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Subject[PATCH V6 7/7] iio: adc: Add a common read function for PMIC5 and PMIC7
Date
Add a common function used for read_raw callback for both PMIC5
and PMIC7 ADCs.

Signed-off-by: Jishnu Prakash <jprakash@codeaurora.org>
---
drivers/iio/adc/qcom-spmi-adc5.c | 53 +++++++++++++++++++---------------------
1 file changed, 25 insertions(+), 28 deletions(-)

diff --git a/drivers/iio/adc/qcom-spmi-adc5.c b/drivers/iio/adc/qcom-spmi-adc5.c
index 0f9af66..fe49741 100644
--- a/drivers/iio/adc/qcom-spmi-adc5.c
+++ b/drivers/iio/adc/qcom-spmi-adc5.c
@@ -449,6 +449,13 @@ static int adc7_do_conversion(struct adc5_chip *adc,
return ret;
}

+struct adc_do_conversion {
+ int (*adc_do_conversion)(struct adc5_chip *adc,
+ struct adc5_channel_prop *prop,
+ struct iio_chan_spec const *chan,
+ u16 *data_volt, u16 *data_cur);
+};
+
static irqreturn_t adc5_isr(int irq, void *dev_id)
{
struct adc5_chip *adc = dev_id;
@@ -487,9 +494,9 @@ static int adc7_of_xlate(struct iio_dev *indio_dev,
return -EINVAL;
}

-static int adc5_read_raw(struct iio_dev *indio_dev,
+static int adc_read_raw_common(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan, int *val, int *val2,
- long mask)
+ long mask, struct adc_do_conversion do_conv)
{
struct adc5_chip *adc = iio_priv(indio_dev);
struct adc5_channel_prop *prop;
@@ -500,8 +507,8 @@ static int adc5_read_raw(struct iio_dev *indio_dev,

switch (mask) {
case IIO_CHAN_INFO_PROCESSED:
- ret = adc5_do_conversion(adc, prop, chan,
- &adc_code_volt, &adc_code_cur);
+ ret = do_conv.adc_do_conversion(adc, prop, chan,
+ &adc_code_volt, &adc_code_cur);
if (ret)
return ret;

@@ -518,36 +525,26 @@ static int adc5_read_raw(struct iio_dev *indio_dev,
}
}

-static int adc7_read_raw(struct iio_dev *indio_dev,
+static int adc5_read_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan, int *val, int *val2,
long mask)
{
- struct adc5_chip *adc = iio_priv(indio_dev);
- struct adc5_channel_prop *prop;
- u16 adc_code_volt, adc_code_cur;
- int ret;
-
- prop = &adc->chan_props[chan->address];
-
- switch (mask) {
- case IIO_CHAN_INFO_PROCESSED:
- ret = adc7_do_conversion(adc, prop, chan,
- &adc_code_volt, &adc_code_cur);
- if (ret)
- return ret;
+ struct adc_do_conversion do_conv;

- ret = qcom_adc5_hw_scale(prop->scale_fn_type,
- &adc5_prescale_ratios[prop->prescale],
- adc->data,
- adc_code_volt, val);
+ do_conv.adc_do_conversion = adc5_do_conversion;
+ return adc_read_raw_common(indio_dev, chan, val, val2,
+ mask, do_conv);
+}

- if (ret)
- return ret;
+static int adc7_read_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan, int *val, int *val2,
+ long mask)
+{
+ struct adc_do_conversion do_conv;

- return IIO_VAL_INT;
- default:
- return -EINVAL;
- }
+ do_conv.adc_do_conversion = adc7_do_conversion;
+ return adc_read_raw_common(indio_dev, chan, val, val2,
+ mask, do_conv);
}

static const struct iio_info adc5_info = {
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
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