diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pinctrl/sunxi/pinctrl-sunxi.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/pinctrl/sunxi/pinctrl-sunxi.c b/drivers/pinctrl/sunxi/pinctrl-sunxi.c index fe6c46cdd5b..789cfbacbbc 100644 --- a/drivers/pinctrl/sunxi/pinctrl-sunxi.c +++ b/drivers/pinctrl/sunxi/pinctrl-sunxi.c @@ -92,6 +92,32 @@ static int sunxi_pinctrl_pinmux_set(struct udevice *dev, uint pin_selector, return 0; } +static int sunxi_pinctrl_get_pin_muxing(struct udevice *dev, uint pin_selector, + char *buf, int size) +{ + struct sunxi_pinctrl_plat *plat = dev_get_plat(dev); + int bank = pin_selector / SUNXI_GPIOS_PER_BANK; + int pin = pin_selector % SUNXI_GPIOS_PER_BANK; + int mux = sunxi_gpio_get_cfgbank(plat->base + bank, pin); + + switch (mux) { + case SUNXI_GPIO_INPUT: + strlcpy(buf, "gpio input", size); + break; + case SUNXI_GPIO_OUTPUT: + strlcpy(buf, "gpio output", size); + break; + case SUNXI_GPIO_DISABLE: + strlcpy(buf, "disabled", size); + break; + default: + snprintf(buf, size, "function %d", mux); + break; + } + + return 0; +} + static const struct pinctrl_ops sunxi_pinctrl_ops = { .get_pins_count = sunxi_pinctrl_get_pins_count, .get_pin_name = sunxi_pinctrl_get_pin_name, @@ -99,6 +125,7 @@ static const struct pinctrl_ops sunxi_pinctrl_ops = { .get_function_name = sunxi_pinctrl_get_function_name, .pinmux_set = sunxi_pinctrl_pinmux_set, .set_state = pinctrl_generic_set_state, + .get_pin_muxing = sunxi_pinctrl_get_pin_muxing, }; static int sunxi_pinctrl_bind(struct udevice *dev) |