summaryrefslogtreecommitdiff
path: root/drivers/iio/adc/axp20x_adc.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/iio/adc/axp20x_adc.c')
-rw-r--r--drivers/iio/adc/axp20x_adc.c160
1 files changed, 152 insertions, 8 deletions
diff --git a/drivers/iio/adc/axp20x_adc.c b/drivers/iio/adc/axp20x_adc.c
index a30a97245e91..7cdb8bc8cde6 100644
--- a/drivers/iio/adc/axp20x_adc.c
+++ b/drivers/iio/adc/axp20x_adc.c
@@ -35,8 +35,13 @@
#define AXP20X_GPIO10_IN_RANGE_GPIO1_VAL(x) (((x) & BIT(0)) << 1)
#define AXP20X_ADC_RATE_MASK GENMASK(7, 6)
+#define AXP813_V_I_ADC_RATE_MASK GENMASK(5, 4)
+#define AXP813_ADC_RATE_MASK (AXP20X_ADC_RATE_MASK | AXP813_V_I_ADC_RATE_MASK)
#define AXP20X_ADC_RATE_HZ(x) ((ilog2((x) / 25) << 6) & AXP20X_ADC_RATE_MASK)
#define AXP22X_ADC_RATE_HZ(x) ((ilog2((x) / 100) << 6) & AXP20X_ADC_RATE_MASK)
+#define AXP813_TS_GPIO0_ADC_RATE_HZ(x) AXP20X_ADC_RATE_HZ(x)
+#define AXP813_V_I_ADC_RATE_HZ(x) ((ilog2((x) / 100) << 4) & AXP813_V_I_ADC_RATE_MASK)
+#define AXP813_ADC_RATE_HZ(x) (AXP20X_ADC_RATE_HZ(x) | AXP813_V_I_ADC_RATE_HZ(x))
#define AXP20X_ADC_CHANNEL(_channel, _name, _type, _reg) \
{ \
@@ -95,6 +100,12 @@ enum axp22x_adc_channel_i {
AXP22X_BATT_DISCHRG_I,
};
+enum axp813_adc_channel_v {
+ AXP813_TS_IN = 0,
+ AXP813_GPIO0_V,
+ AXP813_BATT_V,
+};
+
static struct iio_map axp20x_maps[] = {
{
.consumer_dev_name = "axp20x-usb-power-supply",
@@ -197,6 +208,25 @@ static const struct iio_chan_spec axp22x_adc_channels[] = {
AXP20X_BATT_DISCHRG_I_H),
};
+static const struct iio_chan_spec axp813_adc_channels[] = {
+ {
+ .type = IIO_TEMP,
+ .address = AXP22X_PMIC_TEMP_H,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
+ BIT(IIO_CHAN_INFO_SCALE) |
+ BIT(IIO_CHAN_INFO_OFFSET),
+ .datasheet_name = "pmic_temp",
+ },
+ AXP20X_ADC_CHANNEL(AXP813_GPIO0_V, "gpio0_v", IIO_VOLTAGE,
+ AXP288_GP_ADC_H),
+ AXP20X_ADC_CHANNEL(AXP813_BATT_V, "batt_v", IIO_VOLTAGE,
+ AXP20X_BATT_V_H),
+ AXP20X_ADC_CHANNEL(AXP22X_BATT_CHRG_I, "batt_chrg_i", IIO_CURRENT,
+ AXP20X_BATT_CHRG_I_H),
+ AXP20X_ADC_CHANNEL(AXP22X_BATT_DISCHRG_I, "batt_dischrg_i", IIO_CURRENT,
+ AXP20X_BATT_DISCHRG_I_H),
+};
+
static int axp20x_adc_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan, int *val)
{
@@ -243,6 +273,18 @@ static int axp22x_adc_raw(struct iio_dev *indio_dev,
return IIO_VAL_INT;
}
+static int axp813_adc_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan, int *val)
+{
+ struct axp20x_adc_iio *info = iio_priv(indio_dev);
+
+ *val = axp20x_read_variable_width(info->regmap, chan->address, 12);
+ if (*val < 0)
+ return *val;
+
+ return IIO_VAL_INT;
+}
+
static int axp20x_adc_scale_voltage(int channel, int *val, int *val2)
{
switch (channel) {
@@ -273,6 +315,24 @@ static int axp20x_adc_scale_voltage(int channel, int *val, int *val2)
}
}
+static int axp813_adc_scale_voltage(int channel, int *val, int *val2)
+{
+ switch (channel) {
+ case AXP813_GPIO0_V:
+ *val = 0;
+ *val2 = 800000;
+ return IIO_VAL_INT_PLUS_MICRO;
+
+ case AXP813_BATT_V:
+ *val = 1;
+ *val2 = 100000;
+ return IIO_VAL_INT_PLUS_MICRO;
+
+ default:
+ return -EINVAL;
+ }
+}
+
static int axp20x_adc_scale_current(int channel, int *val, int *val2)
{
switch (channel) {
@@ -342,6 +402,26 @@ static int axp22x_adc_scale(struct iio_chan_spec const *chan, int *val,
}
}
+static int axp813_adc_scale(struct iio_chan_spec const *chan, int *val,
+ int *val2)
+{
+ switch (chan->type) {
+ case IIO_VOLTAGE:
+ return axp813_adc_scale_voltage(chan->channel, val, val2);
+
+ case IIO_CURRENT:
+ *val = 1;
+ return IIO_VAL_INT;
+
+ case IIO_TEMP:
+ *val = 100;
+ return IIO_VAL_INT;
+
+ default:
+ return -EINVAL;
+ }
+}
+
static int axp20x_adc_offset_voltage(struct iio_dev *indio_dev, int channel,
int *val)
{
@@ -425,6 +505,26 @@ static int axp22x_read_raw(struct iio_dev *indio_dev,
}
}
+static int axp813_read_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan, int *val,
+ int *val2, long mask)
+{
+ switch (mask) {
+ case IIO_CHAN_INFO_OFFSET:
+ *val = -2667;
+ return IIO_VAL_INT;
+
+ case IIO_CHAN_INFO_SCALE:
+ return axp813_adc_scale(chan, val, val2);
+
+ case IIO_CHAN_INFO_RAW:
+ return axp813_adc_raw(indio_dev, chan, val);
+
+ default:
+ return -EINVAL;
+ }
+}
+
static int axp20x_write_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan, int val, int val2,
long mask)
@@ -470,14 +570,29 @@ static const struct iio_info axp22x_adc_iio_info = {
.read_raw = axp22x_read_raw,
};
-static int axp20x_adc_rate(int rate)
+static const struct iio_info axp813_adc_iio_info = {
+ .read_raw = axp813_read_raw,
+};
+
+static int axp20x_adc_rate(struct axp20x_adc_iio *info, int rate)
+{
+ return regmap_update_bits(info->regmap, AXP20X_ADC_RATE,
+ AXP20X_ADC_RATE_MASK,
+ AXP20X_ADC_RATE_HZ(rate));
+}
+
+static int axp22x_adc_rate(struct axp20x_adc_iio *info, int rate)
{
- return AXP20X_ADC_RATE_HZ(rate);
+ return regmap_update_bits(info->regmap, AXP20X_ADC_RATE,
+ AXP20X_ADC_RATE_MASK,
+ AXP22X_ADC_RATE_HZ(rate));
}
-static int axp22x_adc_rate(int rate)
+static int axp813_adc_rate(struct axp20x_adc_iio *info, int rate)
{
- return AXP22X_ADC_RATE_HZ(rate);
+ return regmap_update_bits(info->regmap, AXP813_ADC_RATE,
+ AXP813_ADC_RATE_MASK,
+ AXP813_ADC_RATE_HZ(rate));
}
struct axp_data {
@@ -485,7 +600,8 @@ struct axp_data {
int num_channels;
struct iio_chan_spec const *channels;
unsigned long adc_en1_mask;
- int (*adc_rate)(int rate);
+ int (*adc_rate)(struct axp20x_adc_iio *info,
+ int rate);
bool adc_en2;
struct iio_map *maps;
};
@@ -510,9 +626,28 @@ static const struct axp_data axp22x_data = {
.maps = axp22x_maps,
};
+static const struct axp_data axp813_data = {
+ .iio_info = &axp813_adc_iio_info,
+ .num_channels = ARRAY_SIZE(axp813_adc_channels),
+ .channels = axp813_adc_channels,
+ .adc_en1_mask = AXP22X_ADC_EN1_MASK,
+ .adc_rate = axp813_adc_rate,
+ .adc_en2 = false,
+ .maps = axp22x_maps,
+};
+
+static const struct of_device_id axp20x_adc_of_match[] = {
+ { .compatible = "x-powers,axp209-adc", .data = (void *)&axp20x_data, },
+ { .compatible = "x-powers,axp221-adc", .data = (void *)&axp22x_data, },
+ { .compatible = "x-powers,axp813-adc", .data = (void *)&axp813_data, },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, axp20x_adc_of_match);
+
static const struct platform_device_id axp20x_adc_id_match[] = {
{ .name = "axp20x-adc", .driver_data = (kernel_ulong_t)&axp20x_data, },
{ .name = "axp22x-adc", .driver_data = (kernel_ulong_t)&axp22x_data, },
+ { .name = "axp813-adc", .driver_data = (kernel_ulong_t)&axp813_data, },
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(platform, axp20x_adc_id_match);
@@ -538,7 +673,16 @@ static int axp20x_probe(struct platform_device *pdev)
indio_dev->dev.of_node = pdev->dev.of_node;
indio_dev->modes = INDIO_DIRECT_MODE;
- info->data = (struct axp_data *)platform_get_device_id(pdev)->driver_data;
+ if (!pdev->dev.of_node) {
+ const struct platform_device_id *id;
+
+ id = platform_get_device_id(pdev);
+ info->data = (struct axp_data *)id->driver_data;
+ } else {
+ struct device *dev = &pdev->dev;
+
+ info->data = (struct axp_data *)of_device_get_match_data(dev);
+ }
indio_dev->name = platform_get_device_id(pdev)->name;
indio_dev->info = info->data->iio_info;
@@ -554,8 +698,7 @@ static int axp20x_probe(struct platform_device *pdev)
AXP20X_ADC_EN2_MASK, AXP20X_ADC_EN2_MASK);
/* Configure ADCs rate */
- regmap_update_bits(info->regmap, AXP20X_ADC_RATE, AXP20X_ADC_RATE_MASK,
- info->data->adc_rate(100));
+ info->data->adc_rate(info, 100);
ret = iio_map_array_register(indio_dev, info->data->maps);
if (ret < 0) {
@@ -602,6 +745,7 @@ static int axp20x_remove(struct platform_device *pdev)
static struct platform_driver axp20x_adc_driver = {
.driver = {
.name = "axp20x-adc",
+ .of_match_table = of_match_ptr(axp20x_adc_of_match),
},
.id_table = axp20x_adc_id_match,
.probe = axp20x_probe,
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-24 11:15:43 +0000