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pinctrl: add pin list based GPIO ranges

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Traditionally, GPIO ranges are based on consecutive ranges of both GPIO
and pin numbers. This patch allows for GPIO ranges with arbitrary lists
of pin numbers.

Signed-off-by: Christian Ruppert <christian.ruppert@abilis.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Christian Ruppert
2013-06-13 14:55:31 +02:00
committed by Linus Walleij
parent 5ace03fb6a
commit c8587eeef8
2 changed files with 52 additions and 11 deletions
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4
include/linux/pinctrl/pinctrl.h
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@@ -49,7 +49,8 @@ struct pinctrl_pin_desc {
* @name: a name for the chip in this range
* @id: an ID number for the chip in this range
* @base: base offset of the GPIO range
* @pin_base: base pin number of the GPIO range
* @pin_base: base pin number of the GPIO range if pins != NULL
* @pins: enumeration of pins in GPIO range or NULL
* @npins: number of pins in the GPIO range, including the base number
* @gc: an optional pointer to a gpio_chip
*/
@@ -59,6 +60,7 @@ struct pinctrl_gpio_range {
unsigned int id;
unsigned int base;
unsigned int pin_base;
unsigned const *pins;
unsigned int npins;
struct gpio_chip *gc;
};