diff options
Diffstat (limited to 'drivers/tty/serial/serial_mctrl_gpio.c')
| -rw-r--r-- | drivers/tty/serial/serial_mctrl_gpio.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/tty/serial/serial_mctrl_gpio.c b/drivers/tty/serial/serial_mctrl_gpio.c index e8dd509..a868595 100644 --- a/drivers/tty/serial/serial_mctrl_gpio.c +++ b/drivers/tty/serial/serial_mctrl_gpio.c @@ -86,6 +86,24 @@ unsigned int mctrl_gpio_get(struct mctrl_gpios *gpios, unsigned int *mctrl) } EXPORT_SYMBOL_GPL(mctrl_gpio_get); +unsigned int +mctrl_gpio_get_outputs(struct mctrl_gpios *gpios, unsigned int *mctrl) +{ + enum mctrl_gpio_idx i; + + for (i = 0; i < UART_GPIO_MAX; i++) { + if (gpios->gpio[i] && mctrl_gpios_desc[i].dir_out) { + if (gpiod_get_value(gpios->gpio[i])) + *mctrl |= mctrl_gpios_desc[i].mctrl; + else + *mctrl &= ~mctrl_gpios_desc[i].mctrl; + } + } + + return *mctrl; +} +EXPORT_SYMBOL_GPL(mctrl_gpio_get_outputs); + struct mctrl_gpios *mctrl_gpio_init_noauto(struct device *dev, unsigned int idx) { struct mctrl_gpios *gpios; |