:
return DST_16BPP;
- case 32:
+ case 24:
+ return DST_24BPP;
+ case 32:
return DST_32BPP;
default:
return 0;
_
Patches currently in -mm which might be from kimball.murray@xxxxxxxxx are
radeonfb-support-24bpp-32bpp-minus-alpha.patch
-
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