From 336b8423e285174ebecf02a743d69913b83bbc48 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 10 Nov 2014 22:41:46 +0100 Subject: ASoC: Move AC'97 support to its own file Currently the AC'97 support is splattered all throughout soc-core.c. Some parts are #ifdef'd some parts are not. This patch moves the AC'97 support to its own file, this should make the code a bit more clearer and also makes it possible to easily not compile it into the kernel when not needed. Signed-off-by: Lars-Peter Clausen Signed-off-by: Mark Brown --- include/sound/soc.h | 28 ++++++++++++++++++++++++++-- 1 file changed, 26 insertions(+), 2 deletions(-) (limited to 'include/sound/soc.h') diff --git a/include/sound/soc.h b/include/sound/soc.h index 7ba7130037a0..adef34fa5209 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -366,8 +366,6 @@ struct snd_soc_jack_gpio; typedef int (*hw_write_t)(void *,const char* ,int); -extern struct snd_ac97_bus_ops *soc_ac97_ops; - enum snd_soc_pcm_subclass { SND_SOC_PCM_CLASS_PCM = 0, SND_SOC_PCM_CLASS_BE = 1, @@ -500,6 +498,7 @@ int snd_soc_update_bits_locked(struct snd_soc_codec *codec, int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned int reg, unsigned int mask, unsigned int value); +#ifdef CONFIG_SND_SOC_AC97_BUS int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, struct snd_ac97_bus_ops *ops, int num); void snd_soc_free_ac97_codec(struct snd_soc_codec *codec); @@ -508,6 +507,31 @@ int snd_soc_set_ac97_ops(struct snd_ac97_bus_ops *ops); int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops, struct platform_device *pdev); +extern struct snd_ac97_bus_ops *soc_ac97_ops; + +int snd_soc_ac97_register_dai_links(struct snd_soc_card *card); +void snd_soc_ac97_add_pdata(struct snd_soc_pcm_runtime *rtd); +#else + +static inline int snd_soc_ac97_register_dai_links(struct snd_soc_card *card) +{ + return 0; +} + +static inline void snd_soc_ac97_add_pdata(struct snd_soc_pcm_runtime *rtd) {} + +static inline int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops, + struct platform_device *pdev) +{ + return 0; +} + +static inline int snd_soc_set_ac97_ops(struct snd_ac97_bus_ops *ops) +{ + return 0; +} +#endif + /* *Controls */ -- cgit v1.2.3 From eda1a701fd9589b6ed15b109558bd4f6202e3829 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 10 Nov 2014 22:41:47 +0100 Subject: ASoC: ac97: Use static ac97_bus We always pass soc_ac97_ops to snd_soc_new_ac97_codec(). So instead of allocating a snd_ac97_bus in snd_soc_new_ac97_codec() just use a static one that gets initialized when snd_soc_set_ac97_ops() is called. Also drop the device number parameter from snd_soc_new_ac97_codec(). We currently only support one device per bus and all drivers pass 0 for the device number. And if we should ever support multiple devices per bus it wouldn't be up to individual AC'97 device drivers to pick their number, but rather either the AC'97 adapter driver or the core code will assign them. Signed-off-by: Lars-Peter Clausen Acked-by: Charles Keepax Signed-off-by: Mark Brown --- include/sound/soc.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'include/sound/soc.h') diff --git a/include/sound/soc.h b/include/sound/soc.h index adef34fa5209..44b3ce531fd6 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -499,8 +499,7 @@ int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned int reg, unsigned int mask, unsigned int value); #ifdef CONFIG_SND_SOC_AC97_BUS -int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, - struct snd_ac97_bus_ops *ops, int num); +int snd_soc_new_ac97_codec(struct snd_soc_codec *codec); void snd_soc_free_ac97_codec(struct snd_soc_codec *codec); int snd_soc_set_ac97_ops(struct snd_ac97_bus_ops *ops); -- cgit v1.2.3 From ca005f324ee38308b319c693f40523d959027acf Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 10 Nov 2014 22:41:49 +0100 Subject: ASoC: ac97: Drop support for setting platform data via the CPU DAI This has no users since commit f0fba2ad1b6b ("ASoC: multi-component - ASoC Multi-Component Support") which was almost 5 years ago. Given that this runs after CODEC probe functions have been run it also doesn't seem to be that useful. So drop it altogether to make the code simpler. Signed-off-by: Lars-Peter Clausen Signed-off-by: Mark Brown --- include/sound/soc.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include/sound/soc.h') diff --git a/include/sound/soc.h b/include/sound/soc.h index 44b3ce531fd6..5b4dec693ca5 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -509,7 +509,6 @@ int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops, extern struct snd_ac97_bus_ops *soc_ac97_ops; int snd_soc_ac97_register_dai_links(struct snd_soc_card *card); -void snd_soc_ac97_add_pdata(struct snd_soc_pcm_runtime *rtd); #else static inline int snd_soc_ac97_register_dai_links(struct snd_soc_card *card) @@ -517,8 +516,6 @@ static inline int snd_soc_ac97_register_dai_links(struct snd_soc_card *card) return 0; } -static inline void snd_soc_ac97_add_pdata(struct snd_soc_pcm_runtime *rtd) {} - static inline int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops, struct platform_device *pdev) { -- cgit v1.2.3 From 6794f709b7124ff1e574c4f4c9494418ab56c4b4 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 10 Nov 2014 22:41:50 +0100 Subject: ASoC: ac97: Drop delayed device registration We have all the information and dependencies we need to initialize and register the device available in snd_soc_new_ac97_codec(). So there is no need to delay the device registration until after the card itself as been registered. This makes the code significantly simpler and also makes it possible to use the AC'97 device in the CODECs probe function. The later will be required to be able to convert the AC'97 CODEC drivers to regmap. Signed-off-by: Lars-Peter Clausen Signed-off-by: Mark Brown --- include/sound/soc.h | 10 ---------- 1 file changed, 10 deletions(-) (limited to 'include/sound/soc.h') diff --git a/include/sound/soc.h b/include/sound/soc.h index 5b4dec693ca5..206cc8d6eefa 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -507,15 +507,7 @@ int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops, struct platform_device *pdev); extern struct snd_ac97_bus_ops *soc_ac97_ops; - -int snd_soc_ac97_register_dai_links(struct snd_soc_card *card); #else - -static inline int snd_soc_ac97_register_dai_links(struct snd_soc_card *card) -{ - return 0; -} - static inline int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops, struct platform_device *pdev) { @@ -808,8 +800,6 @@ struct snd_soc_codec { struct snd_ac97 *ac97; /* for ad-hoc ac97 devices */ unsigned int cache_bypass:1; /* Suppress access to the cache */ unsigned int suspended:1; /* Codec is in suspend PM state */ - unsigned int ac97_registered:1; /* Codec has been AC97 registered */ - unsigned int ac97_created:1; /* Codec has been created by SoC */ unsigned int cache_init:1; /* codec cache has been initialized */ u32 cache_sync; /* Cache needs to be synced to hardware */ -- cgit v1.2.3 From 358a8bb5628420529e4f0b77068155ca8fa8973b Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 10 Nov 2014 22:41:53 +0100 Subject: ASoC: ac97: Push snd_ac97 pointer to the driver level Now that the ASoC core no longer needs a handle to the AC'97 device that is associated with a CODEC we can remove it from the snd_soc_codec struct and push it into the individual driver state structs like we do for other communication buses. Doing so creates a clean separation between the AC'97 bus support and the ASoC core. Signed-off-by: Lars-Peter Clausen Acked-by: Charles Keepax Signed-off-by: Mark Brown --- include/sound/soc.h | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'include/sound/soc.h') diff --git a/include/sound/soc.h b/include/sound/soc.h index 206cc8d6eefa..9e513ae11749 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -499,8 +499,8 @@ int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned int reg, unsigned int mask, unsigned int value); #ifdef CONFIG_SND_SOC_AC97_BUS -int snd_soc_new_ac97_codec(struct snd_soc_codec *codec); -void snd_soc_free_ac97_codec(struct snd_soc_codec *codec); +struct snd_ac97 *snd_soc_new_ac97_codec(struct snd_soc_codec *codec); +void snd_soc_free_ac97_codec(struct snd_ac97 *ac97); int snd_soc_set_ac97_ops(struct snd_ac97_bus_ops *ops); int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops, @@ -797,7 +797,6 @@ struct snd_soc_codec { struct list_head card_list; /* runtime */ - struct snd_ac97 *ac97; /* for ad-hoc ac97 devices */ unsigned int cache_bypass:1; /* Suppress access to the cache */ unsigned int suspended:1; /* Codec is in suspend PM state */ unsigned int cache_init:1; /* codec cache has been initialized */ -- cgit v1.2.3 From 20feb881988cdf5f53304c355ae8ee3bf82e80ec Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Tue, 18 Nov 2014 19:45:52 +0100 Subject: ASoC: Add helper functions for deferred regmap setup Some drivers (most notably the AC'97 drivers) do not have access to their regmap struct when the component/codec is registered. For those drivers the automatic regmap setup will not work and needs to be done manually, typically from the component/CODEC drivers probe callback. This patch adds a set of helper function to handle deferred regmap initialization as well as early regmap tear-down. Signed-off-by: Lars-Peter Clausen Signed-off-by: Mark Brown --- include/sound/soc.h | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) (limited to 'include/sound/soc.h') diff --git a/include/sound/soc.h b/include/sound/soc.h index 7ba7130037a0..342b43b3799e 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -1277,6 +1277,41 @@ void snd_soc_component_async_complete(struct snd_soc_component *component); int snd_soc_component_test_bits(struct snd_soc_component *component, unsigned int reg, unsigned int mask, unsigned int value); +void snd_soc_component_init_regmap(struct snd_soc_component *component, + struct regmap *regmap); +void snd_soc_component_exit_regmap(struct snd_soc_component *component); + +/** + * snd_soc_codec_init_regmap() - Initialize regmap instance for the CODEC + * @codec: The CODEC for which to initialize the regmap instance + * @regmap: The regmap instance that should be used by the CODEC + * + * This function allows deferred assignment of the regmap instance that is + * associated with the CODEC. Only use this if the regmap instance is not yet + * ready when the CODEC is registered. The function must also be called before + * the first IO attempt of the CODEC. + */ +static inline void snd_soc_codec_init_regmap(struct snd_soc_codec *codec, + struct regmap *regmap) +{ + snd_soc_component_init_regmap(&codec->component, regmap); +} + +/** + * snd_soc_codec_exit_regmap() - De-initialize regmap instance for the CODEC + * @codec: The CODEC for which to de-initialize the regmap instance + * + * Calls regmap_exit() on the regmap instance associated to the CODEC and + * removes the regmap instance from the CODEC. + * + * This function should only be used if snd_soc_codec_init_regmap() was used to + * initialize the regmap instance. + */ +static inline void snd_soc_codec_exit_regmap(struct snd_soc_codec *codec) +{ + snd_soc_component_exit_regmap(&codec->component); +} + /* device driver data */ static inline void snd_soc_card_set_drvdata(struct snd_soc_card *card, -- cgit v1.2.3 From e874bf5f7647a9fdf14d72dbb376ec95327e3a81 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Tue, 25 Nov 2014 21:41:03 +0100 Subject: ASoC: Disable regmap helpers if regmap is disabled If regmap is disabled there will be no users of the ASoC regmap helpers. Furthermore regmap_exit() will no be defined causing the following compile error: sound/soc/soc-core.c: In function 'snd_soc_component_exit_regmap': sound/soc/soc-core.c:2645:2: error: implicit declaration of function 'regmap_exit' [-Werror=implicit-function-declaration] So disable the helpers if regmap is disabled. Reported-by: kbuild test robot Fixes: 20feb881988c ASoC: Add helper functions for deferred regmap setup") Signed-off-by: Lars-Peter Clausen Signed-off-by: Mark Brown --- include/sound/soc.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/sound/soc.h') diff --git a/include/sound/soc.h b/include/sound/soc.h index 80ca937a20da..b53234835936 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -1286,6 +1286,8 @@ void snd_soc_component_async_complete(struct snd_soc_component *component); int snd_soc_component_test_bits(struct snd_soc_component *component, unsigned int reg, unsigned int mask, unsigned int value); +#ifdef CONFIG_REGMAP + void snd_soc_component_init_regmap(struct snd_soc_component *component, struct regmap *regmap); void snd_soc_component_exit_regmap(struct snd_soc_component *component); @@ -1321,6 +1323,8 @@ static inline void snd_soc_codec_exit_regmap(struct snd_soc_codec *codec) snd_soc_component_exit_regmap(&codec->component); } +#endif + /* device driver data */ static inline void snd_soc_card_set_drvdata(struct snd_soc_card *card, -- cgit v1.2.3