iio: accel: adxl345: rename variable data to st

Rename the locally used variable data to st. The st refers to "state",
representing the internal state of the driver object. Further it
prepares the usage of an internal data pointer needed for the
implementation of the sensor features.

Signed-off-by: Lothar Rubusch <l.rubusch@gmail.com>
Link: https://patch.msgid.link/20241205171343.308963-3-l.rubusch@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/accel/adxl345_core.c b/drivers/iio/accel/adxl345_core.c
index cf73d7052e936a10692b8e4bb2d0feea77c45343..0b613f5652e3b7f6782512ed7f6729a32f00f743 100644 (file)
--- a/drivers/iio/accel/adxl345_core.c
+++ b/drivers/iio/accel/adxl345_core.c
@@ -17,7 +17,7 @@
 
 #include "adxl345.h"
 
-struct adxl345_data {
+struct adxl345_state {
        const struct adxl345_chip_info *info;
        struct regmap *regmap;
 };
@@ -43,7 +43,7 @@ static int adxl345_read_raw(struct iio_dev *indio_dev,
                            struct iio_chan_spec const *chan,
                            int *val, int *val2, long mask)
 {
-       struct adxl345_data *data = iio_priv(indio_dev);
+       struct adxl345_state *st = iio_priv(indio_dev);
        __le16 accel;
        long long samp_freq_nhz;
        unsigned int regval;
@@ -56,7 +56,7 @@ static int adxl345_read_raw(struct iio_dev *indio_dev,
                 * ADXL345_REG_DATA(X0/Y0/Z0) contain the least significant byte
                 * and ADXL345_REG_DATA(X0/Y0/Z0) + 1 the most significant byte
                 */
-               ret = regmap_bulk_read(data->regmap,
+               ret = regmap_bulk_read(st->regmap,
                                       ADXL345_REG_DATA_AXIS(chan->address),
                                       &accel, sizeof(accel));
                if (ret < 0)
@@ -66,10 +66,10 @@ static int adxl345_read_raw(struct iio_dev *indio_dev,
                return IIO_VAL_INT;
        case IIO_CHAN_INFO_SCALE:
                *val = 0;
-               *val2 = data->info->uscale;
+               *val2 = st->info->uscale;
                return IIO_VAL_INT_PLUS_MICRO;
        case IIO_CHAN_INFO_CALIBBIAS:
-               ret = regmap_read(data->regmap,
+               ret = regmap_read(st->regmap,
                                  ADXL345_REG_OFS_AXIS(chan->address), &regval);
                if (ret < 0)
                        return ret;
@@ -81,7 +81,7 @@ static int adxl345_read_raw(struct iio_dev *indio_dev,
 
                return IIO_VAL_INT;
        case IIO_CHAN_INFO_SAMP_FREQ:
-               ret = regmap_read(data->regmap, ADXL345_REG_BW_RATE, &regval);
+               ret = regmap_read(st->regmap, ADXL345_REG_BW_RATE, &regval);
                if (ret < 0)
                        return ret;
 
@@ -99,7 +99,7 @@ static int adxl345_write_raw(struct iio_dev *indio_dev,
                             struct iio_chan_spec const *chan,
                             int val, int val2, long mask)
 {
-       struct adxl345_data *data = iio_priv(indio_dev);
+       struct adxl345_state *st = iio_priv(indio_dev);
        s64 n;
 
        switch (mask) {
@@ -108,14 +108,14 @@ static int adxl345_write_raw(struct iio_dev *indio_dev,
                 * 8-bit resolution at +/- 2g, that is 4x accel data scale
                 * factor
                 */
-               return regmap_write(data->regmap,
+               return regmap_write(st->regmap,
                                    ADXL345_REG_OFS_AXIS(chan->address),
                                    val / 4);
        case IIO_CHAN_INFO_SAMP_FREQ:
                n = div_s64(val * NANOHZ_PER_HZ + val2,
                            ADXL345_BASE_RATE_NANO_HZ);
 
-               return regmap_update_bits(data->regmap, ADXL345_REG_BW_RATE,
+               return regmap_update_bits(st->regmap, ADXL345_REG_BW_RATE,
                                          ADXL345_BW_RATE,
                                          clamp_val(ilog2(n), 0,
                                                    ADXL345_BW_RATE));
@@ -180,7 +180,7 @@ static void adxl345_powerdown(void *regmap)
 int adxl345_core_probe(struct device *dev, struct regmap *regmap,
                       int (*setup)(struct device*, struct regmap*))
 {
-       struct adxl345_data *data;
+       struct adxl345_state *st;
        struct iio_dev *indio_dev;
        u32 regval;
        unsigned int data_format_mask = (ADXL345_DATA_FORMAT_RANGE |
@@ -189,17 +189,17 @@ int adxl345_core_probe(struct device *dev, struct regmap *regmap,
                                         ADXL345_DATA_FORMAT_SELF_TEST);
        int ret;
 
-       indio_dev = devm_iio_device_alloc(dev, sizeof(*data));
+       indio_dev = devm_iio_device_alloc(dev, sizeof(*st));
        if (!indio_dev)
                return -ENOMEM;
 
-       data = iio_priv(indio_dev);
-       data->regmap = regmap;
-       data->info = device_get_match_data(dev);
-       if (!data->info)
+       st = iio_priv(indio_dev);
+       st->regmap = regmap;
+       st->info = device_get_match_data(dev);
+       if (!st->info)
                return -ENODEV;
 
-       indio_dev->name = data->info->name;
+       indio_dev->name = st->info->name;
        indio_dev->info = &adxl345_info;
        indio_dev->modes = INDIO_DIRECT_MODE;
        indio_dev->channels = adxl345_channels;
@@ -207,12 +207,12 @@ int adxl345_core_probe(struct device *dev, struct regmap *regmap,
 
        if (setup) {
                /* Perform optional initial bus specific configuration */
-               ret = setup(dev, data->regmap);
+               ret = setup(dev, st->regmap);
                if (ret)
                        return ret;
 
                /* Enable full-resolution mode */
-               ret = regmap_update_bits(data->regmap, ADXL345_REG_DATA_FORMAT,
+               ret = regmap_update_bits(st->regmap, ADXL345_REG_DATA_FORMAT,
                                         data_format_mask,
                                         ADXL345_DATA_FORMAT_FULL_RES);
                if (ret)
@@ -221,14 +221,14 @@ int adxl345_core_probe(struct device *dev, struct regmap *regmap,
 
        } else {
                /* Enable full-resolution mode (init all data_format bits) */
-               ret = regmap_write(data->regmap, ADXL345_REG_DATA_FORMAT,
+               ret = regmap_write(st->regmap, ADXL345_REG_DATA_FORMAT,
                                   ADXL345_DATA_FORMAT_FULL_RES);
                if (ret)
                        return dev_err_probe(dev, ret,
                                             "Failed to set data range\n");
        }
 
-       ret = regmap_read(data->regmap, ADXL345_REG_DEVID, &regval);
+       ret = regmap_read(st->regmap, ADXL345_REG_DEVID, &regval);
        if (ret < 0)
                return dev_err_probe(dev, ret, "Error reading device ID\n");
 
@@ -237,11 +237,11 @@ int adxl345_core_probe(struct device *dev, struct regmap *regmap,
                                     regval, ADXL345_DEVID);
 
        /* Enable measurement mode */
-       ret = adxl345_powerup(data->regmap);
+       ret = adxl345_powerup(st->regmap);
        if (ret < 0)
                return dev_err_probe(dev, ret, "Failed to enable measurement mode\n");
 
-       ret = devm_add_action_or_reset(dev, adxl345_powerdown, data->regmap);
+       ret = devm_add_action_or_reset(dev, adxl345_powerdown, st->regmap);
        if (ret < 0)
                return ret;