-/**********************************************************************/
-
-/* Linux gpio framework integration.
- *
- * 4 use cases of Au1000-Au1200 GPIOS:
- *(1) GPIOLIB=y, ALCHEMY_GPIO_INDIRECT=y:
- * Board must register gpiochips.
- *(2) GPIOLIB=y, ALCHEMY_GPIO_INDIRECT=n:
- * 2 (1 for Au1000) gpio_chips are registered.
- *
- *(3) GPIOLIB=n, ALCHEMY_GPIO_INDIRECT=y:
- * the boards' gpio.h must provide the linux gpio wrapper functions,
- *
- *(4) GPIOLIB=n, ALCHEMY_GPIO_INDIRECT=n:
- * inlinable gpio functions are provided which enable access to the
- * Au1000 gpios only by using the numbers straight out of the data-
- * sheets.
-
- * Cases 1 and 3 are intended for boards which want to provide their own
- * GPIO namespace and -operations (i.e. for example you have 8 GPIOs
- * which are in part provided by spare Au1000 GPIO pins and in part by
- * an external FPGA but you still want them to be accssible in linux
- * as gpio0-7. The board can of course use the alchemy_gpioX_* functions
- * as required).
- */
-
-#ifndef CONFIG_GPIOLIB
-
-#ifdef CONFIG_ALCHEMY_GPIOINT_AU1000
-
-#ifndef CONFIG_ALCHEMY_GPIO_INDIRECT /* case (4) */
-
-static inline int gpio_direction_input(int gpio)
-{
- return alchemy_gpio_direction_input(gpio);
-}
-
-static inline int gpio_direction_output(int gpio, int v)
-{
- return alchemy_gpio_direction_output(gpio, v);
-}
-
-static inline int gpio_get_value(int gpio)
-{
- return alchemy_gpio_get_value(gpio);
-}
-
-static inline void gpio_set_value(int gpio, int v)
-{
- alchemy_gpio_set_value(gpio, v);
-}
-
-static inline int gpio_get_value_cansleep(unsigned gpio)
-{
- return gpio_get_value(gpio);
-}
-
-static inline void gpio_set_value_cansleep(unsigned gpio, int value)
-{
- gpio_set_value(gpio, value);
-}
-
-static inline int gpio_is_valid(int gpio)
-{
- return alchemy_gpio_is_valid(gpio);
-}
-
-static inline int gpio_cansleep(int gpio)
-{
- return alchemy_gpio_cansleep(gpio);
-}
-
-static inline int gpio_to_irq(int gpio)
-{
- return alchemy_gpio_to_irq(gpio);
-}
-
-static inline int irq_to_gpio(int irq)
-{
- return alchemy_irq_to_gpio(irq);
-}
-
-static inline int gpio_request(unsigned gpio, const char *label)
-{
- return 0;
-}
-
-static inline int gpio_request_one(unsigned gpio,
- unsigned long flags, const char *label)
-{
- return 0;
-}
-
-static inline int gpio_request_array(struct gpio *array, size_t num)
-{
- return 0;
-}
-
-static inline void gpio_free(unsigned gpio)
-{
-}
-
-static inline void gpio_free_array(struct gpio *array, size_t num)
-{
-}
-
-static inline int gpio_set_debounce(unsigned gpio, unsigned debounce)
-{
- return -ENOSYS;
-}
-
-static inline int gpio_export(unsigned gpio, bool direction_may_change)
-{
- return -ENOSYS;
-}
-
-static inline int gpio_export_link(struct device *dev, const char *name,
- unsigned gpio)
-{
- return -ENOSYS;
-}
-
-static inline int gpio_sysfs_set_active_low(unsigned gpio, int value)
-{
- return -ENOSYS;
-}
-
-static inline void gpio_unexport(unsigned gpio)
-{
-}
-
-#endif /* !CONFIG_ALCHEMY_GPIO_INDIRECT */
-
-#endif /* CONFIG_ALCHEMY_GPIOINT_AU1000 */
-
-#endif /* !CONFIG_GPIOLIB */
-
projects / linux-drm-fsl-dcu.git / commitdiff