[PATCH 6.6 162/331] iio: imu: bno055: serdev requires REGMAP

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6.6-stable review patch.  If anyone has any objections, please let me know.


From: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>

commit 35ec2d03b282a939949090bd8c39eb37a5856721 upstream.

There are a ton of build errors when REGMAP is not set, so select
REGMAP to fix all of them.

Examples (not all of them):

../drivers/iio/imu/bno055/bno055_ser_core.c:495:15: error: variable 'bno055_ser_regmap_bus' has initializer but incomplete type
  495 | static struct regmap_bus bno055_ser_regmap_bus = {
../drivers/iio/imu/bno055/bno055_ser_core.c:496:10: error: 'struct regmap_bus' has no member named 'write'
  496 |         .write = bno055_ser_write_reg,
../drivers/iio/imu/bno055/bno055_ser_core.c:497:10: error: 'struct regmap_bus' has no member named 'read'
  497 |         .read = bno055_ser_read_reg,
../drivers/iio/imu/bno055/bno055_ser_core.c: In function 'bno055_ser_probe':
../drivers/iio/imu/bno055/bno055_ser_core.c:532:18: error: implicit declaration of function 'devm_regmap_init'; did you mean 'vmem_map_init'? [-Werror=implicit-function-declaration]
  532 |         regmap = devm_regmap_init(&serdev->dev, &bno055_ser_regmap_bus,
../drivers/iio/imu/bno055/bno055_ser_core.c:532:16: warning: assignment to 'struct regmap *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
  532 |         regmap = devm_regmap_init(&serdev->dev, &bno055_ser_regmap_bus,
../drivers/iio/imu/bno055/bno055_ser_core.c: At top level:
../drivers/iio/imu/bno055/bno055_ser_core.c:495:26: error: storage size of 'bno055_ser_regmap_bus' isn't known
  495 | static struct regmap_bus bno055_ser_regmap_bus = {

Fixes: 2eef5a9cc643 ("iio: imu: add BNO055 serdev driver")
Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Cc: Andrea Merello <andrea.merello@xxxxxx>
Cc: Jonathan Cameron <jic23@xxxxxxxxxx>
Cc: Lars-Peter Clausen <lars@xxxxxxxxxx>
Cc: linux-iio@xxxxxxxxxxxxxxx
Cc: <Stable@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20240110185611.19723-1-rdunlap@xxxxxxxxxxxxx
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
 drivers/iio/imu/bno055/Kconfig |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/iio/imu/bno055/Kconfig
+++ b/drivers/iio/imu/bno055/Kconfig
@@ -8,6 +8,7 @@ config BOSCH_BNO055
 	tristate "Bosch BNO055 attached via UART"
 	depends on SERIAL_DEV_BUS
+	select REGMAP
 	select BOSCH_BNO055
 	  Enable this to support Bosch BNO055 IMUs attached via UART.

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