[PATCH 1/8] ARM: plat-iop: move the GPIO driver to drivers/gpio
From: Linus Walleij <hidden>
Date: 2013-09-20 20:17:29
Also in:
linux-gpio
Subsystem:
arm port, gpio subsystem, the rest · Maintainers:
Russell King, Linus Walleij, Bartosz Golaszewski, Linus Torvalds
Move the IOP GPIO driver to live with its siblings in the GPIO subsystem. Cc: Aaro Koskinen <aaro.koskinen@iki.fi> Cc: Lennert Buytenhek <kernel@wantstofly.org> Cc: Dan Williams <redacted> Cc: Mikael Pettersson <redacted> Signed-off-by: Linus Walleij <redacted> --- ChangeLog v1->v2: - Fix spelling error ICP->IOP --- arch/arm/Kconfig | 2 + arch/arm/plat-iop/Makefile | 2 - arch/arm/plat-iop/gpio.c | 93 ---------------------------------------------- drivers/gpio/Kconfig | 9 +++++ drivers/gpio/Makefile | 1 + drivers/gpio/gpio-iop.c | 93 ++++++++++++++++++++++++++++++++++++++++++++++ 6 files changed, 105 insertions(+), 95 deletions(-) delete mode 100644 arch/arm/plat-iop/gpio.c create mode 100644 drivers/gpio/gpio-iop.c
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 3f7714d..fc8c092 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig@@ -457,6 +457,7 @@ config ARCH_IOP32X depends on MMU select ARCH_REQUIRE_GPIOLIB select CPU_XSCALE + select GPIO_IOP select NEED_MACH_GPIO_H select NEED_RET_TO_USER select PCI
@@ -470,6 +471,7 @@ config ARCH_IOP33X depends on MMU select ARCH_REQUIRE_GPIOLIB select CPU_XSCALE + select GPIO_IOP select NEED_MACH_GPIO_H select NEED_RET_TO_USER select PCI
diff --git a/arch/arm/plat-iop/Makefile b/arch/arm/plat-iop/Makefile
index a99dc15..224e56c 100644
--- a/arch/arm/plat-iop/Makefile
+++ b/arch/arm/plat-iop/Makefile@@ -5,7 +5,6 @@ obj-y := # IOP32X -obj-$(CONFIG_ARCH_IOP32X) += gpio.o obj-$(CONFIG_ARCH_IOP32X) += i2c.o obj-$(CONFIG_ARCH_IOP32X) += pci.o obj-$(CONFIG_ARCH_IOP32X) += setup.o
@@ -16,7 +15,6 @@ obj-$(CONFIG_ARCH_IOP32X) += pmu.o obj-$(CONFIG_ARCH_IOP32X) += restart.o # IOP33X -obj-$(CONFIG_ARCH_IOP33X) += gpio.o obj-$(CONFIG_ARCH_IOP33X) += i2c.o obj-$(CONFIG_ARCH_IOP33X) += pci.o obj-$(CONFIG_ARCH_IOP33X) += setup.o
diff --git a/arch/arm/plat-iop/gpio.c b/arch/arm/plat-iop/gpio.c
deleted file mode 100644
index 697de6d..0000000
--- a/arch/arm/plat-iop/gpio.c
+++ /dev/null@@ -1,93 +0,0 @@ -/* - * arch/arm/plat-iop/gpio.c - * GPIO handling for Intel IOP3xx processors. - * - * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org> - * - * 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. - */ - -#include <linux/device.h> -#include <linux/init.h> -#include <linux/types.h> -#include <linux/errno.h> -#include <linux/gpio.h> -#include <linux/export.h> -#include <asm/hardware/iop3xx.h> -#include <mach/gpio.h> - -void gpio_line_config(int line, int direction) -{ - unsigned long flags; - - local_irq_save(flags); - if (direction == GPIO_IN) { - *IOP3XX_GPOE |= 1 << line; - } else if (direction == GPIO_OUT) { - *IOP3XX_GPOE &= ~(1 << line); - } - local_irq_restore(flags); -} -EXPORT_SYMBOL(gpio_line_config); - -int gpio_line_get(int line) -{ - return !!(*IOP3XX_GPID & (1 << line)); -} -EXPORT_SYMBOL(gpio_line_get); - -void gpio_line_set(int line, int value) -{ - unsigned long flags; - - local_irq_save(flags); - if (value == GPIO_LOW) { - *IOP3XX_GPOD &= ~(1 << line); - } else if (value == GPIO_HIGH) { - *IOP3XX_GPOD |= 1 << line; - } - local_irq_restore(flags); -} -EXPORT_SYMBOL(gpio_line_set); - -static int iop3xx_gpio_direction_input(struct gpio_chip *chip, unsigned gpio) -{ - gpio_line_config(gpio, GPIO_IN); - return 0; -} - -static int iop3xx_gpio_direction_output(struct gpio_chip *chip, unsigned gpio, int level) -{ - gpio_line_set(gpio, level); - gpio_line_config(gpio, GPIO_OUT); - return 0; -} - -static int iop3xx_gpio_get_value(struct gpio_chip *chip, unsigned gpio) -{ - return gpio_line_get(gpio); -} - -static void iop3xx_gpio_set_value(struct gpio_chip *chip, unsigned gpio, int value) -{ - gpio_line_set(gpio, value); -} - -static struct gpio_chip iop3xx_chip = { - .label = "iop3xx", - .direction_input = iop3xx_gpio_direction_input, - .get = iop3xx_gpio_get_value, - .direction_output = iop3xx_gpio_direction_output, - .set = iop3xx_gpio_set_value, - .base = 0, - .ngpio = IOP3XX_N_GPIOS, -}; - -static int __init iop3xx_gpio_setup(void) -{ - return gpiochip_add(&iop3xx_chip); -} -arch_initcall(iop3xx_gpio_setup);
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index b6ed304..cc30426 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig@@ -320,6 +320,15 @@ config GPIO_ICH If unsure, say N. +config GPIO_IOP + tristate "Intel IOP GPIO" + depends on ARM && (ARCH_IOP32X || ARCH_IOP33X) + help + Say yes here to support the GPIO functionality of a number of Intel + IOP32X or IOP33X. + + If unsure, say N. + config GPIO_VX855 tristate "VIA VX855/VX875 GPIO" depends on PCI
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index 98e23eb..06e5662 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile@@ -28,6 +28,7 @@ obj-$(CONFIG_GPIO_F7188X) += gpio-f7188x.o obj-$(CONFIG_GPIO_GE_FPGA) += gpio-ge.o obj-$(CONFIG_GPIO_GRGPIO) += gpio-grgpio.o obj-$(CONFIG_GPIO_ICH) += gpio-ich.o +obj-$(CONFIG_GPIO_IOP) += gpio-iop.o obj-$(CONFIG_GPIO_IT8761E) += gpio-it8761e.o obj-$(CONFIG_GPIO_JANZ_TTL) += gpio-janz-ttl.o obj-$(CONFIG_GPIO_KEMPLD) += gpio-kempld.o
diff --git a/drivers/gpio/gpio-iop.c b/drivers/gpio/gpio-iop.c
new file mode 100644
index 0000000..697de6d
--- /dev/null
+++ b/drivers/gpio/gpio-iop.c@@ -0,0 +1,93 @@ +/* + * arch/arm/plat-iop/gpio.c + * GPIO handling for Intel IOP3xx processors. + * + * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org> + * + * 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. + */ + +#include <linux/device.h> +#include <linux/init.h> +#include <linux/types.h> +#include <linux/errno.h> +#include <linux/gpio.h> +#include <linux/export.h> +#include <asm/hardware/iop3xx.h> +#include <mach/gpio.h> + +void gpio_line_config(int line, int direction) +{ + unsigned long flags; + + local_irq_save(flags); + if (direction == GPIO_IN) { + *IOP3XX_GPOE |= 1 << line; + } else if (direction == GPIO_OUT) { + *IOP3XX_GPOE &= ~(1 << line); + } + local_irq_restore(flags); +} +EXPORT_SYMBOL(gpio_line_config); + +int gpio_line_get(int line) +{ + return !!(*IOP3XX_GPID & (1 << line)); +} +EXPORT_SYMBOL(gpio_line_get); + +void gpio_line_set(int line, int value) +{ + unsigned long flags; + + local_irq_save(flags); + if (value == GPIO_LOW) { + *IOP3XX_GPOD &= ~(1 << line); + } else if (value == GPIO_HIGH) { + *IOP3XX_GPOD |= 1 << line; + } + local_irq_restore(flags); +} +EXPORT_SYMBOL(gpio_line_set); + +static int iop3xx_gpio_direction_input(struct gpio_chip *chip, unsigned gpio) +{ + gpio_line_config(gpio, GPIO_IN); + return 0; +} + +static int iop3xx_gpio_direction_output(struct gpio_chip *chip, unsigned gpio, int level) +{ + gpio_line_set(gpio, level); + gpio_line_config(gpio, GPIO_OUT); + return 0; +} + +static int iop3xx_gpio_get_value(struct gpio_chip *chip, unsigned gpio) +{ + return gpio_line_get(gpio); +} + +static void iop3xx_gpio_set_value(struct gpio_chip *chip, unsigned gpio, int value) +{ + gpio_line_set(gpio, value); +} + +static struct gpio_chip iop3xx_chip = { + .label = "iop3xx", + .direction_input = iop3xx_gpio_direction_input, + .get = iop3xx_gpio_get_value, + .direction_output = iop3xx_gpio_direction_output, + .set = iop3xx_gpio_set_value, + .base = 0, + .ngpio = IOP3XX_N_GPIOS, +}; + +static int __init iop3xx_gpio_setup(void) +{ + return gpiochip_add(&iop3xx_chip); +} +arch_initcall(iop3xx_gpio_setup);
--
1.8.3.1