extern int dwc_otg_check_dpdm(void);
static int is_charge_ok(struct rk30_adc_battery_data *bat);
static void rk30_adc_battery_voltage_samples(struct rk30_adc_battery_data *bat);
extern int dwc_otg_check_dpdm(void);
static int is_charge_ok(struct rk30_adc_battery_data *bat);
static void rk30_adc_battery_voltage_samples(struct rk30_adc_battery_data *bat);