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iio: adc: mt6359: Move reference voltage to platform data

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In preparation to add support for new PMICs, add a `vref_mv`
member to struct mtk_pmic_auxadc_info and use it in place of
the AUXADC_VOLT_FULL definition.

As a consequence, the definition was also removed.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20250703141146.171431-5-angelogioacchino.delregno@collabora.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
AngeloGioacchino Del Regno
2025-07-03 16:11:44 +02:00
committed by Jonathan Cameron
parent f8bb423f49
commit dbcbed76d0
1 changed files with 6 additions and 2 deletions
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8
drivers/iio/adc/mt6359-auxadc.c
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@@ -28,7 +28,6 @@
#define AUXADC_AVG_TIME_US 10
#define AUXADC_POLL_DELAY_US 100
#define AUXADC_TIMEOUT_US 32000
#define AUXADC_VOLT_FULL 1800
#define IMP_STOP_DELAY_US 150
#define IMP_POLL_DELAY_US 1000
@@ -123,6 +122,7 @@ struct mtk_pmic_auxadc_chan {
* @desc: PMIC AUXADC channel data
* @regs: List of PMIC specific registers
* @sec_unlock_key: Security unlock key for HK_TOP writes
* @vref_mV: AUXADC Reference Voltage (VREF) in millivolts
* @imp_adc_num: ADC channel for battery impedance readings
* @read_imp: Callback to read impedance channels
*/
@@ -133,6 +133,7 @@ struct mtk_pmic_auxadc_info {
const struct mtk_pmic_auxadc_chan *desc;
const u16 *regs;
u16 sec_unlock_key;
u32 vref_mV;
u8 imp_adc_num;
int (*read_imp)(struct mt6359_auxadc *adc_dev,
const struct iio_chan_spec *chan, int *vbat, int *ibat);
@@ -416,6 +417,7 @@ static const struct mtk_pmic_auxadc_info mt6357_chip_info = {
.regs = mt6357_auxadc_regs,
.imp_adc_num = MT6357_IMP_ADC_NUM,
.read_imp = mt6358_read_imp,
.vref_mV = 1800,
};
static const struct mtk_pmic_auxadc_info mt6358_chip_info = {
@@ -426,6 +428,7 @@ static const struct mtk_pmic_auxadc_info mt6358_chip_info = {
.regs = mt6358_auxadc_regs,
.imp_adc_num = MT6358_IMP_ADC_NUM,
.read_imp = mt6358_read_imp,
.vref_mV = 1800,
};
static const struct mtk_pmic_auxadc_info mt6359_chip_info = {
@@ -436,6 +439,7 @@ static const struct mtk_pmic_auxadc_info mt6359_chip_info = {
.regs = mt6359_auxadc_regs,
.sec_unlock_key = 0x6359,
.read_imp = mt6359_read_imp,
.vref_mV = 1800,
};
static void mt6359_auxadc_reset(struct mt6359_auxadc *adc_dev)
@@ -505,7 +509,7 @@ static int mt6359_auxadc_read_raw(struct iio_dev *indio_dev,
int ret;
if (mask == IIO_CHAN_INFO_SCALE) {
*val = desc->r_ratio.numerator * AUXADC_VOLT_FULL;
*val = desc->r_ratio.numerator * cinfo->vref_mV;
if (desc->r_ratio.denominator > 1) {
*val2 = desc->r_ratio.denominator;