ASoC: cs35l56: Make struct regmap_config const

It's now possible to declare instances of struct regmap_config as
const data.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://patch.msgid.link/20240822145535.336407-1-rf@opensource.cirrus.comSigned-off-by: Mark Brown <broonie@kernel.org>

include/sound/cs35l56.h

@@ -282,9 +282,9 @@ static inline bool cs35l56_is_otp_register(unsigned int reg)
 	return (reg >> 16) == 3;
 }
 
-extern struct regmap_config cs35l56_regmap_i2c;
-extern struct regmap_config cs35l56_regmap_spi;
-extern struct regmap_config cs35l56_regmap_sdw;
+extern const struct regmap_config cs35l56_regmap_i2c;
+extern const struct regmap_config cs35l56_regmap_spi;
+extern const struct regmap_config cs35l56_regmap_sdw;
 
 extern const struct cirrus_amp_cal_controls cs35l56_calibration_controls;
 

sound/soc/codecs/cs35l56-shared.c

@@ -916,7 +916,7 @@ const unsigned int cs35l56_tx_input_values[] = {
 };
 EXPORT_SYMBOL_NS_GPL(cs35l56_tx_input_values, SND_SOC_CS35L56_SHARED);
 
-struct regmap_config cs35l56_regmap_i2c = {
+const struct regmap_config cs35l56_regmap_i2c = {
 	.reg_bits = 32,
 	.val_bits = 32,
 	.reg_stride = 4,
@@ -932,7 +932,7 @@ struct regmap_config cs35l56_regmap_i2c = {
 };
 EXPORT_SYMBOL_NS_GPL(cs35l56_regmap_i2c, SND_SOC_CS35L56_SHARED);
 
-struct regmap_config cs35l56_regmap_spi = {
+const struct regmap_config cs35l56_regmap_spi = {
 	.reg_bits = 32,
 	.val_bits = 32,
 	.pad_bits = 16,
@@ -949,7 +949,7 @@ struct regmap_config cs35l56_regmap_spi = {
 };
 EXPORT_SYMBOL_NS_GPL(cs35l56_regmap_spi, SND_SOC_CS35L56_SHARED);
 
-struct regmap_config cs35l56_regmap_sdw = {
+const struct regmap_config cs35l56_regmap_sdw = {
 	.reg_bits = 32,
 	.val_bits = 32,
 	.reg_stride = 4,