Signed-off-by: Paul Kocialkowski contact@paulk.fr --- drivers/power/axp209.c | 13 +++++++++++++ include/axp209.h | 3 +++ 2 files changed, 16 insertions(+)
diff --git a/drivers/power/axp209.c b/drivers/power/axp209.c index 4565398..11fe9d7 100644 --- a/drivers/power/axp209.c +++ b/drivers/power/axp209.c @@ -31,6 +31,7 @@ enum axp209_reg { };
#define AXP209_POWER_STATUS_ON_BY_DC (1 << 0) +#define AXP209_POWER_STATUS_VBUS_USABLE (1 << 4)
#define AXP209_IRQ5_PEK_UP (1 << 6) #define AXP209_IRQ5_PEK_DOWN (1 << 5) @@ -249,3 +250,15 @@ int axp_gpio_set_value(unsigned int pin, unsigned int val) { return axp_gpio_direction_output(pin, val); } + +int axp_get_vbus(void) +{ + u8 val; + int rc; + + rc = axp209_read(AXP209_POWER_STATUS, &val); + if (rc) + return rc; + + return (val & AXP209_POWER_STATUS_VBUS_USABLE) ? 1 : 0; +} diff --git a/include/axp209.h b/include/axp209.h index 0436249..a007958 100644 --- a/include/axp209.h +++ b/include/axp209.h @@ -5,6 +5,7 @@ */
#define AXP_GPIO +#define AXP_VBUS_DETECT
extern int axp209_set_dcdc2(int mvolt); extern int axp209_set_dcdc3(int mvolt); @@ -19,3 +20,5 @@ extern int axp_gpio_direction_input(unsigned int pin); extern int axp_gpio_direction_output(unsigned int pin, unsigned int val); extern int axp_gpio_get_value(unsigned int pin); extern int axp_gpio_set_value(unsigned int pin, unsigned int val); + +extern int axp_get_vbus(void);