| 1 | |
| 2 | #ifndef __LINUX_JZ4740_ADC |
| 3 | #define __LINUX_JZ4740_ADC |
| 4 | |
| 5 | #include <linux/device.h> |
| 6 | |
| 7 | enum jz_adc_battery_scale { |
| 8 | JZ_ADC_BATTERY_SCALE_2V5, /* Mesures voltages up to 2.5V */ |
| 9 | JZ_ADC_BATTERY_SCALE_7V5, /* Mesures voltages up to 7.5V */ |
| 10 | }; |
| 11 | |
| 12 | /* |
| 13 | * jz4740_adc_read_battery_voltage - Read battery voltage from the ADC PBAT pin |
| 14 | * @dev: Pointer to a jz4740-adc device |
| 15 | * @scale: Whether to use 2.5V or 7.5V scale |
| 16 | * |
| 17 | * Returns: Battery voltage in mircovolts |
| 18 | * |
| 19 | * Context: Process |
| 20 | */ |
| 21 | long jz4740_adc_read_battery_voltage(struct device *dev, |
| 22 | enum jz_adc_battery_scale scale); |
| 23 | |
| 24 | |
| 25 | #endif |
| 26 | |
