From 536137bc9ff1738a7bee9b31047a7cd56860180e Mon Sep 17 00:00:00 2001 From: Kukjin Kim Date: Fri, 26 Aug 2011 11:03:03 +0900 Subject: gpio/s3c24xx: move gpio driver into drivers/gpio/ Cc: Ben Dooks Acked-by: Grant Likely Signed-off-by: Kukjin Kim diff --git a/arch/arm/mach-s3c2410/Kconfig b/arch/arm/mach-s3c2410/Kconfig index 7245a55..3700cf3 100644 --- a/arch/arm/mach-s3c2410/Kconfig +++ b/arch/arm/mach-s3c2410/Kconfig @@ -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 diff --git a/arch/arm/mach-s3c2410/Makefile b/arch/arm/mach-s3c2410/Makefile index 8169535..782fd81 100644 --- a/arch/arm/mach-s3c2410/Makefile +++ b/arch/arm/mach-s3c2410/Makefile @@ -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-$(CONFIG_S3C2410_PLLTABLE) += pll.o diff --git a/arch/arm/mach-s3c2412/Kconfig b/arch/arm/mach-s3c2412/Kconfig index c2cf4e5..b8b9029 100644 --- a/arch/arm/mach-s3c2412/Kconfig +++ b/arch/arm/mach-s3c2412/Kconfig @@ -9,7 +9,6 @@ config CPU_S3C2412 select CPU_LLSERIAL_S3C2440 select S3C2412_PM if PM select S3C2412_DMA if S3C2410_DMA - select S3C2410_GPIO help Support for the S3C2412 and S3C2413 SoCs from the S3C24XX line diff --git a/arch/arm/mach-s3c2412/Makefile b/arch/arm/mach-s3c2412/Makefile index 6c48a91..7e4d95f 100644 --- a/arch/arm/mach-s3c2412/Makefile +++ b/arch/arm/mach-s3c2412/Makefile @@ -12,7 +12,6 @@ obj- := obj-$(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 diff --git a/arch/arm/mach-s3c2440/Kconfig b/arch/arm/mach-s3c2440/Kconfig index 50825a3..c461fb8 100644 --- a/arch/arm/mach-s3c2440/Kconfig +++ b/arch/arm/mach-s3c2440/Kconfig @@ -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 diff --git a/arch/arm/plat-s3c24xx/Makefile b/arch/arm/plat-s3c24xx/Makefile index 0291bd6..e4f4649 100644 --- a/arch/arm/plat-s3c24xx/Makefile +++ b/arch/arm/plat-s3c24xx/Makefile @@ -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 diff --git a/arch/arm/plat-s3c24xx/gpio.c b/arch/arm/plat-s3c24xx/gpio.c deleted file mode 100644 index 2f3d7c0..0000000 --- a/arch/arm/plat-s3c24xx/gpio.c +++ /dev/null @@ -1,96 +0,0 @@ -/* linux/arch/arm/plat-s3c24xx/gpio.c - * - * Copyright (c) 2004-2010 Simtec Electronics - * Ben Dooks - * - * 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 -#include -#include -#include -#include -#include -#include - -#include -#include -#include - -#include - -#include - -/* 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); diff --git a/arch/arm/plat-s3c24xx/gpiolib.c b/arch/arm/plat-s3c24xx/gpiolib.c deleted file mode 100644 index 243b641..0000000 --- a/arch/arm/plat-s3c24xx/gpiolib.c +++ /dev/null @@ -1,229 +0,0 @@ -/* linux/arch/arm/plat-s3c24xx/gpiolib.c - * - * Copyright (c) 2008-2010 Simtec Electronics - * http://armlinux.simtec.co.uk/ - * Ben Dooks - * - * S3C24XX GPIOlib 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. -*/ - -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include - -#include - -static int s3c24xx_gpiolib_banka_input(struct gpio_chip *chip, unsigned offset) -{ - return -EINVAL; -} - -static int s3c24xx_gpiolib_banka_output(struct gpio_chip *chip, - unsigned offset, int value) -{ - struct s3c_gpio_chip *ourchip = to_s3c_gpio(chip); - void __iomem *base = ourchip->base; - unsigned long flags; - unsigned long dat; - unsigned long con; - - local_irq_save(flags); - - con = __raw_readl(base + 0x00); - dat = __raw_readl(base + 0x04); - - dat &= ~(1 << offset); - if (value) - dat |= 1 << offset; - - __raw_writel(dat, base + 0x04); - - con &= ~(1 << offset); - - __raw_writel(con, base + 0x00); - __raw_writel(dat, base + 0x04); - - local_irq_restore(flags); - return 0; -} - -static int s3c24xx_gpiolib_bankf_toirq(struct gpio_chip *chip, unsigned offset) -{ - if (offset < 4) - return IRQ_EINT0 + offset; - - if (offset < 8) - return IRQ_EINT4 + offset - 4; - - return -EINVAL; -} - -static struct s3c_gpio_cfg s3c24xx_gpiocfg_banka = { - .set_config = s3c_gpio_setcfg_s3c24xx_a, - .get_config = s3c_gpio_getcfg_s3c24xx_a, -}; - -struct s3c_gpio_cfg s3c24xx_gpiocfg_default = { - .set_config = s3c_gpio_setcfg_s3c24xx, - .get_config = s3c_gpio_getcfg_s3c24xx, -}; - -struct s3c_gpio_chip s3c24xx_gpios[] = { - [0] = { - .base = S3C2410_GPACON, - .pm = __gpio_pm(&s3c_gpio_pm_1bit), - .config = &s3c24xx_gpiocfg_banka, - .chip = { - .base = S3C2410_GPA(0), - .owner = THIS_MODULE, - .label = "GPIOA", - .ngpio = 24, - .direction_input = s3c24xx_gpiolib_banka_input, - .direction_output = s3c24xx_gpiolib_banka_output, - }, - }, - [1] = { - .base = S3C2410_GPBCON, - .pm = __gpio_pm(&s3c_gpio_pm_2bit), - .chip = { - .base = S3C2410_GPB(0), - .owner = THIS_MODULE, - .label = "GPIOB", - .ngpio = 16, - }, - }, - [2] = { - .base = S3C2410_GPCCON, - .pm = __gpio_pm(&s3c_gpio_pm_2bit), - .chip = { - .base = S3C2410_GPC(0), - .owner = THIS_MODULE, - .label = "GPIOC", - .ngpio = 16, - }, - }, - [3] = { - .base = S3C2410_GPDCON, - .pm = __gpio_pm(&s3c_gpio_pm_2bit), - .chip = { - .base = S3C2410_GPD(0), - .owner = THIS_MODULE, - .label = "GPIOD", - .ngpio = 16, - }, - }, - [4] = { - .base = S3C2410_GPECON, - .pm = __gpio_pm(&s3c_gpio_pm_2bit), - .chip = { - .base = S3C2410_GPE(0), - .label = "GPIOE", - .owner = THIS_MODULE, - .ngpio = 16, - }, - }, - [5] = { - .base = S3C2410_GPFCON, - .pm = __gpio_pm(&s3c_gpio_pm_2bit), - .chip = { - .base = S3C2410_GPF(0), - .owner = THIS_MODULE, - .label = "GPIOF", - .ngpio = 8, - .to_irq = s3c24xx_gpiolib_bankf_toirq, - }, - }, - [6] = { - .base = S3C2410_GPGCON, - .pm = __gpio_pm(&s3c_gpio_pm_2bit), - .irq_base = IRQ_EINT8, - .chip = { - .base = S3C2410_GPG(0), - .owner = THIS_MODULE, - .label = "GPIOG", - .ngpio = 16, - .to_irq = samsung_gpiolib_to_irq, - }, - }, { - .base = S3C2410_GPHCON, - .pm = __gpio_pm(&s3c_gpio_pm_2bit), - .chip = { - .base = S3C2410_GPH(0), - .owner = THIS_MODULE, - .label = "GPIOH", - .ngpio = 11, - }, - }, - /* GPIOS for the S3C2443 and later devices. */ - { - .base = S3C2440_GPJCON, - .pm = __gpio_pm(&s3c_gpio_pm_2bit), - .chip = { - .base = S3C2410_GPJ(0), - .owner = THIS_MODULE, - .label = "GPIOJ", - .ngpio = 16, - }, - }, { - .base = S3C2443_GPKCON, - .pm = __gpio_pm(&s3c_gpio_pm_2bit), - .chip = { - .base = S3C2410_GPK(0), - .owner = THIS_MODULE, - .label = "GPIOK", - .ngpio = 16, - }, - }, { - .base = S3C2443_GPLCON, - .pm = __gpio_pm(&s3c_gpio_pm_2bit), - .chip = { - .base = S3C2410_GPL(0), - .owner = THIS_MODULE, - .label = "GPIOL", - .ngpio = 15, - }, - }, { - .base = S3C2443_GPMCON, - .pm = __gpio_pm(&s3c_gpio_pm_2bit), - .chip = { - .base = S3C2410_GPM(0), - .owner = THIS_MODULE, - .label = "GPIOM", - .ngpio = 2, - }, - }, -}; - - -static __init int s3c24xx_gpiolib_init(void) -{ - struct s3c_gpio_chip *chip = s3c24xx_gpios; - int gpn; - - for (gpn = 0; gpn < ARRAY_SIZE(s3c24xx_gpios); gpn++, chip++) { - if (!chip->config) - chip->config = &s3c24xx_gpiocfg_default; - - s3c_gpiolib_add(chip); - } - - return 0; -} - -core_initcall(s3c24xx_gpiolib_init); diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index d539efd..5654e1b 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -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 diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile index 9588948..c7f1c00 100644 --- a/drivers/gpio/Makefile +++ b/drivers/gpio/Makefile @@ -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 diff --git a/drivers/gpio/gpio-s3c24xx.c b/drivers/gpio/gpio-s3c24xx.c new file mode 100644 index 0000000..ff61031 --- /dev/null +++ b/drivers/gpio/gpio-s3c24xx.c @@ -0,0 +1,283 @@ +/* + * Copyright (c) 2008-2010 Simtec Electronics + * http://armlinux.simtec.co.uk/ + * Ben Dooks + * + * S3C24XX GPIOlib 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. +*/ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include +#include +#include +#include + +static int s3c24xx_gpiolib_banka_input(struct gpio_chip *chip, unsigned offset) +{ + return -EINVAL; +} + +static int s3c24xx_gpiolib_banka_output(struct gpio_chip *chip, + unsigned offset, int value) +{ + struct s3c_gpio_chip *ourchip = to_s3c_gpio(chip); + void __iomem *base = ourchip->base; + unsigned long flags; + unsigned long dat; + unsigned long con; + + local_irq_save(flags); + + con = __raw_readl(base + 0x00); + dat = __raw_readl(base + 0x04); + + dat &= ~(1 << offset); + if (value) + dat |= 1 << offset; + + __raw_writel(dat, base + 0x04); + + con &= ~(1 << offset); + + __raw_writel(con, base + 0x00); + __raw_writel(dat, base + 0x04); + + local_irq_restore(flags); + return 0; +} + +static int s3c24xx_gpiolib_bankf_toirq(struct gpio_chip *chip, unsigned offset) +{ + if (offset < 4) + return IRQ_EINT0 + offset; + + if (offset < 8) + return IRQ_EINT4 + offset - 4; + + return -EINVAL; +} + +static struct s3c_gpio_cfg s3c24xx_gpiocfg_banka = { + .set_config = s3c_gpio_setcfg_s3c24xx_a, + .get_config = s3c_gpio_getcfg_s3c24xx_a, +}; + +struct s3c_gpio_cfg s3c24xx_gpiocfg_default = { + .set_config = s3c_gpio_setcfg_s3c24xx, + .get_config = s3c_gpio_getcfg_s3c24xx, +}; + +struct s3c_gpio_chip s3c24xx_gpios[] = { + [0] = { + .base = S3C2410_GPACON, + .pm = __gpio_pm(&s3c_gpio_pm_1bit), + .config = &s3c24xx_gpiocfg_banka, + .chip = { + .base = S3C2410_GPA(0), + .owner = THIS_MODULE, + .label = "GPIOA", + .ngpio = 24, + .direction_input = s3c24xx_gpiolib_banka_input, + .direction_output = s3c24xx_gpiolib_banka_output, + }, + }, + [1] = { + .base = S3C2410_GPBCON, + .pm = __gpio_pm(&s3c_gpio_pm_2bit), + .chip = { + .base = S3C2410_GPB(0), + .owner = THIS_MODULE, + .label = "GPIOB", + .ngpio = 16, + }, + }, + [2] = { + .base = S3C2410_GPCCON, + .pm = __gpio_pm(&s3c_gpio_pm_2bit), + .chip = { + .base = S3C2410_GPC(0), + .owner = THIS_MODULE, + .label = "GPIOC", + .ngpio = 16, + }, + }, + [3] = { + .base = S3C2410_GPDCON, + .pm = __gpio_pm(&s3c_gpio_pm_2bit), + .chip = { + .base = S3C2410_GPD(0), + .owner = THIS_MODULE, + .label = "GPIOD", + .ngpio = 16, + }, + }, + [4] = { + .base = S3C2410_GPECON, + .pm = __gpio_pm(&s3c_gpio_pm_2bit), + .chip = { + .base = S3C2410_GPE(0), + .label = "GPIOE", + .owner = THIS_MODULE, + .ngpio = 16, + }, + }, + [5] = { + .base = S3C2410_GPFCON, + .pm = __gpio_pm(&s3c_gpio_pm_2bit), + .chip = { + .base = S3C2410_GPF(0), + .owner = THIS_MODULE, + .label = "GPIOF", + .ngpio = 8, + .to_irq = s3c24xx_gpiolib_bankf_toirq, + }, + }, + [6] = { + .base = S3C2410_GPGCON, + .pm = __gpio_pm(&s3c_gpio_pm_2bit), + .irq_base = IRQ_EINT8, + .chip = { + .base = S3C2410_GPG(0), + .owner = THIS_MODULE, + .label = "GPIOG", + .ngpio = 16, + .to_irq = samsung_gpiolib_to_irq, + }, + }, { + .base = S3C2410_GPHCON, + .pm = __gpio_pm(&s3c_gpio_pm_2bit), + .chip = { + .base = S3C2410_GPH(0), + .owner = THIS_MODULE, + .label = "GPIOH", + .ngpio = 11, + }, + }, + /* GPIOS for the S3C2443 and later devices. */ + { + .base = S3C2440_GPJCON, + .pm = __gpio_pm(&s3c_gpio_pm_2bit), + .chip = { + .base = S3C2410_GPJ(0), + .owner = THIS_MODULE, + .label = "GPIOJ", + .ngpio = 16, + }, + }, { + .base = S3C2443_GPKCON, + .pm = __gpio_pm(&s3c_gpio_pm_2bit), + .chip = { + .base = S3C2410_GPK(0), + .owner = THIS_MODULE, + .label = "GPIOK", + .ngpio = 16, + }, + }, { + .base = S3C2443_GPLCON, + .pm = __gpio_pm(&s3c_gpio_pm_2bit), + .chip = { + .base = S3C2410_GPL(0), + .owner = THIS_MODULE, + .label = "GPIOL", + .ngpio = 15, + }, + }, { + .base = S3C2443_GPMCON, + .pm = __gpio_pm(&s3c_gpio_pm_2bit), + .chip = { + .base = S3C2410_GPM(0), + .owner = THIS_MODULE, + .label = "GPIOM", + .ngpio = 2, + }, + }, +}; + +static __init int s3c24xx_gpiolib_init(void) +{ + struct s3c_gpio_chip *chip = s3c24xx_gpios; + int gpn; + + for (gpn = 0; gpn < ARRAY_SIZE(s3c24xx_gpios); gpn++, chip++) { + if (!chip->config) + chip->config = &s3c24xx_gpiocfg_default; + + s3c_gpiolib_add(chip); + } + + 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); -- cgit v0.10.2