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https://github.com/linux-sunxi/u-boot-sunxi.git
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Merge git://git.denx.de/u-boot-dm
Fix a trivial conflict over adding <dm.h> Conflicts: arch/arm/cpu/armv7/omap3/board.c Signed-off-by: Tom Rini <trini@ti.com>
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@ -29,6 +29,9 @@
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* Request a GPIO. This should be called before any of the other functions
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* are used on this GPIO.
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*
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* Note: With driver model, the label is allocated so there is no need for
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* the caller to preserve it.
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*
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* @param gp GPIO number
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* @param label User label for this GPIO
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* @return 0 if ok, -1 on error
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@ -80,7 +83,7 @@ int gpio_get_value(unsigned gpio);
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int gpio_set_value(unsigned gpio, int value);
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/* State of a GPIO, as reported by get_function() */
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enum {
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enum gpio_func_t {
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GPIOF_INPUT = 0,
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GPIOF_OUTPUT,
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GPIOF_UNUSED, /* Not claimed */
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@ -92,6 +95,66 @@ enum {
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struct udevice;
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/**
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* gpio_get_status() - get the current GPIO status as a string
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*
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* Obtain the current GPIO status as a string which can be presented to the
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* user. A typical string is:
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*
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* "b4: in: 1 [x] sdmmc_cd"
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*
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* which means this is GPIO bank b, offset 4, currently set to input, current
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* value 1, [x] means that it is requested and the owner is 'sdmmc_cd'
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*
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* @dev: Device to check
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* @offset: Offset of device GPIO to check
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* @buf: Place to put string
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* @buffsize: Size of string including \0
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*/
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int gpio_get_status(struct udevice *dev, int offset, char *buf, int buffsize);
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/**
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* gpio_get_function() - get the current function for a GPIO pin
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*
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* Note this returns GPIOF_UNUSED if the GPIO is not requested.
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*
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* @dev: Device to check
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* @offset: Offset of device GPIO to check
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* @namep: If non-NULL, this is set to the nane given when the GPIO
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* was requested, or -1 if it has not been requested
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* @return -ENODATA if the driver returned an unknown function,
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* -ENODEV if the device is not active, -EINVAL if the offset is invalid.
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* GPIOF_UNUSED if the GPIO has not been requested. Otherwise returns the
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* function from enum gpio_func_t.
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*/
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int gpio_get_function(struct udevice *dev, int offset, const char **namep);
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/**
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* gpio_get_raw_function() - get the current raw function for a GPIO pin
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*
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* Note this does not return GPIOF_UNUSED - it will always return the GPIO
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* driver's view of a pin function, even if it is not correctly set up.
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*
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* @dev: Device to check
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* @offset: Offset of device GPIO to check
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* @namep: If non-NULL, this is set to the nane given when the GPIO
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* was requested, or -1 if it has not been requested
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* @return -ENODATA if the driver returned an unknown function,
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* -ENODEV if the device is not active, -EINVAL if the offset is invalid.
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* Otherwise returns the function from enum gpio_func_t.
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*/
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int gpio_get_raw_function(struct udevice *dev, int offset, const char **namep);
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/**
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* gpio_requestf() - request a GPIO using a format string for the owner
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*
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* This is a helper function for gpio_request(). It allows you to provide
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* a printf()-format string for the GPIO owner. It calls gpio_request() with
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* the string that is created
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*/
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int gpio_requestf(unsigned gpio, const char *fmt, ...)
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__attribute__ ((format (__printf__, 2, 3)));
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/**
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* struct struct dm_gpio_ops - Driver model GPIO operations
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*
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@ -135,8 +198,6 @@ struct dm_gpio_ops {
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* @return current function - GPIOF_...
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*/
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int (*get_function)(struct udevice *dev, unsigned offset);
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int (*get_state)(struct udevice *dev, unsigned offset, char *state,
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int maxlen);
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};
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/**
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@ -157,11 +218,14 @@ struct dm_gpio_ops {
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* @gpio_base: Base GPIO number for this device. For the first active device
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* this will be 0; the numbering for others will follow sequentially so that
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* @gpio_base for device 1 will equal the number of GPIOs in device 0.
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* @name: Array of pointers to the name for each GPIO in this bank. The
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* value of the pointer will be NULL if the GPIO has not been claimed.
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*/
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struct gpio_dev_priv {
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const char *bank_name;
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unsigned gpio_count;
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unsigned gpio_base;
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char **name;
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};
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/* Access the GPIO operations for a device */
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