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Commit 6b10998d authored by Lars-Peter Clausen's avatar Lars-Peter Clausen Committed by Mark Brown
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ASoC: sigmadsp: Split regmap and I2C support into separate modules 



When the SigmaDSP module is built-in, but the I2C core is build as a module
we'll get a undefined reference:

	sound/built-in.o: In function `sigma_action_write_i2c':
		:(.text+0x5d8d4): undefined reference to `i2c_master_send'

This can happen if a audio driver that is using the regmap SigmaDSP interface is
built into the kernel, but core I2C support is build as a module. To fix this
split the SigmaDSP module into three modules, one module providing the core
infrastructure and two small modules implementing the regmap and I2C interfaces.
This allows e.g. the core infrastructure and regmap support to be built into the
kernel while I2C support can still be build as a module.

Fixes: dab464b6 ("ASoC: Add ADAU1361/ADAU1761 audio CODEC support")
Reported-by: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: default avatarMark Brown <broonie@linaro.org>
parent e1d4d3c8

sound/soc/codecs/Kconfig

+10 −2
Original line number Diff line number Diff line
@@ -225,11 +225,11 @@ config SND_SOC_ADAU1373 
config SND_SOC_ADAU1701

	tristate "Analog Devices ADAU1701 CODEC"

	depends on I2C

	select SND_SOC_SIGMADSP

	select SND_SOC_SIGMADSP_I2C



config SND_SOC_ADAU17X1

	tristate

	select SND_SOC_SIGMADSP

	select SND_SOC_SIGMADSP_REGMAP



config SND_SOC_ADAU1761

	tristate
@@ -476,6 +476,14 @@ config SND_SOC_SIGMADSP 
	tristate

	select CRC32



config SND_SOC_SIGMADSP_I2C

	tristate

	select SND_SOC_SIGMADSP



config SND_SOC_SIGMADSP_REGMAP

	tristate

	select SND_SOC_SIGMADSP



config SND_SOC_SIRF_AUDIO_CODEC

	tristate "SiRF SoC internal audio codec"

	select REGMAP_MMIO

sound/soc/codecs/Makefile

+4 −0
Original line number Diff line number Diff line
@@ -77,6 +77,8 @@ snd-soc-sgtl5000-objs := sgtl5000.o 
snd-soc-alc5623-objs := alc5623.o

snd-soc-alc5632-objs := alc5632.o

snd-soc-sigmadsp-objs := sigmadsp.o

snd-soc-sigmadsp-i2c-objs := sigmadsp-i2c.o

snd-soc-sigmadsp-regmap-objs := sigmadsp-regmap.o

snd-soc-si476x-objs := si476x.o

snd-soc-sirf-audio-codec-objs := sirf-audio-codec.o

snd-soc-sn95031-objs := sn95031.o
@@ -240,6 +242,8 @@ obj-$(CONFIG_SND_SOC_RT5651) += snd-soc-rt5651.o 
obj-$(CONFIG_SND_SOC_RT5677)	+= snd-soc-rt5677.o

obj-$(CONFIG_SND_SOC_SGTL5000)  += snd-soc-sgtl5000.o

obj-$(CONFIG_SND_SOC_SIGMADSP)	+= snd-soc-sigmadsp.o

obj-$(CONFIG_SND_SOC_SIGMADSP_I2C)	+= snd-soc-sigmadsp-i2c.o

obj-$(CONFIG_SND_SOC_SIGMADSP_REGMAP)	+= snd-soc-sigmadsp-regmap.o

obj-$(CONFIG_SND_SOC_SI476X)	+= snd-soc-si476x.o

obj-$(CONFIG_SND_SOC_SN95031)	+=snd-soc-sn95031.o

obj-$(CONFIG_SND_SOC_SPDIF)	+= snd-soc-spdif-rx.o snd-soc-spdif-tx.o

sound/soc/codecs/sigmadsp-i2c.c

0 → 100644
+35 −0
Original line number Diff line number Diff line 
/*

 * Load Analog Devices SigmaStudio firmware files

 *

 * Copyright 2009-2011 Analog Devices Inc.

 *

 * Licensed under the GPL-2 or later.

 */



#include <linux/i2c.h>

#include <linux/export.h>

#include <linux/module.h>



#include "sigmadsp.h"



static int sigma_action_write_i2c(void *control_data,

	const struct sigma_action *sa, size_t len)

{

	return i2c_master_send(control_data, (const unsigned char *)&sa->addr,

		len);

}



int process_sigma_firmware(struct i2c_client *client, const char *name)

{

	struct sigma_firmware ssfw;



	ssfw.control_data = client;

	ssfw.write = sigma_action_write_i2c;



	return _process_sigma_firmware(&client->dev, &ssfw, name);

}

EXPORT_SYMBOL(process_sigma_firmware);



MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");

MODULE_DESCRIPTION("SigmaDSP I2C firmware loader");

MODULE_LICENSE("GPL");

sound/soc/codecs/sigmadsp-regmap.c

0 → 100644
+36 −0
Original line number Diff line number Diff line 
/*

 * Load Analog Devices SigmaStudio firmware files

 *

 * Copyright 2009-2011 Analog Devices Inc.

 *

 * Licensed under the GPL-2 or later.

 */



#include <linux/regmap.h>

#include <linux/export.h>

#include <linux/module.h>



#include "sigmadsp.h"



static int sigma_action_write_regmap(void *control_data,

	const struct sigma_action *sa, size_t len)

{

	return regmap_raw_write(control_data, be16_to_cpu(sa->addr),

		sa->payload, len - 2);

}



int process_sigma_firmware_regmap(struct device *dev, struct regmap *regmap,

	const char *name)

{

	struct sigma_firmware ssfw;



	ssfw.control_data = regmap;

	ssfw.write = sigma_action_write_regmap;



	return _process_sigma_firmware(dev, &ssfw, name);

}

EXPORT_SYMBOL(process_sigma_firmware_regmap);



MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");

MODULE_DESCRIPTION("SigmaDSP regmap firmware loader");

MODULE_LICENSE("GPL");

sound/soc/codecs/sigmadsp.c

+2 −63
Original line number Diff line number Diff line
@@ -34,23 +34,6 @@ enum { 
	SIGMA_ACTION_END,

};



struct sigma_action {

	u8 instr;

	u8 len_hi;

	__le16 len;

	__be16 addr;

	unsigned char payload[];

} __packed;



struct sigma_firmware {

	const struct firmware *fw;

	size_t pos;



	void *control_data;

	int (*write)(void *control_data, const struct sigma_action *sa,

			size_t len);

};



static inline u32 sigma_action_len(struct sigma_action *sa)

{

	return (sa->len_hi << 16) | le16_to_cpu(sa->len);
@@ -138,7 +121,7 @@ process_sigma_actions(struct sigma_firmware *ssfw) 
	return 0;

}



static int _process_sigma_firmware(struct device *dev,

int _process_sigma_firmware(struct device *dev,

	struct sigma_firmware *ssfw, const char *name)

{

	int ret;
@@ -197,50 +180,6 @@ static int _process_sigma_firmware(struct device *dev, 


	return ret;

}



#if IS_ENABLED(CONFIG_I2C)



static int sigma_action_write_i2c(void *control_data,

	const struct sigma_action *sa, size_t len)

{

	return i2c_master_send(control_data, (const unsigned char *)&sa->addr,

		len);

}



int process_sigma_firmware(struct i2c_client *client, const char *name)

{

	struct sigma_firmware ssfw;



	ssfw.control_data = client;

	ssfw.write = sigma_action_write_i2c;



	return _process_sigma_firmware(&client->dev, &ssfw, name);

}

EXPORT_SYMBOL(process_sigma_firmware);



#endif



#if IS_ENABLED(CONFIG_REGMAP)



static int sigma_action_write_regmap(void *control_data,

	const struct sigma_action *sa, size_t len)

{

	return regmap_raw_write(control_data, be16_to_cpu(sa->addr),

		sa->payload, len - 2);

}



int process_sigma_firmware_regmap(struct device *dev, struct regmap *regmap,

	const char *name)

{

	struct sigma_firmware ssfw;



	ssfw.control_data = regmap;

	ssfw.write = sigma_action_write_regmap;



	return _process_sigma_firmware(dev, &ssfw, name);

}

EXPORT_SYMBOL(process_sigma_firmware_regmap);



#endif

EXPORT_SYMBOL_GPL(_process_sigma_firmware);



MODULE_LICENSE("GPL");