/*
* Generic GPIO API for U-Boot
*
+ * --
+ * NB: This is deprecated. Please use the driver model functions instead:
+ *
+ * - gpio_request_by_name()
+ * - dm_gpio_get_value() etc.
+ *
+ * For now we need a dm_ prefix on some functions to avoid name collision.
+ * --
+ *
* GPIOs are numbered from 0 to GPIO_COUNT-1 which value is defined
* by the SOC/architecture.
*
*/
/**
+ * @deprecated Please use driver model instead
* Request a GPIO. This should be called before any of the other functions
* are used on this GPIO.
*
int gpio_request(unsigned gpio, const char *label);
/**
+ * @deprecated Please use driver model instead
* Stop using the GPIO. This function should not alter pin configuration.
*
* @param gpio GPIO number
int gpio_free(unsigned gpio);
/**
+ * @deprecated Please use driver model instead
* Make a GPIO an input.
*
* @param gpio GPIO number
int gpio_direction_input(unsigned gpio);
/**
+ * @deprecated Please use driver model instead
* Make a GPIO an output, and set its value.
*
* @param gpio GPIO number
int gpio_direction_output(unsigned gpio, int value);
/**
+ * @deprecated Please use driver model instead
* Get a GPIO's value. This will work whether the GPIO is an input
* or an output.
*
int gpio_get_value(unsigned gpio);
/**
+ * @deprecated Please use driver model instead
* Set an output GPIO's value. The GPIO must already be an output or
* this function may have no effect.
*
unsigned long flags;
#define GPIOD_REQUESTED (1 << 0) /* Requested/claimed */
#define GPIOD_IS_OUT (1 << 1) /* GPIO is an output */
-#define GPIOD_IS_IN (1 << 2) /* GPIO is an output */
+#define GPIOD_IS_IN (1 << 2) /* GPIO is an input */
#define GPIOD_ACTIVE_LOW (1 << 3) /* value has active low */
#define GPIOD_IS_OUT_ACTIVE (1 << 4) /* set output active */
* which means this is GPIO bank b, offset 4, currently set to input, current
* value 1, [x] means that it is requested and the owner is 'sdmmc_cd'
*
+ * TODO(sjg@chromium.org): This should use struct gpio_desc
+ *
* @dev: Device to check
* @offset: Offset of device GPIO to check
* @buf: Place to put string
*
* Note this returns GPIOF_UNUSED if the GPIO is not requested.
*
+ * TODO(sjg@chromium.org): This should use struct gpio_desc
+ *
* @dev: Device to check
* @offset: Offset of device GPIO to check
* @namep: If non-NULL, this is set to the nane given when the GPIO
* Note this does not return GPIOF_UNUSED - it will always return the GPIO
* driver's view of a pin function, even if it is not correctly set up.
*
+ * TODO(sjg@chromium.org): This should use struct gpio_desc
+ *
* @dev: Device to check
* @offset: Offset of device GPIO to check
* @namep: If non-NULL, this is set to the nane given when the GPIO
unsigned int *offsetp, unsigned int *gpiop);
/**
- * get_gpios() - Turn the values of a list of GPIOs into an integer
+ * gpio_get_values_as_int() - Turn the values of a list of GPIOs into an int
*
* This puts the value of the first GPIO into bit 0, the second into bit 1,
* etc. then returns the resulting integer.
*
* @gpio_list: List of GPIOs to collect
- * @return resulting integer value
+ * @return resulting integer value, or -ve on error
+ */
+int gpio_get_values_as_int(const int *gpio_list);
+
+/**
+ * gpio_claim_vector() - claim a number of GPIOs for input
+ *
+ * @gpio_num_array: array of gpios to claim, terminated by -1
+ * @fmt: format string for GPIO names, e.g. "board_id%d"
+ * @return 0 if OK, -ve on error
*/
-unsigned gpio_get_values_as_int(const int *gpio_list);
+int gpio_claim_vector(const int *gpio_num_array, const char *fmt);
/**
* gpio_request_by_name() - Locate and request a GPIO by name