staging: iio: adc: ad7192: Convert platform data to DT properties

This patch will remove platform data members and replace them with device
tree properties. These properties will be subject to further modifications
and probably replaced with other functionalities at some point in time.

Signed-off-by: Mircea Caprioru <mircea.caprioru@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c
index 5c54ce3..c56eaef 100644 (file)
--- a/drivers/staging/iio/adc/ad7192.c
+++ b/drivers/staging/iio/adc/ad7192.c
@@ -250,10 +250,11 @@ static int ad7192_of_clock_select(struct ad7192_state *st)
        return clock_sel;
 }
 
-static int ad7192_setup(struct ad7192_state *st,
-                       const struct ad7192_platform_data *pdata)
+static int ad7192_setup(struct ad7192_state *st, struct device_node *np)
 {
        struct iio_dev *indio_dev = spi_get_drvdata(st->sd.spi);
+       bool rej60_en, sinc3_en, refin2_en, chop_en;
+       bool buf_en, bipolar, burnout_curr_en;
        unsigned long long scale_uv;
        int i, ret, id;
 
@@ -280,18 +281,22 @@ static int ad7192_setup(struct ad7192_state *st,
 
        st->conf = AD7192_CONF_GAIN(0);
 
-       if (pdata->rej60_en)
+       rej60_en = of_property_read_bool(np, "adi,rejection-60-Hz-enable");
+       if (rej60_en)
                st->mode |= AD7192_MODE_REJ60;
 
-       if (pdata->sinc3_en)
+       sinc3_en = of_property_read_bool(np, "adi,sinc3-filter-enable");
+       if (sinc3_en)
                st->mode |= AD7192_MODE_SINC3;
 
-       if (pdata->refin2_en && st->devid != ID_AD7195)
+       refin2_en = of_property_read_bool(np, "adi,refin2-pins-enable");
+       if (refin2_en && st->devid != ID_AD7195)
                st->conf |= AD7192_CONF_REFSEL;
 
-       if (pdata->chop_en) {
+       chop_en = of_property_read_bool(np, "adi,chop-enable");
+       if (chop_en) {
                st->conf |= AD7192_CONF_CHOP;
-               if (pdata->sinc3_en)
+               if (sinc3_en)
                        st->f_order = 3; /* SINC 3rd order */
                else
                        st->f_order = 4; /* SINC 4th order */
@@ -299,15 +304,19 @@ static int ad7192_setup(struct ad7192_state *st,
                st->f_order = 1;
        }
 
-       if (pdata->buf_en)
+       buf_en = of_property_read_bool(np, "adi,buffer-enable");
+       if (buf_en)
                st->conf |= AD7192_CONF_BUF;
 
-       if (pdata->unipolar_en)
+       bipolar = of_property_read_bool(np, "bipolar");
+       if (!bipolar)
                st->conf |= AD7192_CONF_UNIPOLAR;
 
-       if (pdata->burnout_curr_en && pdata->buf_en && !pdata->chop_en) {
+       burnout_curr_en = of_property_read_bool(np,
+                                               "adi,burnout-currents-enable");
+       if (burnout_curr_en && buf_en && !chop_en) {
                st->conf |= AD7192_CONF_BURN;
-       } else if (pdata->burnout_curr_en) {
+       } else if (burnout_curr_en) {
                dev_warn(&st->sd.spi->dev,
                         "Can't enable burnout currents: see CHOP or buffer\n");
        }
@@ -735,7 +744,7 @@ static int ad7192_probe(struct spi_device *spi)
                }
        }
 
-       ret = ad7192_setup(st, pdata);
+       ret = ad7192_setup(st, spi->dev.of_node);
        if (ret)
                goto error_disable_clk;
 

diff --git a/drivers/staging/iio/adc/ad7192.h b/drivers/staging/iio/adc/ad7192.h
index 3be3ee2..aa3322c 100644 (file)
--- a/drivers/staging/iio/adc/ad7192.h
+++ b/drivers/staging/iio/adc/ad7192.h
@@ -33,13 +33,6 @@
 
 struct ad7192_platform_data {
        u16             vref_mv;
-       bool            refin2_en;
-       bool            rej60_en;
-       bool            sinc3_en;
-       bool            chop_en;
-       bool            buf_en;
-       bool            unipolar_en;
-       bool            burnout_curr_en;
 };
 
 #endif /* IIO_ADC_AD7192_H_ */