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atmel_lcdfb: support 16bit BGR:565 mode, remove unsupported 15bit modes 

Allow framebuffer to be configured in 16bit mode when panel is wired in
(the default) BGR configuration, and don't claim to support 15bit input
modes, which the LCD controller cannot handle.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
This commit is contained in:
Peter Korsgaard 2011-10-13 16:52:50 +02:00 committed by Florian Tobias Schandinat
parent b20f86625d
commit 787f9fd232
1 changed files with 3 additions and 9 deletions
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12
drivers/video/atmel_lcdfb.c
View File

@ -421,24 +421,18 @@ static int atmel_lcdfb_check_var(struct fb_var_screeninfo *var,
var->red.length = var->green.length = var->blue.length
= var->bits_per_pixel;
break;
case 15:
case 16:
if (sinfo->lcd_wiring_mode == ATMEL_LCDC_WIRING_RGB) {
/* RGB:565 mode */
var->red.offset = 11;
var->blue.offset = 0;
var->green.length = 6;
} else if (sinfo->lcd_wiring_mode == ATMEL_LCDC_WIRING_RGB555) {
var->red.offset = 10;
var->blue.offset = 0;
var->green.length = 5;
} else {
/* BGR:555 mode */
/* BGR:565 mode */
var->red.offset = 0;
var->blue.offset = 10;
var->green.length = 5;
var->blue.offset = 11;
}
var->green.offset = 5;
var->green.length = 6;
var->red.length = var->blue.length = 5;
break;
case 32: