diff options
Diffstat (limited to 'drivers/mfd/ab5500-gpadc.c')
| -rw-r--r-- | drivers/mfd/ab5500-gpadc.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/mfd/ab5500-gpadc.c b/drivers/mfd/ab5500-gpadc.c index 4718e26bee8..fe05ffbadfd 100644 --- a/drivers/mfd/ab5500-gpadc.c +++ b/drivers/mfd/ab5500-gpadc.c @@ -99,6 +99,7 @@ #define MIN_INDEX 0x02 #define MAX_INDEX 0x03 #define CTRL_INDEX 0x01 +#define KELVIN_SCALE_VOL45 0x00 /* GPADC constants from AB5500 spec */ #define GPADC0_MIN 0 @@ -129,6 +130,8 @@ #define USBID_MAX 1800 #define KELVIN_MIN 0 #define KELVIN_MAX 4500 +#define VIBRA_MIN 0 +#define VIBRA_MAX 4500 /* This is used for calibration */ #define ADC_RESOLUTION 1023 @@ -253,7 +256,9 @@ struct adc_data adc_tab[] = { ADC_DATA(ACC_DETECT3, 0x19, ACCDET3_MIN, ACCDET3_MAX, 0), ADC_DATA(MAIN_BAT_V_TRIG_MIN, 0x0C, VBAT_MIN, VBAT_MAX, 0), ADC_DATA(MAIN_BAT_V_TXON_TRIG_MIN, 0x0C, VBAT_MIN, VBAT_MAX, 0), + ADC_DATA(VIBRA_KELVIN, 0x16, VIBRA_MIN, VIBRA_MAX, 0), }; + /** * ab5500_gpadc_get() - returns a reference to the primary AB5500 GPADC * (i.e. the first GPADC in the instance list) @@ -279,6 +284,7 @@ static int ab5500_gpadc_ad_to_voltage(struct ab5500_gpadc *gpadc, int res; switch (in) { + case VIBRA_KELVIN: case GPADC0_V: case PCB_TEMP: case BTEMP_BALL: @@ -404,6 +410,15 @@ int ab5500_gpadc_convert(struct ab5500_gpadc *gpadc, u8 input) goto out; } break; + case VIBRA_KELVIN: + ret = abx500_set_register_interruptible(gpadc->dev, + AB5500_BANK_ADC, AB5500_GPADC_KELVIN_CTRL, + KELVIN_SCALE_VOL45); + if (ret < 0) { + dev_err(gpadc->dev, "gpadc: fail to set kelv scale\n"); + goto out; + } + break; case USB_CHARGER_C: case VBUS_V: case BK_BAT_V: |