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iio: pressure: bmp280: Constify struct regmap_bus

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`bmp280_regmap_bus` and `bmp380_regmap_bus` are conditionally assigned
to `bmp_regmap_bus`, which is only used to pass the struct as a
read-only member.

Add the const modifier to the structs and the pointer to move the data
to a read-only section.

Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Tested-By: Vasileios Amoiridis <vassilisamir@gmail.com>
Link: https://patch.msgid.link/20240703-iio-cont-regmap_bus-v1-10-34754f355b65@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Javier Carrasco 2024-07-03 23:04:53 +02:00 committed by Jonathan Cameron
parent 9abedf82c7
commit 244315b317
1 changed files with 3 additions and 3 deletions
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6
drivers/iio/pressure/bmp280-spi.c
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@ -64,14 +64,14 @@ static int bmp380_regmap_spi_read(void *context, const void *reg,
return 0;
}
static struct regmap_bus bmp280_regmap_bus = {
static const struct regmap_bus bmp280_regmap_bus = {
.write = bmp280_regmap_spi_write,
.read = bmp280_regmap_spi_read,
.reg_format_endian_default = REGMAP_ENDIAN_BIG,
.val_format_endian_default = REGMAP_ENDIAN_BIG,
};
static struct regmap_bus bmp380_regmap_bus = {
static const struct regmap_bus bmp380_regmap_bus = {
.write = bmp280_regmap_spi_write,
.read = bmp380_regmap_spi_read,
.read_flag_mask = BIT(7),
@ -83,7 +83,7 @@ static int bmp280_spi_probe(struct spi_device *spi)
{
const struct spi_device_id *id = spi_get_device_id(spi);
const struct bmp280_chip_info *chip_info;
struct regmap_bus *bmp_regmap_bus;
struct regmap_bus const *bmp_regmap_bus;
struct regmap *regmap;
int ret;