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[ARM] S3C64XX: Add standard S3C64XX 24BPP LCD GPIO setup

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Add a standard helper to configure the LCD output pins for a 24BPP
display with VSYNC/HSYNC/VDEN.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
This commit is contained in:
Ben Dooks
2008-11-19 15:41:33 +00:00
parent 58435f7b2d
commit c7a0401e61
3 changed files with 43 additions and 0 deletions
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5
arch/arm/plat-s3c64xx/Kconfig
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@@ -53,4 +53,9 @@ config S3C64XX_SETUP_I2C1
help help
Common setup code for i2c bus 1. Common setup code for i2c bus 1.
config S3C64XX_SETUP_FB_24BPP
bool
help
Common setup code for S3C64XX with an 24bpp RGB display helper.
endif endif

1
arch/arm/plat-s3c64xx/Makefile
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@@ -28,3 +28,4 @@ obj-$(CONFIG_CPU_S3C6400_CLOCK) += s3c6400-clock.o
obj-$(CONFIG_S3C64XX_SETUP_I2C0) += setup-i2c0.o obj-$(CONFIG_S3C64XX_SETUP_I2C0) += setup-i2c0.o
obj-$(CONFIG_S3C64XX_SETUP_I2C1) += setup-i2c1.o obj-$(CONFIG_S3C64XX_SETUP_I2C1) += setup-i2c1.o
obj-$(CONFIG_S3C64XX_SETUP_FB_24BPP) += setup-fb-24bpp.o

37
arch/arm/plat-s3c64xx/setup-fb-24bpp.c Normal file
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@@ -0,0 +1,37 @@
/* linux/arch/arm/plat-s3c64xx/setup-fb-24bpp.c
*
* Copyright 2008 Openmoko, Inc.
* Copyright 2008 Simtec Electronics
* Ben Dooks <ben@simtec.co.uk>
* http://armlinux.simtec.co.uk/
*
* Base S3C64XX setup information for 24bpp LCD framebuffer
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/fb.h>
#include <mach/regs-fb.h>
#include <mach/gpio.h>
#include <plat/fb.h>
#include <plat/gpio-cfg.h>
extern void s3c64xx_fb_gpio_setup_24bpp(void)
{
unsigned int gpio;
for (gpio = S3C64XX_GPI(0); gpio <= S3C64XX_GPI(15); gpio++) {
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
}
for (gpio = S3C64XX_GPJ(0); gpio <= S3C64XX_GPJ(11); gpio++) {
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
}
}