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gpio/s3c24xx: move gpio driver into drivers/gpio/

Browse Source 
Cc: Ben Dooks <ben-linux@fluff.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This commit is contained in:
Kukjin Kim 2011-08-26 11:03:03 +09:00
parent b6fd41e29d
commit 536137bc9f
10 changed files with 67 additions and 117 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
arch/arm/mach-s3c2410/Kconfig
View File

@ -8,7 +8,6 @@ config CPU_S3C2410
select CPU_ARM920T
select S3C_GPIO_PULL_UP
select S3C2410_CLOCK
select S3C2410_GPIO
select CPU_LLSERIAL_S3C2410
select S3C2410_PM if PM
select S3C2410_CPUFREQ if CPU_FREQ_S3C24XX
@ -28,11 +27,6 @@ config S3C2410_PM
help
Power Management code common to S3C2410 and better
config S3C2410_GPIO
bool
help
GPIO code for S3C2410 and similar processors
config SIMTEC_NOR
bool
help

1
arch/arm/mach-s3c2410/Makefile
View File

@ -13,7 +13,6 @@ obj-$(CONFIG_CPU_S3C2410) += s3c2410.o
obj-$(CONFIG_CPU_S3C2410_DMA) += dma.o
obj-$(CONFIG_CPU_S3C2410_DMA) += dma.o
obj-$(CONFIG_S3C2410_PM) += pm.o sleep.o
obj-$(CONFIG_S3C2410_GPIO) += gpio.o
obj-$(CONFIG_S3C2410_CPUFREQ) += cpu-freq.o
obj-$(CONFIG_S3C2410_PLLTABLE) += pll.o

1
arch/arm/mach-s3c2412/Kconfig
View File

@ -9,7 +9,6 @@ config CPU_S3C2412
select CPU_LLSERIAL_S3C2440
select S3C2412_PM if PM
select S3C2412_DMA if S3C2410_DMA
select S3C2410_GPIO
help
Support for the S3C2412 and S3C2413 SoCs from the S3C24XX line

1
arch/arm/mach-s3c2412/Makefile
View File

@ -12,7 +12,6 @@ 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
obj-$(CONFIG_S3C2412_PM_SLEEP) += sleep.o

2
arch/arm/mach-s3c2440/Kconfig
View File

@ -8,7 +8,6 @@ config CPU_S3C2440
select S3C_GPIO_PULL_UP
select S3C2410_CLOCK
select S3C2410_PM if PM
select S3C2410_GPIO
select S3C2440_DMA if S3C2410_DMA
select CPU_S3C244X
select CPU_LLSERIAL_S3C2440
@ -20,7 +19,6 @@ config CPU_S3C2442
select CPU_ARM920T
select S3C_GPIO_PULL_DOWN
select S3C2410_CLOCK
select S3C2410_GPIO
select S3C2410_PM if PM
select CPU_S3C244X
select CPU_LLSERIAL_S3C2440

2
arch/arm/plat-s3c24xx/Makefile
View File

@ -15,8 +15,6 @@ obj- :=
obj-y += cpu.o
obj-y += irq.o
obj-y += devs.o
obj-y += gpio.o
obj-y += gpiolib.o
obj-y += clock.o
obj-$(CONFIG_S3C24XX_DCLK) += clock-dclk.o

96
arch/arm/plat-s3c24xx/gpio.c
View File

@ -1,96 +0,0 @@
/* linux/arch/arm/plat-s3c24xx/gpio.c
*
* Copyright (c) 2004-2010 Simtec Electronics
* Ben Dooks <ben@simtec.co.uk>
*
* S3C24XX GPIO support
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/gpio.h>
#include <linux/io.h>
#include <mach/hardware.h>
#include <mach/gpio-fns.h>
#include <asm/irq.h>
#include <mach/regs-gpio.h>
#include <plat/gpio-core.h>
/* gpiolib wrappers until these are totally eliminated */
void s3c2410_gpio_pullup(unsigned int pin, unsigned int to)
{
int ret;
WARN_ON(to); /* should be none of these left */
if (!to) {
/* if pull is enabled, try first with up, and if that
* fails, try using down */
ret = s3c_gpio_setpull(pin, S3C_GPIO_PULL_UP);
if (ret)
s3c_gpio_setpull(pin, S3C_GPIO_PULL_DOWN);
} else {
s3c_gpio_setpull(pin, S3C_GPIO_PULL_NONE);
}
}
EXPORT_SYMBOL(s3c2410_gpio_pullup);
void s3c2410_gpio_setpin(unsigned int pin, unsigned int to)
{
/* do this via gpiolib until all users removed */
gpio_request(pin, "temporary");
gpio_set_value(pin, to);
gpio_free(pin);
}
EXPORT_SYMBOL(s3c2410_gpio_setpin);
unsigned int s3c2410_gpio_getpin(unsigned int pin)
{
struct s3c_gpio_chip *chip = s3c_gpiolib_getchip(pin);
unsigned long offs = pin - chip->chip.base;
return __raw_readl(chip->base + 0x04) & (1<< offs);
}
EXPORT_SYMBOL(s3c2410_gpio_getpin);
unsigned int s3c2410_modify_misccr(unsigned int clear, unsigned int change)
{
unsigned long flags;
unsigned long misccr;
local_irq_save(flags);
misccr = __raw_readl(S3C24XX_MISCCR);
misccr &= ~clear;
misccr ^= change;
__raw_writel(misccr, S3C24XX_MISCCR);
local_irq_restore(flags);
return misccr;
}
EXPORT_SYMBOL(s3c2410_modify_misccr);

4
drivers/gpio/Kconfig
View File

@ -135,6 +135,10 @@ config GPIO_PLAT_SAMSUNG
def_bool y
depends on SAMSUNG_GPIOLIB_4BIT
config GPIO_S3C24XX
def_bool y
depends on PLAT_S3C24XX
config GPIO_S5PC100
def_bool y
depends on CPU_S5PC100

1
drivers/gpio/Makefile
View File

@ -40,6 +40,7 @@ obj-$(CONFIG_GPIO_PL061) += gpio-pl061.o
obj-$(CONFIG_GPIO_RDC321X) += gpio-rdc321x.o
obj-$(CONFIG_GPIO_PLAT_SAMSUNG) += gpio-plat-samsung.o
obj-$(CONFIG_GPIO_S3C24XX) += gpio-s3c24xx.o
obj-$(CONFIG_GPIO_S5PC100) += gpio-s5pc100.o
obj-$(CONFIG_GPIO_S5PV210) += gpio-s5pv210.o

70
arch/arm/plat-s3c24xx/gpiolib.c → drivers/gpio/gpio-s3c24xx.c
View File

@ -1,5 +1,4 @@
/* linux/arch/arm/plat-s3c24xx/gpiolib.c
*
/*
* Copyright (c) 2008-2010 Simtec Electronics
* http://armlinux.simtec.co.uk/
* Ben Dooks <ben@simtec.co.uk>
@ -19,16 +18,17 @@
#include <linux/ioport.h>
#include <linux/io.h>
#include <linux/gpio.h>
#include <asm/irq.h>
#include <mach/hardware.h>
#include <mach/gpio-fns.h>
#include <mach/regs-gpio.h>
#include <plat/gpio-core.h>
#include <plat/gpio-cfg.h>
#include <plat/gpio-cfg-helpers.h>
#include <mach/hardware.h>
#include <asm/irq.h>
#include <plat/pm.h>
#include <mach/regs-gpio.h>
static int s3c24xx_gpiolib_banka_input(struct gpio_chip *chip, unsigned offset)
{
return -EINVAL;
@ -210,7 +210,6 @@ struct s3c_gpio_chip s3c24xx_gpios[] = {
},
};
static __init int s3c24xx_gpiolib_init(void)
{
struct s3c_gpio_chip *chip = s3c24xx_gpios;
@ -225,5 +224,60 @@ static __init int s3c24xx_gpiolib_init(void)
return 0;
}
core_initcall(s3c24xx_gpiolib_init);
/* gpiolib wrappers until these are totally eliminated */
void s3c2410_gpio_pullup(unsigned int pin, unsigned int to)
{
int ret;
WARN_ON(to); /* should be none of these left */
if (!to) {
/* if pull is enabled, try first with up, and if that
* fails, try using down */
ret = s3c_gpio_setpull(pin, S3C_GPIO_PULL_UP);
if (ret)
s3c_gpio_setpull(pin, S3C_GPIO_PULL_DOWN);
} else {
s3c_gpio_setpull(pin, S3C_GPIO_PULL_NONE);
}
}
EXPORT_SYMBOL(s3c2410_gpio_pullup);
void s3c2410_gpio_setpin(unsigned int pin, unsigned int to)
{
/* do this via gpiolib until all users removed */
gpio_request(pin, "temporary");
gpio_set_value(pin, to);
gpio_free(pin);
}
EXPORT_SYMBOL(s3c2410_gpio_setpin);
unsigned int s3c2410_gpio_getpin(unsigned int pin)
{
struct s3c_gpio_chip *chip = s3c_gpiolib_getchip(pin);
unsigned long offs = pin - chip->chip.base;
return __raw_readl(chip->base + 0x04) & (1<< offs);
}
EXPORT_SYMBOL(s3c2410_gpio_getpin);
unsigned int s3c2410_modify_misccr(unsigned int clear, unsigned int change)
{
unsigned long flags;
unsigned long misccr;
local_irq_save(flags);
misccr = __raw_readl(S3C24XX_MISCCR);
misccr &= ~clear;
misccr ^= change;
__raw_writel(misccr, S3C24XX_MISCCR);
local_irq_restore(flags);
return misccr;
}
EXPORT_SYMBOL(s3c2410_modify_misccr);