diff options
Diffstat (limited to 'drivers/pinctrl/pinctrl-sunxi.c')
| -rw-r--r-- | drivers/pinctrl/pinctrl-sunxi.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinctrl-sunxi.c b/drivers/pinctrl/pinctrl-sunxi.c index e4d32c67dcb..80b11e3415b 100644 --- a/drivers/pinctrl/pinctrl-sunxi.c +++ b/drivers/pinctrl/pinctrl-sunxi.c @@ -1261,6 +1261,24 @@ static void sunxi_pinctrl_gpio_set(struct gpio_chip *chip, writel((value & DATA_PINS_MASK) << index, pctl->membase + reg); } +static int sunxi_pinctrl_gpio_of_xlate(struct gpio_chip *gc, + const struct of_phandle_args *gpiospec, + u32 *flags) +{ + int pin, base; + + base = PINS_PER_BANK * gpiospec->args[0]; + pin = base + gpiospec->args[1]; + + if (pin > (gc->base + gc->ngpio)) + return -EINVAL; + + if (flags) + *flags = gpiospec->args[2]; + + return pin; +} + static struct gpio_chip sunxi_pinctrl_gpio_chip = { .owner = THIS_MODULE, .request = sunxi_pinctrl_gpio_request, @@ -1269,6 +1287,8 @@ static struct gpio_chip sunxi_pinctrl_gpio_chip = { .direction_output = sunxi_pinctrl_gpio_direction_output, .get = sunxi_pinctrl_gpio_get, .set = sunxi_pinctrl_gpio_set, + .of_xlate = sunxi_pinctrl_gpio_of_xlate, + .of_gpio_n_cells = 3, .can_sleep = 0, }; |