diff options
| author | Samuel Holland <[email protected]> | 2021-08-17 00:52:00 -0500 |
|---|---|---|
| committer | Andre Przywara <[email protected]> | 2022-04-04 23:24:01 +0100 |
| commit | d4b388244abfb7580a00967147fc5e45baf2f41f (patch) | |
| tree | ac71731e9eb3eb40b1aedc46df05e335404b76f5 | |
| parent | 29babfd92b25883ce45f294b8eeacc04113389e7 (diff) | |
sunxi: pinctrl: Implement get_pin_muxing function
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 <[email protected]>
Reviewed-by: Andre Przywara <[email protected]>
Signed-off-by: Andre Przywara <[email protected]>
| -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) |