diff options
| author | Jason Chen <b02280@freescale.com> | 2010-05-12 15:36:40 +0800 |
|---|---|---|
| committer | Jason Chen <b02280@freescale.com> | 2010-05-12 15:41:13 +0800 |
| commit | 88df6529ccac5c16d4e956d513b9ab6c94fc49a7 (patch) | |
| tree | f456042b649832fe2bd03ca71ef711fc4bef7334 /arch/arm/mach-mx5/early_setup.c | |
| parent | 556950cbd6a0b4b83b4f1edca538ffff8e2cbfc7 (diff) | |
ENGR00122780 ipufb: rework display device setting method
Rework the display command line options to not require new option for
every new display. Add mxcdi0fb/mxcdi1fb option <fmt> and to tell system
what kind of display device is going to use.
Use "di1_primary" to make DI1 the primary display (i.e. fb0).
The display selection is done using video= parameter.
For example on imx51:
di di_fmt video_mode
DVI: 0 RGB24 mxcdi0fb:800x600M-16@60 etc
DVI-HDMI: 0 RGB24 mxcdi0fb:720P60
LVDS: 0 LVDS666 mxcdi0fb:XGA
WVGA lcd: 1 RGB565 mxcdi1fb:800x480M-16@55
TVE: 1 YUV444 mxcdi1fb:TV-NTSC
mxcdi1fb:TV-PAL
mxcdi1fb:720P60
For example on imx53:
di di_fmt video_mode
DVI: 0 RGB24 mxcdi0fb:800x600M-16@60 etc
DVI-HDMI: 0 RGB24 mxcdi0fb:720P60
WVGA lcd: 0 RGB565 mxcdi0fb:800x480M-16@55
TVE: 1 YUV444 mxcdi1fb:TV-NTSC
mxcdi1fb:TV-PAL
mxcdi1fb:720P60
If you want to set NTSC tv as primary display, and make second display
DI0 as DVI 1024x768 resolution, just add
"di1_primary video=mxcdi0fb:RGB24,1024x768M-16@60 video=mxcdi1fb:YUV444,TV-NTSC"
to cmdline.
Signed-off-by: Rob Herring <r.herring@freescale.com>
Signed-off-by: Jason Chen <b02280@freescale.com>
Diffstat (limited to 'arch/arm/mach-mx5/early_setup.c')
| -rw-r--r-- | arch/arm/mach-mx5/early_setup.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/arm/mach-mx5/early_setup.c b/arch/arm/mach-mx5/early_setup.c new file mode 100644 index 000000000000..dd731d7f822e --- /dev/null +++ b/arch/arm/mach-mx5/early_setup.c @@ -0,0 +1,29 @@ +/* + * Copyright (C) 2010 Freescale Semiconductor, Inc. All Rights Reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include <linux/init.h> +#include <linux/string.h> + +int __initdata primary_di = { 0 }; +static int __init di_setup(char *__unused) +{ + primary_di = 1; + return 1; +} +__setup("di1_primary", di_setup); + |