iio: imu: bno055: make bno055_sysfs_attr const

Add const qualifier to struct bno055_sysfs_attr and its array fields.
All of this is read-only data so it can be made const.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250709-iio-const-data-19-v2-2-fb3fc9191251@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/imu/bno055/bno055.c b/drivers/iio/imu/bno055/bno055.c
index 0eb5e1334e5564284c7f4bf560424b5ec734903d..a8e71679ec21dc2cfb0cbbce978fc7cad9929d96 100644 (file)
--- a/drivers/iio/imu/bno055/bno055.c
+++ b/drivers/iio/imu/bno055/bno055.c
@@ -114,35 +114,35 @@
 #define BNO055_UID_LEN 16
 
 struct bno055_sysfs_attr {
-       int *vals;
+       const int *vals;
        int len;
-       int *fusion_vals;
-       int *hw_xlate;
+       const int *fusion_vals;
+       const int *hw_xlate;
        int hw_xlate_len;
        int type;
 };
 
-static int bno055_acc_lpf_vals[] = {
+static const int bno055_acc_lpf_vals[] = {
        7, 810000, 15, 630000, 31, 250000, 62, 500000,
        125, 0, 250, 0, 500, 0, 1000, 0,
 };
 
-static struct bno055_sysfs_attr bno055_acc_lpf = {
+static const struct bno055_sysfs_attr bno055_acc_lpf = {
        .vals = bno055_acc_lpf_vals,
        .len = ARRAY_SIZE(bno055_acc_lpf_vals),
-       .fusion_vals = (int[]){62, 500000},
+       .fusion_vals = (const int[]){62, 500000},
        .type = IIO_VAL_INT_PLUS_MICRO,
 };
 
-static int bno055_acc_range_vals[] = {
+static const int bno055_acc_range_vals[] = {
   /* G:    2,    4,    8,    16 */
        1962, 3924, 7848, 15696
 };
 
-static struct bno055_sysfs_attr bno055_acc_range = {
+static const struct bno055_sysfs_attr bno055_acc_range = {
        .vals = bno055_acc_range_vals,
        .len = ARRAY_SIZE(bno055_acc_range_vals),
-       .fusion_vals = (int[]){3924}, /* 4G */
+       .fusion_vals = (const int[]){3924}, /* 4G */
        .type = IIO_VAL_INT,
 };
 
@@ -166,37 +166,37 @@ static struct bno055_sysfs_attr bno055_acc_range = {
  *     = hwval * (dps_range/(2^15 * k))
  * where k is rad-to-deg factor
  */
-static int bno055_gyr_scale_vals[] = {
+static const int bno055_gyr_scale_vals[] = {
        125, 1877467, 250, 1877467, 500, 1877467,
        1000, 1877467, 2000, 1877467,
 };
 
-static int bno055_gyr_scale_hw_xlate[] = {0, 1, 2, 3, 4};
-static struct bno055_sysfs_attr bno055_gyr_scale = {
+static const int bno055_gyr_scale_hw_xlate[] = {0, 1, 2, 3, 4};
+static const struct bno055_sysfs_attr bno055_gyr_scale = {
        .vals = bno055_gyr_scale_vals,
        .len = ARRAY_SIZE(bno055_gyr_scale_vals),
-       .fusion_vals = (int[]){1, 900},
+       .fusion_vals = (const int[]){1, 900},
        .hw_xlate = bno055_gyr_scale_hw_xlate,
        .hw_xlate_len = ARRAY_SIZE(bno055_gyr_scale_hw_xlate),
        .type = IIO_VAL_FRACTIONAL,
 };
 
-static int bno055_gyr_lpf_vals[] = {12, 23, 32, 47, 64, 116, 230, 523};
-static int bno055_gyr_lpf_hw_xlate[] = {5, 4, 7, 3, 6, 2, 1, 0};
-static struct bno055_sysfs_attr bno055_gyr_lpf = {
+static const int bno055_gyr_lpf_vals[] = {12, 23, 32, 47, 64, 116, 230, 523};
+static const int bno055_gyr_lpf_hw_xlate[] = {5, 4, 7, 3, 6, 2, 1, 0};
+static const struct bno055_sysfs_attr bno055_gyr_lpf = {
        .vals = bno055_gyr_lpf_vals,
        .len = ARRAY_SIZE(bno055_gyr_lpf_vals),
-       .fusion_vals = (int[]){32},
+       .fusion_vals = (const int[]){32},
        .hw_xlate = bno055_gyr_lpf_hw_xlate,
        .hw_xlate_len = ARRAY_SIZE(bno055_gyr_lpf_hw_xlate),
        .type = IIO_VAL_INT,
 };
 
-static int bno055_mag_odr_vals[] = {2, 6, 8, 10, 15, 20, 25, 30};
-static struct bno055_sysfs_attr bno055_mag_odr = {
+static const int bno055_mag_odr_vals[] = {2, 6, 8, 10, 15, 20, 25, 30};
+static const struct bno055_sysfs_attr bno055_mag_odr = {
        .vals = bno055_mag_odr_vals,
        .len =  ARRAY_SIZE(bno055_mag_odr_vals),
-       .fusion_vals = (int[]){20},
+       .fusion_vals = (const int[]){20},
        .type = IIO_VAL_INT,
 };
 
@@ -553,7 +553,8 @@ static const struct iio_chan_spec bno055_channels[] = {
 };
 
 static int bno055_get_regmask(struct bno055_priv *priv, int *val, int *val2,
-                             int reg, int mask, struct bno055_sysfs_attr *attr)
+                             int reg, int mask,
+                             const struct bno055_sysfs_attr *attr)
 {
        const int shift = __ffs(mask);
        int hwval, idx;
@@ -582,7 +583,8 @@ static int bno055_get_regmask(struct bno055_priv *priv, int *val, int *val2,
 }
 
 static int bno055_set_regmask(struct bno055_priv *priv, int val, int val2,
-                             int reg, int mask, struct bno055_sysfs_attr *attr)
+                             int reg, int mask,
+                             const struct bno055_sysfs_attr *attr)
 {
        const int shift = __ffs(mask);
        int best_delta;
@@ -763,7 +765,8 @@ static int bno055_read_simple_chan(struct iio_dev *indio_dev,
        }
 }
 
-static int bno055_sysfs_attr_avail(struct bno055_priv *priv, struct bno055_sysfs_attr *attr,
+static int bno055_sysfs_attr_avail(struct bno055_priv *priv,
+                                  const struct bno055_sysfs_attr *attr,
                                   const int **vals, int *length)
 {
        if (priv->operation_mode != BNO055_OPR_MODE_AMG) {