diff options
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-dwapb.c | 1 | ||||
| -rw-r--r-- | drivers/gpio/gpio-mb86s7x.c | 1 | ||||
| -rw-r--r-- | drivers/gpio/gpio-xgene-sb.c | 1 | ||||
| -rw-r--r-- | drivers/gpio/gpiolib-acpi.c | 1 | ||||
| -rw-r--r-- | drivers/gpio/gpiolib-acpi.h | 104 | ||||
| -rw-r--r-- | drivers/gpio/gpiolib.c | 1 | ||||
| -rw-r--r-- | drivers/gpio/gpiolib.h | 93 |
7 files changed, 109 insertions, 93 deletions
diff --git a/drivers/gpio/gpio-dwapb.c b/drivers/gpio/gpio-dwapb.c index 3108be5e208c..92e127e74813 100644 --- a/drivers/gpio/gpio-dwapb.c +++ b/drivers/gpio/gpio-dwapb.c @@ -27,6 +27,7 @@ #include <linux/slab.h> #include "gpiolib.h" +#include "gpiolib-acpi.h" #define GPIO_SWPORTA_DR 0x00 #define GPIO_SWPORTA_DDR 0x04 diff --git a/drivers/gpio/gpio-mb86s7x.c b/drivers/gpio/gpio-mb86s7x.c index 8f466993cd24..501e89548f53 100644 --- a/drivers/gpio/gpio-mb86s7x.c +++ b/drivers/gpio/gpio-mb86s7x.c @@ -21,6 +21,7 @@ #include <linux/slab.h> #include "gpiolib.h" +#include "gpiolib-acpi.h" /* * Only first 8bits of a register correspond to each pin, diff --git a/drivers/gpio/gpio-xgene-sb.c b/drivers/gpio/gpio-xgene-sb.c index 38c01912c7b2..25d86441666e 100644 --- a/drivers/gpio/gpio-xgene-sb.c +++ b/drivers/gpio/gpio-xgene-sb.c @@ -16,6 +16,7 @@ #include <linux/acpi.h> #include "gpiolib.h" +#include "gpiolib-acpi.h" /* Common property names */ #define XGENE_NIRQ_PROPERTY "apm,nr-irqs" diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index 39f2f9035c11..d54fc6e7c8a9 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -18,6 +18,7 @@ #include <linux/pinctrl/pinctrl.h> #include "gpiolib.h" +#include "gpiolib-acpi.h" /** * struct acpi_gpio_event - ACPI GPIO event handler data diff --git a/drivers/gpio/gpiolib-acpi.h b/drivers/gpio/gpiolib-acpi.h new file mode 100644 index 000000000000..d7241b432b8b --- /dev/null +++ b/drivers/gpio/gpiolib-acpi.h @@ -0,0 +1,104 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * ACPI helpers for GPIO API + * + * Copyright (C) 2012,2019 Intel Corporation + */ + +#ifndef GPIOLIB_ACPI_H +#define GPIOLIB_ACPI_H + +struct acpi_device; + +/** + * struct acpi_gpio_info - ACPI GPIO specific information + * @adev: reference to ACPI device which consumes GPIO resource + * @flags: GPIO initialization flags + * @gpioint: if %true this GPIO is of type GpioInt otherwise type is GpioIo + * @pin_config: pin bias as provided by ACPI + * @polarity: interrupt polarity as provided by ACPI + * @triggering: triggering type as provided by ACPI + * @quirks: Linux specific quirks as provided by struct acpi_gpio_mapping + */ +struct acpi_gpio_info { + struct acpi_device *adev; + enum gpiod_flags flags; + bool gpioint; + int pin_config; + int polarity; + int triggering; + unsigned int quirks; +}; + +#ifdef CONFIG_ACPI +void acpi_gpiochip_add(struct gpio_chip *chip); +void acpi_gpiochip_remove(struct gpio_chip *chip); + +void acpi_gpiochip_request_interrupts(struct gpio_chip *chip); +void acpi_gpiochip_free_interrupts(struct gpio_chip *chip); + +int acpi_gpio_update_gpiod_flags(enum gpiod_flags *flags, + struct acpi_gpio_info *info); +int acpi_gpio_update_gpiod_lookup_flags(unsigned long *lookupflags, + struct acpi_gpio_info *info); + +struct gpio_desc *acpi_find_gpio(struct device *dev, + const char *con_id, + unsigned int idx, + enum gpiod_flags *dflags, + unsigned long *lookupflags); +struct gpio_desc *acpi_node_get_gpiod(struct fwnode_handle *fwnode, + const char *propname, int index, + struct acpi_gpio_info *info); + +int acpi_gpio_count(struct device *dev, const char *con_id); + +bool acpi_can_fallback_to_crs(struct acpi_device *adev, const char *con_id); +#else +static inline void acpi_gpiochip_add(struct gpio_chip *chip) { } +static inline void acpi_gpiochip_remove(struct gpio_chip *chip) { } + +static inline void +acpi_gpiochip_request_interrupts(struct gpio_chip *chip) { } + +static inline void +acpi_gpiochip_free_interrupts(struct gpio_chip *chip) { } + +static inline int +acpi_gpio_update_gpiod_flags(enum gpiod_flags *flags, struct acpi_gpio_info *info) +{ + return 0; +} +static inline int +acpi_gpio_update_gpiod_lookup_flags(unsigned long *lookupflags, + struct acpi_gpio_info *info) +{ + return 0; +} + +static inline struct gpio_desc * +acpi_find_gpio(struct device *dev, const char *con_id, + unsigned int idx, enum gpiod_flags *dflags, + unsigned long *lookupflags) +{ + return ERR_PTR(-ENOENT); +} +static inline struct gpio_desc * +acpi_node_get_gpiod(struct fwnode_handle *fwnode, const char *propname, + int index, struct acpi_gpio_info *info) +{ + return ERR_PTR(-ENXIO); +} +static inline int acpi_gpio_count(struct device *dev, const char *con_id) +{ + return -ENODEV; +} + +static inline bool acpi_can_fallback_to_crs(struct acpi_device *adev, + const char *con_id) +{ + return false; +} +#endif + +#endif /* GPIOLIB_ACPI_H */ diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 03883f519d53..f83870a18ae7 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -30,6 +30,7 @@ #include "gpiolib.h" #include "gpiolib-of.h" +#include "gpiolib-acpi.h" #define CREATE_TRACE_POINTS #include <trace/events/gpio.h> diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h index 75d2e909d8c6..b8b10a409c7b 100644 --- a/drivers/gpio/gpiolib.h +++ b/drivers/gpio/gpiolib.h @@ -16,8 +16,6 @@ #include <linux/module.h> #include <linux/cdev.h> -struct acpi_device; - /** * struct gpio_device - internal state container for GPIO devices * @id: numerical ID number for the GPIO chip @@ -68,100 +66,9 @@ struct gpio_device { #endif }; -/** - * struct acpi_gpio_info - ACPI GPIO specific information - * @adev: reference to ACPI device which consumes GPIO resource - * @flags: GPIO initialization flags - * @gpioint: if %true this GPIO is of type GpioInt otherwise type is GpioIo - * @pin_config: pin bias as provided by ACPI - * @polarity: interrupt polarity as provided by ACPI - * @triggering: triggering type as provided by ACPI - * @quirks: Linux specific quirks as provided by struct acpi_gpio_mapping - */ -struct acpi_gpio_info { - struct acpi_device *adev; - enum gpiod_flags flags; - bool gpioint; - int pin_config; - int polarity; - int triggering; - unsigned int quirks; -}; - /* gpio suffixes used for ACPI and device tree lookup */ static __maybe_unused const char * const gpio_suffixes[] = { "gpios", "gpio" }; -#ifdef CONFIG_ACPI -void acpi_gpiochip_add(struct gpio_chip *chip); -void acpi_gpiochip_remove(struct gpio_chip *chip); - -void acpi_gpiochip_request_interrupts(struct gpio_chip *chip); -void acpi_gpiochip_free_interrupts(struct gpio_chip *chip); - -int acpi_gpio_update_gpiod_flags(enum gpiod_flags *flags, - struct acpi_gpio_info *info); -int acpi_gpio_update_gpiod_lookup_flags(unsigned long *lookupflags, - struct acpi_gpio_info *info); - -struct gpio_desc *acpi_find_gpio(struct device *dev, - const char *con_id, - unsigned int idx, - enum gpiod_flags *dflags, - unsigned long *lookupflags); -struct gpio_desc *acpi_node_get_gpiod(struct fwnode_handle *fwnode, - const char *propname, int index, - struct acpi_gpio_info *info); - -int acpi_gpio_count(struct device *dev, const char *con_id); - -bool acpi_can_fallback_to_crs(struct acpi_device *adev, const char *con_id); -#else -static inline void acpi_gpiochip_add(struct gpio_chip *chip) { } -static inline void acpi_gpiochip_remove(struct gpio_chip *chip) { } - -static inline void -acpi_gpiochip_request_interrupts(struct gpio_chip *chip) { } - -static inline void -acpi_gpiochip_free_interrupts(struct gpio_chip *chip) { } - -static inline int -acpi_gpio_update_gpiod_flags(enum gpiod_flags *flags, struct acpi_gpio_info *info) -{ - return 0; -} -static inline int -acpi_gpio_update_gpiod_lookup_flags(unsigned long *lookupflags, - struct acpi_gpio_info *info) -{ - return 0; -} - -static inline struct gpio_desc * -acpi_find_gpio(struct device *dev, const char *con_id, - unsigned int idx, enum gpiod_flags *dflags, - unsigned long *lookupflags) -{ - return ERR_PTR(-ENOENT); -} -static inline struct gpio_desc * -acpi_node_get_gpiod(struct fwnode_handle *fwnode, const char *propname, - int index, struct acpi_gpio_info *info) -{ - return ERR_PTR(-ENXIO); -} -static inline int acpi_gpio_count(struct device *dev, const char *con_id) -{ - return -ENODEV; -} - -static inline bool acpi_can_fallback_to_crs(struct acpi_device *adev, - const char *con_id) -{ - return false; -} -#endif - struct gpio_array { struct gpio_desc **desc; unsigned int size; |