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yaml
---
r: 77488
b: refs/heads/master
c: 67d729a
h: refs/heads/master
v: v3
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Ben Dooks authored and Russell King committed Jan 28, 2008
1 parent 8a4f0d6 commit 4c5264d
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Showing 5 changed files with 72 additions and 1 deletion.
2 changes: 1 addition & 1 deletion [refs]
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---
refs/heads/master: bdbea34ddd2e52dc73f03e7ef7197d4c0da400d6
refs/heads/master: 67d729adc0e76e21c82a2c59853f25f5f784ca79
1 change: 1 addition & 0 deletions trunk/arch/arm/mach-s3c2412/Makefile
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Expand Up @@ -12,6 +12,7 @@ obj- :=
obj-$(CONFIG_CPU_S3C2412) += s3c2412.o
obj-$(CONFIG_CPU_S3C2412) += irq.o
obj-$(CONFIG_CPU_S3C2412) += clock.o
obj-$(CONFIG_CPU_S3C2412) += gpio.o
obj-$(CONFIG_S3C2412_DMA) += dma.o
obj-$(CONFIG_S3C2412_PM) += pm.o sleep.o

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60 changes: 60 additions & 0 deletions trunk/arch/arm/mach-s3c2412/gpio.c
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/* 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 <asm/arch/regs-gpio.h>

#include <asm/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);
5 changes: 5 additions & 0 deletions trunk/include/asm-arm/arch-s3c2410/hardware.h
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Expand Up @@ -99,6 +99,11 @@ extern int s3c2440_set_dsc(unsigned int pin, unsigned int value);

#endif /* CONFIG_CPU_S3C2440 */

#ifdef CONFIG_CPU_S3C2412

extern int s3c2412_gpio_set_sleepcfg(unsigned int pin, unsigned int state);

#endif /* CONFIG_CPU_S3C2412 */

#endif /* __ASSEMBLY__ */

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5 changes: 5 additions & 0 deletions trunk/include/asm-arm/arch-s3c2410/regs-gpio.h
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Expand Up @@ -1138,6 +1138,11 @@
#define S3C2412_GPHSLPCON S3C2410_GPIOREG(0x7C)

/* definitions for each pin bit */
#define S3C2412_GPIO_SLPCON_LOW ( 0x00 )
#define S3C2412_GPIO_SLPCON_HIGH ( 0x01 )
#define S3C2412_GPIO_SLPCON_IN ( 0x02 )
#define S3C2412_GPIO_SLPCON_PULL ( 0x03 )

#define S3C2412_SLPCON_LOW(x) ( 0x00 << ((x) * 2))
#define S3C2412_SLPCON_HIGH(x) ( 0x01 << ((x) * 2))
#define S3C2412_SLPCON_IN(x) ( 0x02 << ((x) * 2))
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