From eccb7a00613c804ec7244676090bf6ee43a23da2 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Wed, 8 Feb 2023 17:37:22 +0200 Subject: [PATCH] gpiolib: remove asm-generic/gpio.h The asm-generic/gpio.h file is now always included when using gpiolib, so just move its contents into linux/gpio.h with a few minor simplifications. Signed-off-by: Arnd Bergmann Reviewed-by: Linus Walleij Reviewed-by: Andy Shevchenko Signed-off-by: Andy Shevchenko --- MAINTAINERS | 1 - arch/m68k/include/asm/mcfgpio.h | 2 +- drivers/gpio/gpio-davinci.c | 2 - drivers/pinctrl/core.c | 1 - include/asm-generic/gpio.h | 146 ---------------------------------------- include/linux/gpio.h | 94 +++++++++++++++++++++++--- 6 files changed, 85 insertions(+), 161 deletions(-) delete mode 100644 include/asm-generic/gpio.h diff --git a/MAINTAINERS b/MAINTAINERS index 8d5bc22..ddf686c 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -8752,7 +8752,6 @@ F: Documentation/admin-guide/gpio/ F: Documentation/devicetree/bindings/gpio/ F: Documentation/driver-api/gpio/ F: drivers/gpio/ -F: include/asm-generic/gpio.h F: include/dt-bindings/gpio/ F: include/linux/gpio.h F: include/linux/gpio/ diff --git a/arch/m68k/include/asm/mcfgpio.h b/arch/m68k/include/asm/mcfgpio.h index 27f32cc..2cefe84 100644 --- a/arch/m68k/include/asm/mcfgpio.h +++ b/arch/m68k/include/asm/mcfgpio.h @@ -9,7 +9,7 @@ #define mcfgpio_h #ifdef CONFIG_GPIOLIB -#include +#include #else int __mcfgpio_get_value(unsigned gpio); diff --git a/drivers/gpio/gpio-davinci.c b/drivers/gpio/gpio-davinci.c index 26b1f74..7fc8305 100644 --- a/drivers/gpio/gpio-davinci.c +++ b/drivers/gpio/gpio-davinci.c @@ -24,8 +24,6 @@ #include #include -#include - #define MAX_REGS_BANKS 5 #define MAX_INT_PER_BANK 32 diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c index d6e6c75..401886c 100644 --- a/drivers/pinctrl/core.c +++ b/drivers/pinctrl/core.c @@ -30,7 +30,6 @@ #ifdef CONFIG_GPIOLIB #include "../gpio/gpiolib.h" -#include #endif #include "core.h" diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h deleted file mode 100644 index 1c910d1..0000000 --- a/include/asm-generic/gpio.h +++ /dev/null @@ -1,146 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_GENERIC_GPIO_H -#define _ASM_GENERIC_GPIO_H - -#include -#include - -#ifdef CONFIG_GPIOLIB - -#include -#include - -/* - * Platforms may implement their GPIO interface with library code, - * at a small performance cost for non-inlined operations and some - * extra memory (for code and for per-GPIO table entries). - */ - -/* - * At the end we want all GPIOs to be dynamically allocated from 0. - * However, some legacy drivers still perform fixed allocation. - * Until they are all fixed, leave 0-512 space for them. - */ -#define GPIO_DYNAMIC_BASE 512 - -struct device; -struct gpio; -struct seq_file; -struct module; -struct device_node; -struct gpio_desc; - -/* Always use the library code for GPIO management calls, - * or when sleeping may be involved. - */ -extern int gpio_request(unsigned gpio, const char *label); -extern void gpio_free(unsigned gpio); - -static inline int gpio_direction_input(unsigned gpio) -{ - return gpiod_direction_input(gpio_to_desc(gpio)); -} -static inline int gpio_direction_output(unsigned gpio, int value) -{ - return gpiod_direction_output_raw(gpio_to_desc(gpio), value); -} - -static inline int gpio_set_debounce(unsigned gpio, unsigned debounce) -{ - return gpiod_set_debounce(gpio_to_desc(gpio), debounce); -} - -static inline int gpio_get_value_cansleep(unsigned gpio) -{ - return gpiod_get_raw_value_cansleep(gpio_to_desc(gpio)); -} -static inline void gpio_set_value_cansleep(unsigned gpio, int value) -{ - return gpiod_set_raw_value_cansleep(gpio_to_desc(gpio), value); -} - - -/* A platform's code may want to inline the I/O calls when - * the GPIO is constant and refers to some always-present controller, - * giving direct access to chip registers and tight bitbanging loops. - */ -static inline int __gpio_get_value(unsigned gpio) -{ - return gpiod_get_raw_value(gpio_to_desc(gpio)); -} -static inline void __gpio_set_value(unsigned gpio, int value) -{ - return gpiod_set_raw_value(gpio_to_desc(gpio), value); -} - -static inline int __gpio_cansleep(unsigned gpio) -{ - return gpiod_cansleep(gpio_to_desc(gpio)); -} - -static inline int __gpio_to_irq(unsigned gpio) -{ - return gpiod_to_irq(gpio_to_desc(gpio)); -} - -extern int gpio_request_one(unsigned gpio, unsigned long flags, const char *label); -extern int gpio_request_array(const struct gpio *array, size_t num); -extern void gpio_free_array(const struct gpio *array, size_t num); - -/* - * A sysfs interface can be exported by individual drivers if they want, - * but more typically is configured entirely from userspace. - */ -static inline int gpio_export(unsigned gpio, bool direction_may_change) -{ - return gpiod_export(gpio_to_desc(gpio), direction_may_change); -} - -static inline void gpio_unexport(unsigned gpio) -{ - gpiod_unexport(gpio_to_desc(gpio)); -} - -#else /* !CONFIG_GPIOLIB */ - -#include - -/* platforms that don't directly support access to GPIOs through I2C, SPI, - * or other blocking infrastructure can use these wrappers. - */ - -static inline int gpio_cansleep(unsigned gpio) -{ - return 0; -} - -static inline int gpio_get_value_cansleep(unsigned gpio) -{ - might_sleep(); - return __gpio_get_value(gpio); -} - -static inline void gpio_set_value_cansleep(unsigned gpio, int value) -{ - might_sleep(); - __gpio_set_value(gpio, value); -} - -#endif /* !CONFIG_GPIOLIB */ - -/* - * "valid" GPIO numbers are nonnegative and may be passed to - * setup routines like gpio_request(). only some valid numbers - * can successfully be requested and used. - * - * Invalid GPIO numbers are useful for indicating no-such-GPIO in - * platform data and other tables. - */ - -static inline bool gpio_is_valid(int number) -{ - /* only non-negative numbers are valid */ - return number >= 0; -} - -#endif /* _ASM_GENERIC_GPIO_H */ diff --git a/include/linux/gpio.h b/include/linux/gpio.h index 2b75017..d5ce78e 100644 --- a/include/linux/gpio.h +++ b/include/linux/gpio.h @@ -13,6 +13,7 @@ #define __LINUX_GPIO_H #include +#include /* see Documentation/driver-api/gpio/legacy.rst */ @@ -54,26 +55,100 @@ struct gpio { }; #ifdef CONFIG_GPIOLIB -#include -static inline int gpio_get_value(unsigned int gpio) +#include + +/* + * "valid" GPIO numbers are nonnegative and may be passed to + * setup routines like gpio_request(). Only some valid numbers + * can successfully be requested and used. + * + * Invalid GPIO numbers are useful for indicating no-such-GPIO in + * platform data and other tables. + */ +static inline bool gpio_is_valid(int number) +{ + /* only non-negative numbers are valid */ + return number >= 0; +} + +/* + * Platforms may implement their GPIO interface with library code, + * at a small performance cost for non-inlined operations and some + * extra memory (for code and for per-GPIO table entries). + */ + +/* + * At the end we want all GPIOs to be dynamically allocated from 0. + * However, some legacy drivers still perform fixed allocation. + * Until they are all fixed, leave 0-512 space for them. + */ +#define GPIO_DYNAMIC_BASE 512 + +/* Always use the library code for GPIO management calls, + * or when sleeping may be involved. + */ +int gpio_request(unsigned gpio, const char *label); +void gpio_free(unsigned gpio); + +static inline int gpio_direction_input(unsigned gpio) +{ + return gpiod_direction_input(gpio_to_desc(gpio)); +} +static inline int gpio_direction_output(unsigned gpio, int value) +{ + return gpiod_direction_output_raw(gpio_to_desc(gpio), value); +} + +static inline int gpio_set_debounce(unsigned gpio, unsigned debounce) +{ + return gpiod_set_debounce(gpio_to_desc(gpio), debounce); +} + +static inline int gpio_get_value_cansleep(unsigned gpio) +{ + return gpiod_get_raw_value_cansleep(gpio_to_desc(gpio)); +} +static inline void gpio_set_value_cansleep(unsigned gpio, int value) { - return __gpio_get_value(gpio); + return gpiod_set_raw_value_cansleep(gpio_to_desc(gpio), value); } -static inline void gpio_set_value(unsigned int gpio, int value) +static inline int gpio_get_value(unsigned gpio) +{ + return gpiod_get_raw_value(gpio_to_desc(gpio)); +} +static inline void gpio_set_value(unsigned gpio, int value) { - __gpio_set_value(gpio, value); + return gpiod_set_raw_value(gpio_to_desc(gpio), value); } -static inline int gpio_cansleep(unsigned int gpio) +static inline int gpio_cansleep(unsigned gpio) { - return __gpio_cansleep(gpio); + return gpiod_cansleep(gpio_to_desc(gpio)); } -static inline int gpio_to_irq(unsigned int gpio) +static inline int gpio_to_irq(unsigned gpio) { - return __gpio_to_irq(gpio); + return gpiod_to_irq(gpio_to_desc(gpio)); +} + +int gpio_request_one(unsigned gpio, unsigned long flags, const char *label); +int gpio_request_array(const struct gpio *array, size_t num); +void gpio_free_array(const struct gpio *array, size_t num); + +/* + * A sysfs interface can be exported by individual drivers if they want, + * but more typically is configured entirely from userspace. + */ +static inline int gpio_export(unsigned gpio, bool direction_may_change) +{ + return gpiod_export(gpio_to_desc(gpio), direction_may_change); +} + +static inline void gpio_unexport(unsigned gpio) +{ + gpiod_unexport(gpio_to_desc(gpio)); } /* CONFIG_GPIOLIB: bindings for managed devices that want to request gpios */ @@ -88,7 +163,6 @@ int devm_gpio_request_one(struct device *dev, unsigned gpio, #include #include -#include struct device; struct gpio_chip; -- 2.7.4