From 4440e0e11d2e9eb13e6edf44f89019e4f8a4dd58 Mon Sep 17 00:00:00 2001 From: Haavard Skinnemoen Date: Sat, 21 Jul 2007 04:38:02 -0700 Subject: atmel_lcdfb: use spare bits in 32bpp mode as alpha channel Set var->transp.offset and var->transp.length in 32bpp mode to indicate that the 8 otherwise unused bits can be used for transparency. Signed-off-by: Haavard Skinnemoen Signed-off-by: Nicolas Ferre Cc: "Antonino A. Daplas" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/atmel_lcdfb.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers/video/atmel_lcdfb.c') diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c index 69ec93ce436a..235b618b4117 100644 --- a/drivers/video/atmel_lcdfb.c +++ b/drivers/video/atmel_lcdfb.c @@ -219,8 +219,11 @@ static int atmel_lcdfb_check_var(struct fb_var_screeninfo *var, var->blue.offset = 10; var->red.length = var->green.length = var->blue.length = 5; break; - case 24: case 32: + var->transp.offset = 24; + var->transp.length = 8; + /* fall through */ + case 24: var->red.offset = 0; var->green.offset = 8; var->blue.offset = 16; -- cgit v1.2.3