e856bb1f8d
Rename mach-s3c2410/include/mach/gpio-core.h to mach/gpio-track.h so that it can be included by <plat/gpio-core.h> when needed. Eliminate all other empty gpio-core.h files and just include the <plat/gpio-core.h> as necessary. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
63 lines
1.3 KiB
C
63 lines
1.3 KiB
C
/* linux/arch/arm/plat-s5pc1xx/gpio-config.c
|
|
*
|
|
* Copyright 2009 Samsung Electronics
|
|
*
|
|
* S5PC1XX GPIO Configuration.
|
|
*
|
|
* Based on plat-s3c64xx/gpio-config.c
|
|
*
|
|
* 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/module.h>
|
|
#include <linux/gpio.h>
|
|
#include <linux/io.h>
|
|
|
|
#include <plat/gpio-core.h>
|
|
#include <plat/gpio-cfg-s5pc1xx.h>
|
|
|
|
s5p_gpio_drvstr_t s5p_gpio_get_drvstr(unsigned int pin, unsigned int off)
|
|
{
|
|
struct s3c_gpio_chip *chip = s3c_gpiolib_getchip(pin);
|
|
void __iomem *reg;
|
|
int shift = off * 2;
|
|
u32 drvstr;
|
|
|
|
if (!chip)
|
|
return -EINVAL;
|
|
|
|
reg = chip->base + 0x0C;
|
|
|
|
drvstr = __raw_readl(reg);
|
|
drvstr = 0xffff & (0x3 << shift);
|
|
drvstr = drvstr >> shift;
|
|
|
|
return (__force s5p_gpio_drvstr_t)drvstr;
|
|
}
|
|
EXPORT_SYMBOL(s5p_gpio_get_drvstr);
|
|
|
|
int s5p_gpio_set_drvstr(unsigned int pin, unsigned int off,
|
|
s5p_gpio_drvstr_t drvstr)
|
|
{
|
|
struct s3c_gpio_chip *chip = s3c_gpiolib_getchip(pin);
|
|
void __iomem *reg;
|
|
int shift = off * 2;
|
|
u32 tmp;
|
|
|
|
if (!chip)
|
|
return -EINVAL;
|
|
|
|
reg = chip->base + 0x0C;
|
|
|
|
tmp = __raw_readl(reg);
|
|
tmp |= drvstr << shift;
|
|
|
|
__raw_writel(tmp, reg);
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(s5p_gpio_set_drvstr);
|