The pinmux command uses this function to display pinmux status.
Since the driver cannot map pin numbers to a list of supported functions, only functions which are common across all pins can be reported by name.
Signed-off-by: Samuel Holland samuel@sholland.org ---
(no changes since v1)
drivers/pinctrl/sunxi/pinctrl-sunxi.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+)
diff --git a/drivers/pinctrl/sunxi/pinctrl-sunxi.c b/drivers/pinctrl/sunxi/pinctrl-sunxi.c index 6ea8245c8e..4e453cec54 100644 --- a/drivers/pinctrl/sunxi/pinctrl-sunxi.c +++ b/drivers/pinctrl/sunxi/pinctrl-sunxi.c @@ -82,6 +82,32 @@ 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, @@ -89,6 +115,7 @@ 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)