ASoC: cs35l41: Fix link problem

Can't link I2C and SPI to the same binary, better
to move CS35L41 to 3 modules approach.
And instead of exposing cs35l41_reg, volatile_reg,
readable_reg and precious_reg arrays, move
cs35l41_regmap_i2c/spi to new module and expose it.
Signed-off-by: Lucas Tanure <tanureal@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20211125143501.7720-1-tanureal@opensource.cirrus.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/Kconfig

@@ -612,14 +612,19 @@ config SND_SOC_CS35L36
 	tristate "Cirrus Logic CS35L36 CODEC"
 	depends on I2C
 
+config SND_SOC_CS35L41
+	tristate
+
 config SND_SOC_CS35L41_SPI
 	tristate "Cirrus Logic CS35L41 CODEC (SPI)"
 	depends on SPI_MASTER
+	select SND_SOC_CS35L41
 	select REGMAP_SPI
 
 config SND_SOC_CS35L41_I2C
 	tristate "Cirrus Logic CS35L41 CODEC (I2C)"
 	depends on I2C
+	select SND_SOC_CS35L41
 	select REGMAP_I2C
 
 config SND_SOC_CS42L42

sound/soc/codecs/Makefile

@@ -54,8 +54,9 @@ snd-soc-cs35l33-objs := cs35l33.o
 snd-soc-cs35l34-objs := cs35l34.o
 snd-soc-cs35l35-objs := cs35l35.o
 snd-soc-cs35l36-objs := cs35l36.o
-snd-soc-cs35l41-spi-objs := cs35l41-spi.o cs35l41.o cs35l41-tables.o
-snd-soc-cs35l41-i2c-objs := cs35l41-i2c.o cs35l41.o cs35l41-tables.o
+snd-soc-cs35l41-objs := cs35l41.o cs35l41-tables.o
+snd-soc-cs35l41-spi-objs := cs35l41-spi.o
+snd-soc-cs35l41-i2c-objs := cs35l41-i2c.o
 snd-soc-cs42l42-objs := cs42l42.o
 snd-soc-cs42l51-objs := cs42l51.o
 snd-soc-cs42l51-i2c-objs := cs42l51-i2c.o
@@ -391,6 +392,7 @@ obj-$(CONFIG_SND_SOC_CS35L33)	+= snd-soc-cs35l33.o
 obj-$(CONFIG_SND_SOC_CS35L34)	+= snd-soc-cs35l34.o
 obj-$(CONFIG_SND_SOC_CS35L35)	+= snd-soc-cs35l35.o
 obj-$(CONFIG_SND_SOC_CS35L36)	+= snd-soc-cs35l36.o
+obj-$(CONFIG_SND_SOC_CS35L41)	+= snd-soc-cs35l41.o
 obj-$(CONFIG_SND_SOC_CS35L41_SPI)	+= snd-soc-cs35l41-spi.o
 obj-$(CONFIG_SND_SOC_CS35L41_I2C)	+= snd-soc-cs35l41-i2c.o
 obj-$(CONFIG_SND_SOC_CS42L42)	+= snd-soc-cs42l42.o

sound/soc/codecs/cs35l41-i2c.c

@@ -20,21 +20,6 @@
 #include <sound/cs35l41.h>
 #include "cs35l41.h"
 
-static struct regmap_config cs35l41_regmap_i2c = {
-	.reg_bits = 32,
-	.val_bits = 32,
-	.reg_stride = CS35L41_REGSTRIDE,
-	.reg_format_endian = REGMAP_ENDIAN_BIG,
-	.val_format_endian = REGMAP_ENDIAN_BIG,
-	.max_register = CS35L41_LASTREG,
-	.reg_defaults = cs35l41_reg,
-	.num_reg_defaults = ARRAY_SIZE(cs35l41_reg),
-	.volatile_reg = cs35l41_volatile_reg,
-	.readable_reg = cs35l41_readable_reg,
-	.precious_reg = cs35l41_precious_reg,
-	.cache_type = REGCACHE_RBTREE,
-};
-
 static const struct i2c_device_id cs35l41_id_i2c[] = {
 	{ "cs35l40", 0 },
 	{ "cs35l41", 0 },

sound/soc/codecs/cs35l41-spi.c

@@ -18,22 +18,6 @@
 #include <sound/cs35l41.h>
 #include "cs35l41.h"
 
-static struct regmap_config cs35l41_regmap_spi = {
-	.reg_bits = 32,
-	.val_bits = 32,
-	.pad_bits = 16,
-	.reg_stride = CS35L41_REGSTRIDE,
-	.reg_format_endian = REGMAP_ENDIAN_BIG,
-	.val_format_endian = REGMAP_ENDIAN_BIG,
-	.max_register = CS35L41_LASTREG,
-	.reg_defaults = cs35l41_reg,
-	.num_reg_defaults = ARRAY_SIZE(cs35l41_reg),
-	.volatile_reg = cs35l41_volatile_reg,
-	.readable_reg = cs35l41_readable_reg,
-	.precious_reg = cs35l41_precious_reg,
-	.cache_type = REGCACHE_RBTREE,
-};
-
 static const struct spi_device_id cs35l41_id_spi[] = {
 	{ "cs35l40", 0 },
 	{ "cs35l41", 0 },

sound/soc/codecs/cs35l41-tables.c

@@ -8,7 +8,7 @@
 
 #include "cs35l41.h"
 
-const struct reg_default cs35l41_reg[CS35L41_MAX_CACHE_REG] = {
+static const struct reg_default cs35l41_reg[] = {
 	{ CS35L41_PWR_CTRL1,			0x00000000 },
 	{ CS35L41_PWR_CTRL3,			0x01000010 },
 	{ CS35L41_GPIO_PAD_CONTROL,		0x00000000 },
@@ -47,7 +47,7 @@ const struct reg_default cs35l41_reg[CS35L41_MAX_CACHE_REG] = {
 	{ CS35L41_MIXER_NGATE_CH2_CFG,		0x00000303 },
 };
 
-bool cs35l41_readable_reg(struct device *dev, unsigned int reg)
+static bool cs35l41_readable_reg(struct device *dev, unsigned int reg)
 {
 	switch (reg) {
 	case CS35L41_DEVID:
@@ -331,7 +331,7 @@ bool cs35l41_readable_reg(struct device *dev, unsigned int reg)
 	}
 }
 
-bool cs35l41_precious_reg(struct device *dev, unsigned int reg)
+static bool cs35l41_precious_reg(struct device *dev, unsigned int reg)
 {
 	switch (reg) {
 	case CS35L41_OTP_MEM0 ... CS35L41_OTP_MEM31:
@@ -344,7 +344,7 @@ bool cs35l41_precious_reg(struct device *dev, unsigned int reg)
 	}
 }
 
-bool cs35l41_volatile_reg(struct device *dev, unsigned int reg)
+static bool cs35l41_volatile_reg(struct device *dev, unsigned int reg)
 {
 	switch (reg) {
 	case CS35L41_DEVID:
@@ -688,3 +688,36 @@ const struct cs35l41_otp_map_element_t cs35l41_otp_map_map[CS35L41_NUM_OTP_MAPS]
 		.word_offset = 2,
 	},
 };
+
+struct regmap_config cs35l41_regmap_i2c = {
+	.reg_bits = 32,
+	.val_bits = 32,
+	.reg_stride = CS35L41_REGSTRIDE,
+	.reg_format_endian = REGMAP_ENDIAN_BIG,
+	.val_format_endian = REGMAP_ENDIAN_BIG,
+	.max_register = CS35L41_LASTREG,
+	.reg_defaults = cs35l41_reg,
+	.num_reg_defaults = ARRAY_SIZE(cs35l41_reg),
+	.volatile_reg = cs35l41_volatile_reg,
+	.readable_reg = cs35l41_readable_reg,
+	.precious_reg = cs35l41_precious_reg,
+	.cache_type = REGCACHE_RBTREE,
+};
+EXPORT_SYMBOL_GPL(cs35l41_regmap_i2c);
+
+struct regmap_config cs35l41_regmap_spi = {
+	.reg_bits = 32,
+	.val_bits = 32,
+	.pad_bits = 16,
+	.reg_stride = CS35L41_REGSTRIDE,
+	.reg_format_endian = REGMAP_ENDIAN_BIG,
+	.val_format_endian = REGMAP_ENDIAN_BIG,
+	.max_register = CS35L41_LASTREG,
+	.reg_defaults = cs35l41_reg,
+	.num_reg_defaults = ARRAY_SIZE(cs35l41_reg),
+	.volatile_reg = cs35l41_volatile_reg,
+	.readable_reg = cs35l41_readable_reg,
+	.precious_reg = cs35l41_precious_reg,
+	.cache_type = REGCACHE_RBTREE,
+};
+EXPORT_SYMBOL_GPL(cs35l41_regmap_spi);

sound/soc/codecs/cs35l41.c

@@ -1731,6 +1731,7 @@ int cs35l41_probe(struct cs35l41_private *cs35l41,
 
 	return ret;
 }
+EXPORT_SYMBOL_GPL(cs35l41_probe);
 
 void cs35l41_remove(struct cs35l41_private *cs35l41)
 {
@@ -1739,6 +1740,7 @@ void cs35l41_remove(struct cs35l41_private *cs35l41)
 	regulator_bulk_disable(CS35L41_NUM_SUPPLIES, cs35l41->supplies);
 	gpiod_set_value_cansleep(cs35l41->reset_gpio, 0);
 }
+EXPORT_SYMBOL_GPL(cs35l41_remove);
 
 MODULE_DESCRIPTION("ASoC CS35L41 driver");
 MODULE_AUTHOR("David Rhodes, Cirrus Logic Inc, <david.rhodes@cirrus.com>");

sound/soc/codecs/cs35l41.h

@@ -538,7 +538,6 @@
 #define CS35L41_OTP_TRIM_35		0x0000400C
 #define CS35L41_OTP_TRIM_36		0x00002030
 
-#define CS35L41_MAX_CACHE_REG		36
 #define CS35L41_OTP_SIZE_WORDS		32
 #define CS35L41_NUM_OTP_ELEM		100
 #define CS35L41_NUM_OTP_MAPS		5
@@ -734,9 +733,8 @@
 #define CS35L41_RX_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE)
 #define CS35L41_TX_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE)
 
-bool cs35l41_readable_reg(struct device *dev, unsigned int reg);
-bool cs35l41_precious_reg(struct device *dev, unsigned int reg);
-bool cs35l41_volatile_reg(struct device *dev, unsigned int reg);
+extern struct regmap_config cs35l41_regmap_i2c;
+extern struct regmap_config cs35l41_regmap_spi;
 
 struct cs35l41_otp_packed_element_t {
 	u32 reg;
@@ -752,7 +750,6 @@ struct cs35l41_otp_map_element_t {
 	u32 word_offset;
 };
 
-extern const struct reg_default cs35l41_reg[CS35L41_MAX_CACHE_REG];
 extern const struct cs35l41_otp_map_element_t
 				cs35l41_otp_map_map[CS35L41_NUM_OTP_MAPS];