diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pinctrl/pinctrl-st.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinctrl-st.c b/drivers/pinctrl/pinctrl-st.c index 9e5ec00084bb..5362e45e8cd5 100644 --- a/drivers/pinctrl/pinctrl-st.c +++ b/drivers/pinctrl/pinctrl-st.c @@ -460,6 +460,20 @@ static void st_pctl_set_function(struct st_pio_control *pc, regmap_field_write(alt, val); } +static unsigned int st_pctl_get_pin_function(struct st_pio_control *pc, int pin) +{ + struct regmap_field *alt = pc->alt; + unsigned int val; + int offset = pin * 4; + + if (!alt) + return 0; + + regmap_field_read(alt, &val); + + return (val >> offset) & 0xf; +} + static unsigned long st_pinconf_delay_to_bit(unsigned int delay, const struct st_pctl_data *data, unsigned long config) { |