mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-20 19:23:57 +08:00
a09e64fbc0
This just leaves include/asm-arm/plat-* to deal with. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
61 lines
1.2 KiB
C
61 lines
1.2 KiB
C
/* linux/arch/arm/mach-s3c2412/gpio.c
|
|
*
|
|
* Copyright (c) 2007 Simtec Electronics
|
|
* Ben Dooks <ben@simtec.co.uk>
|
|
*
|
|
* http://armlinux.simtec.co.uk/.
|
|
*
|
|
* S3C2412/S3C2413 specific GPIO support
|
|
*
|
|
* 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/module.h>
|
|
#include <linux/interrupt.h>
|
|
|
|
#include <asm/mach/arch.h>
|
|
#include <asm/mach/map.h>
|
|
|
|
#include <mach/regs-gpio.h>
|
|
|
|
#include <mach/hardware.h>
|
|
|
|
int s3c2412_gpio_set_sleepcfg(unsigned int pin, unsigned int state)
|
|
{
|
|
void __iomem *base = S3C24XX_GPIO_BASE(pin);
|
|
unsigned long offs = S3C2410_GPIO_OFFSET(pin);
|
|
unsigned long flags;
|
|
unsigned long slpcon;
|
|
|
|
offs *= 2;
|
|
|
|
if (pin < S3C2410_GPIO_BANKB)
|
|
return -EINVAL;
|
|
|
|
if (pin >= S3C2410_GPIO_BANKF &&
|
|
pin <= S3C2410_GPIO_BANKG)
|
|
return -EINVAL;
|
|
|
|
if (pin > (S3C2410_GPIO_BANKH + 32))
|
|
return -EINVAL;
|
|
|
|
local_irq_save(flags);
|
|
|
|
slpcon = __raw_readl(base + 0x0C);
|
|
|
|
slpcon &= ~(3 << offs);
|
|
slpcon |= state << offs;
|
|
|
|
__raw_writel(slpcon, base + 0x0C);
|
|
|
|
local_irq_restore(flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
EXPORT_SYMBOL(s3c2412_gpio_set_sleepcfg);
|