From 656baaebf92ae9b16644c7e10a273d8dfe1ba1f6 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 23 May 2012 12:39:07 +0100 Subject: ASoC: codecs: Refresh copyrights for Wolfson drivers Signed-off-by: Mark Brown --- sound/soc/codecs/wm8904.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'sound/soc/codecs/wm8904.c') diff --git a/sound/soc/codecs/wm8904.c b/sound/soc/codecs/wm8904.c index 65d525d74c5..db94d10b5c1 100644 --- a/sound/soc/codecs/wm8904.c +++ b/sound/soc/codecs/wm8904.c @@ -1,7 +1,7 @@ /* * wm8904.c -- WM8904 ALSA SoC Audio driver * - * Copyright 2009 Wolfson Microelectronics plc + * Copyright 2009-12 Wolfson Microelectronics plc * * Author: Mark Brown * -- cgit v1.2.3-70-g09d2 From 8cb28fd6d1e98fe4cf232d7803093a3b7b46e969 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sat, 9 Jun 2012 11:57:50 +0800 Subject: ASoC: wm8904: Convert to module_i2c_driver() Signed-off-by: Mark Brown --- sound/soc/codecs/wm8904.c | 18 +----------------- 1 file changed, 1 insertion(+), 17 deletions(-) (limited to 'sound/soc/codecs/wm8904.c') diff --git a/sound/soc/codecs/wm8904.c b/sound/soc/codecs/wm8904.c index db94d10b5c1..02bc2caac83 100644 --- a/sound/soc/codecs/wm8904.c +++ b/sound/soc/codecs/wm8904.c @@ -2313,23 +2313,7 @@ static struct i2c_driver wm8904_i2c_driver = { .id_table = wm8904_i2c_id, }; -static int __init wm8904_modinit(void) -{ - int ret = 0; - ret = i2c_add_driver(&wm8904_i2c_driver); - if (ret != 0) { - printk(KERN_ERR "Failed to register wm8904 I2C driver: %d\n", - ret); - } - return ret; -} -module_init(wm8904_modinit); - -static void __exit wm8904_exit(void) -{ - i2c_del_driver(&wm8904_i2c_driver); -} -module_exit(wm8904_exit); +module_i2c_driver(wm8904_i2c_driver); MODULE_DESCRIPTION("ASoC WM8904 driver"); MODULE_AUTHOR("Mark Brown "); -- cgit v1.2.3-70-g09d2 From d633edd95dc938f3f5f0d4e431932f4ca042bffb Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sat, 9 Jun 2012 11:26:01 +0800 Subject: ASoC: wm8904: Convert to devm_regmap_init_i2c() Signed-off-by: Mark Brown --- sound/soc/codecs/wm8904.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'sound/soc/codecs/wm8904.c') diff --git a/sound/soc/codecs/wm8904.c b/sound/soc/codecs/wm8904.c index 02bc2caac83..560a9a47596 100644 --- a/sound/soc/codecs/wm8904.c +++ b/sound/soc/codecs/wm8904.c @@ -2263,7 +2263,7 @@ static __devinit int wm8904_i2c_probe(struct i2c_client *i2c, if (wm8904 == NULL) return -ENOMEM; - wm8904->regmap = regmap_init_i2c(i2c, &wm8904_regmap); + wm8904->regmap = devm_regmap_init_i2c(i2c, &wm8904_regmap); if (IS_ERR(wm8904->regmap)) { ret = PTR_ERR(wm8904->regmap); dev_err(&i2c->dev, "Failed to allocate register map: %d\n", @@ -2283,15 +2283,12 @@ static __devinit int wm8904_i2c_probe(struct i2c_client *i2c, return 0; err: - regmap_exit(wm8904->regmap); return ret; } static __devexit int wm8904_i2c_remove(struct i2c_client *client) { - struct wm8904_priv *wm8904 = i2c_get_clientdata(client); snd_soc_unregister_codec(&client->dev); - regmap_exit(wm8904->regmap); return 0; } -- cgit v1.2.3-70-g09d2 From fd88759a42dc10f8230b3933a1ceb40bd88fccea Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sat, 9 Jun 2012 11:30:43 +0800 Subject: ASoC: wm8904: Rely entirely on the core for bias level management Even though the WM8904 is able to use idle_bias_off during both probe and resume we were needlessly leaving the device in standby mode. Instead power the device down as soon as we've confirmed that we can talk to it and don't manage the bias level at all over suspend and resume, the core will take us down to our minimum power level. Signed-off-by: Mark Brown --- sound/soc/codecs/wm8904.c | 30 +++--------------------------- 1 file changed, 3 insertions(+), 27 deletions(-) (limited to 'sound/soc/codecs/wm8904.c') diff --git a/sound/soc/codecs/wm8904.c b/sound/soc/codecs/wm8904.c index 5417b1183ac..ecab871573b 100644 --- a/sound/soc/codecs/wm8904.c +++ b/sound/soc/codecs/wm8904.c @@ -1945,25 +1945,6 @@ static struct snd_soc_dai_driver wm8904_dai = { .symmetric_rates = 1, }; -#ifdef CONFIG_PM -static int wm8904_suspend(struct snd_soc_codec *codec) -{ - wm8904_set_bias_level(codec, SND_SOC_BIAS_OFF); - - return 0; -} - -static int wm8904_resume(struct snd_soc_codec *codec) -{ - wm8904_set_bias_level(codec, SND_SOC_BIAS_STANDBY); - - return 0; -} -#else -#define wm8904_suspend NULL -#define wm8904_resume NULL -#endif - static void wm8904_handle_retune_mobile_pdata(struct snd_soc_codec *codec) { struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); @@ -2143,7 +2124,10 @@ static int wm8904_probe(struct snd_soc_codec *codec) goto err_enable; } + /* Can leave the device powered off until we need it */ regcache_cache_only(wm8904->regmap, true); + regulator_bulk_disable(ARRAY_SIZE(wm8904->supplies), wm8904->supplies); + /* Change some default settings - latch VU and enable ZC */ snd_soc_update_bits(codec, WM8904_ADC_DIGITAL_VOLUME_LEFT, WM8904_ADC_VU, WM8904_ADC_VU); @@ -2198,11 +2182,6 @@ static int wm8904_probe(struct snd_soc_codec *codec) snd_soc_update_bits(codec, WM8904_BIAS_CONTROL_0, WM8904_POBCTRL, 0); - wm8904_set_bias_level(codec, SND_SOC_BIAS_STANDBY); - - /* Bias level configuration will have done an extra enable */ - regulator_bulk_disable(ARRAY_SIZE(wm8904->supplies), wm8904->supplies); - wm8904_handle_pdata(codec); wm8904_add_widgets(codec); @@ -2220,7 +2199,6 @@ static int wm8904_remove(struct snd_soc_codec *codec) { struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); - wm8904_set_bias_level(codec, SND_SOC_BIAS_OFF); regulator_bulk_free(ARRAY_SIZE(wm8904->supplies), wm8904->supplies); kfree(wm8904->retune_mobile_texts); kfree(wm8904->drc_texts); @@ -2231,8 +2209,6 @@ static int wm8904_remove(struct snd_soc_codec *codec) static struct snd_soc_codec_driver soc_codec_dev_wm8904 = { .probe = wm8904_probe, .remove = wm8904_remove, - .suspend = wm8904_suspend, - .resume = wm8904_resume, .set_bias_level = wm8904_set_bias_level, .idle_bias_off = true, }; -- cgit v1.2.3-70-g09d2 From 03862cf62ea36d6cf3d94eee84b89578cbcf0213 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sat, 9 Jun 2012 11:41:58 +0800 Subject: ASoC: wm8904: Move regulator acquisition and device identification to I2C It's more idiomatic to have the resource allocation at this level. Signed-off-by: Mark Brown --- sound/soc/codecs/wm8904.c | 112 +++++++++++++++++++++------------------------- 1 file changed, 51 insertions(+), 61 deletions(-) (limited to 'sound/soc/codecs/wm8904.c') diff --git a/sound/soc/codecs/wm8904.c b/sound/soc/codecs/wm8904.c index ecab871573b..b178232c990 100644 --- a/sound/soc/codecs/wm8904.c +++ b/sound/soc/codecs/wm8904.c @@ -314,11 +314,6 @@ static bool wm8904_readable_register(struct device *dev, unsigned int reg) } } -static int wm8904_reset(struct snd_soc_codec *codec) -{ - return snd_soc_write(codec, WM8904_SW_RESET_AND_ID, 0); -} - static int wm8904_configure_clocking(struct snd_soc_codec *codec) { struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); @@ -2082,52 +2077,6 @@ static int wm8904_probe(struct snd_soc_codec *codec) return ret; } - for (i = 0; i < ARRAY_SIZE(wm8904->supplies); i++) - wm8904->supplies[i].supply = wm8904_supply_names[i]; - - ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8904->supplies), - wm8904->supplies); - if (ret != 0) { - dev_err(codec->dev, "Failed to request supplies: %d\n", ret); - return ret; - } - - ret = regulator_bulk_enable(ARRAY_SIZE(wm8904->supplies), - wm8904->supplies); - if (ret != 0) { - dev_err(codec->dev, "Failed to enable supplies: %d\n", ret); - goto err_get; - } - - ret = snd_soc_read(codec, WM8904_SW_RESET_AND_ID); - if (ret < 0) { - dev_err(codec->dev, "Failed to read ID register\n"); - goto err_enable; - } - if (ret != 0x8904) { - dev_err(codec->dev, "Device is not a WM8904, ID is %x\n", ret); - ret = -EINVAL; - goto err_enable; - } - - ret = snd_soc_read(codec, WM8904_REVISION); - if (ret < 0) { - dev_err(codec->dev, "Failed to read device revision: %d\n", - ret); - goto err_enable; - } - dev_info(codec->dev, "revision %c\n", ret + 'A'); - - ret = wm8904_reset(codec); - if (ret < 0) { - dev_err(codec->dev, "Failed to issue reset\n"); - goto err_enable; - } - - /* Can leave the device powered off until we need it */ - regcache_cache_only(wm8904->regmap, true); - regulator_bulk_disable(ARRAY_SIZE(wm8904->supplies), wm8904->supplies); - /* Change some default settings - latch VU and enable ZC */ snd_soc_update_bits(codec, WM8904_ADC_DIGITAL_VOLUME_LEFT, WM8904_ADC_VU, WM8904_ADC_VU); @@ -2187,19 +2136,12 @@ static int wm8904_probe(struct snd_soc_codec *codec) wm8904_add_widgets(codec); return 0; - -err_enable: - regulator_bulk_disable(ARRAY_SIZE(wm8904->supplies), wm8904->supplies); -err_get: - regulator_bulk_free(ARRAY_SIZE(wm8904->supplies), wm8904->supplies); - return ret; } static int wm8904_remove(struct snd_soc_codec *codec) { struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); - regulator_bulk_free(ARRAY_SIZE(wm8904->supplies), wm8904->supplies); kfree(wm8904->retune_mobile_texts); kfree(wm8904->drc_texts); @@ -2230,7 +2172,8 @@ static __devinit int wm8904_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct wm8904_priv *wm8904; - int ret; + unsigned int val; + int ret, i; wm8904 = devm_kzalloc(&i2c->dev, sizeof(struct wm8904_priv), GFP_KERNEL); @@ -2249,14 +2192,61 @@ static __devinit int wm8904_i2c_probe(struct i2c_client *i2c, i2c_set_clientdata(i2c, wm8904); wm8904->pdata = i2c->dev.platform_data; + for (i = 0; i < ARRAY_SIZE(wm8904->supplies); i++) + wm8904->supplies[i].supply = wm8904_supply_names[i]; + + ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(wm8904->supplies), + wm8904->supplies); + if (ret != 0) { + dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret); + return ret; + } + + ret = regulator_bulk_enable(ARRAY_SIZE(wm8904->supplies), + wm8904->supplies); + if (ret != 0) { + dev_err(&i2c->dev, "Failed to enable supplies: %d\n", ret); + return ret; + } + + ret = regmap_read(wm8904->regmap, WM8904_SW_RESET_AND_ID, &val); + if (ret < 0) { + dev_err(&i2c->dev, "Failed to read ID register: %d\n", ret); + goto err_enable; + } + if (val != 0x8904) { + dev_err(&i2c->dev, "Device is not a WM8904, ID is %x\n", val); + ret = -EINVAL; + goto err_enable; + } + + ret = regmap_read(wm8904->regmap, WM8904_REVISION, &val); + if (ret < 0) { + dev_err(&i2c->dev, "Failed to read device revision: %d\n", + ret); + goto err_enable; + } + dev_info(&i2c->dev, "revision %c\n", val + 'A'); + + ret = regmap_write(wm8904->regmap, WM8904_SW_RESET_AND_ID, 0); + if (ret < 0) { + dev_err(&i2c->dev, "Failed to issue reset: %d\n", ret); + goto err_enable; + } + + /* Can leave the device powered off until we need it */ + regcache_cache_only(wm8904->regmap, true); + regulator_bulk_disable(ARRAY_SIZE(wm8904->supplies), wm8904->supplies); + ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_wm8904, &wm8904_dai, 1); if (ret != 0) - goto err; + return ret; return 0; -err: +err_enable: + regulator_bulk_disable(ARRAY_SIZE(wm8904->supplies), wm8904->supplies); return ret; } -- cgit v1.2.3-70-g09d2 From 725e7a7b58fb27d8f97a1c4eae47cb5d37564725 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sat, 9 Jun 2012 11:57:37 +0800 Subject: ASoC: wm8904: Move register default setup into I2C probe() Get it done as early as possible, it's neater and minimises the time the pins aren't configured as requested. Signed-off-by: Mark Brown --- sound/soc/codecs/wm8904.c | 111 +++++++++++++++++++++++----------------------- 1 file changed, 55 insertions(+), 56 deletions(-) (limited to 'sound/soc/codecs/wm8904.c') diff --git a/sound/soc/codecs/wm8904.c b/sound/soc/codecs/wm8904.c index b178232c990..0013afe48e6 100644 --- a/sound/soc/codecs/wm8904.c +++ b/sound/soc/codecs/wm8904.c @@ -2054,8 +2054,7 @@ static void wm8904_handle_pdata(struct snd_soc_codec *codec) static int wm8904_probe(struct snd_soc_codec *codec) { struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); - struct wm8904_pdata *pdata = wm8904->pdata; - int ret, i; + int ret; codec->control_data = wm8904->regmap; @@ -2077,60 +2076,6 @@ static int wm8904_probe(struct snd_soc_codec *codec) return ret; } - /* Change some default settings - latch VU and enable ZC */ - snd_soc_update_bits(codec, WM8904_ADC_DIGITAL_VOLUME_LEFT, - WM8904_ADC_VU, WM8904_ADC_VU); - snd_soc_update_bits(codec, WM8904_ADC_DIGITAL_VOLUME_RIGHT, - WM8904_ADC_VU, WM8904_ADC_VU); - snd_soc_update_bits(codec, WM8904_DAC_DIGITAL_VOLUME_LEFT, - WM8904_DAC_VU, WM8904_DAC_VU); - snd_soc_update_bits(codec, WM8904_DAC_DIGITAL_VOLUME_RIGHT, - WM8904_DAC_VU, WM8904_DAC_VU); - snd_soc_update_bits(codec, WM8904_ANALOGUE_OUT1_LEFT, - WM8904_HPOUT_VU | WM8904_HPOUTLZC, - WM8904_HPOUT_VU | WM8904_HPOUTLZC); - snd_soc_update_bits(codec, WM8904_ANALOGUE_OUT1_RIGHT, - WM8904_HPOUT_VU | WM8904_HPOUTRZC, - WM8904_HPOUT_VU | WM8904_HPOUTRZC); - snd_soc_update_bits(codec, WM8904_ANALOGUE_OUT2_LEFT, - WM8904_LINEOUT_VU | WM8904_LINEOUTLZC, - WM8904_LINEOUT_VU | WM8904_LINEOUTLZC); - snd_soc_update_bits(codec, WM8904_ANALOGUE_OUT2_RIGHT, - WM8904_LINEOUT_VU | WM8904_LINEOUTRZC, - WM8904_LINEOUT_VU | WM8904_LINEOUTRZC); - snd_soc_update_bits(codec, WM8904_CLOCK_RATES_0, - WM8904_SR_MODE, 0); - - /* Apply configuration from the platform data. */ - if (wm8904->pdata) { - for (i = 0; i < WM8904_GPIO_REGS; i++) { - if (!pdata->gpio_cfg[i]) - continue; - - regmap_update_bits(wm8904->regmap, - WM8904_GPIO_CONTROL_1 + i, - 0xffff, - pdata->gpio_cfg[i]); - } - - /* Zero is the default value for these anyway */ - for (i = 0; i < WM8904_MIC_REGS; i++) - regmap_update_bits(wm8904->regmap, - WM8904_MIC_BIAS_CONTROL_0 + i, - 0xffff, - pdata->mic_cfg[i]); - } - - /* Set Class W by default - this will be managed by the Class - * G widget at runtime where bypass paths are available. - */ - snd_soc_update_bits(codec, WM8904_CLASS_W_0, - WM8904_CP_DYN_PWR, WM8904_CP_DYN_PWR); - - /* Use normal bias source */ - snd_soc_update_bits(codec, WM8904_BIAS_CONTROL_0, - WM8904_POBCTRL, 0); - wm8904_handle_pdata(codec); wm8904_add_widgets(codec); @@ -2234,6 +2179,60 @@ static __devinit int wm8904_i2c_probe(struct i2c_client *i2c, goto err_enable; } + /* Change some default settings - latch VU and enable ZC */ + regmap_update_bits(wm8904->regmap, WM8904_ADC_DIGITAL_VOLUME_LEFT, + WM8904_ADC_VU, WM8904_ADC_VU); + regmap_update_bits(wm8904->regmap, WM8904_ADC_DIGITAL_VOLUME_RIGHT, + WM8904_ADC_VU, WM8904_ADC_VU); + regmap_update_bits(wm8904->regmap, WM8904_DAC_DIGITAL_VOLUME_LEFT, + WM8904_DAC_VU, WM8904_DAC_VU); + regmap_update_bits(wm8904->regmap, WM8904_DAC_DIGITAL_VOLUME_RIGHT, + WM8904_DAC_VU, WM8904_DAC_VU); + regmap_update_bits(wm8904->regmap, WM8904_ANALOGUE_OUT1_LEFT, + WM8904_HPOUT_VU | WM8904_HPOUTLZC, + WM8904_HPOUT_VU | WM8904_HPOUTLZC); + regmap_update_bits(wm8904->regmap, WM8904_ANALOGUE_OUT1_RIGHT, + WM8904_HPOUT_VU | WM8904_HPOUTRZC, + WM8904_HPOUT_VU | WM8904_HPOUTRZC); + regmap_update_bits(wm8904->regmap, WM8904_ANALOGUE_OUT2_LEFT, + WM8904_LINEOUT_VU | WM8904_LINEOUTLZC, + WM8904_LINEOUT_VU | WM8904_LINEOUTLZC); + regmap_update_bits(wm8904->regmap, WM8904_ANALOGUE_OUT2_RIGHT, + WM8904_LINEOUT_VU | WM8904_LINEOUTRZC, + WM8904_LINEOUT_VU | WM8904_LINEOUTRZC); + regmap_update_bits(wm8904->regmap, WM8904_CLOCK_RATES_0, + WM8904_SR_MODE, 0); + + /* Apply configuration from the platform data. */ + if (wm8904->pdata) { + for (i = 0; i < WM8904_GPIO_REGS; i++) { + if (!wm8904->pdata->gpio_cfg[i]) + continue; + + regmap_update_bits(wm8904->regmap, + WM8904_GPIO_CONTROL_1 + i, + 0xffff, + wm8904->pdata->gpio_cfg[i]); + } + + /* Zero is the default value for these anyway */ + for (i = 0; i < WM8904_MIC_REGS; i++) + regmap_update_bits(wm8904->regmap, + WM8904_MIC_BIAS_CONTROL_0 + i, + 0xffff, + wm8904->pdata->mic_cfg[i]); + } + + /* Set Class W by default - this will be managed by the Class + * G widget at runtime where bypass paths are available. + */ + regmap_update_bits(wm8904->regmap, WM8904_CLASS_W_0, + WM8904_CP_DYN_PWR, WM8904_CP_DYN_PWR); + + /* Use normal bias source */ + regmap_update_bits(wm8904->regmap, WM8904_BIAS_CONTROL_0, + WM8904_POBCTRL, 0); + /* Can leave the device powered off until we need it */ regcache_cache_only(wm8904->regmap, true); regulator_bulk_disable(ARRAY_SIZE(wm8904->supplies), wm8904->supplies); -- cgit v1.2.3-70-g09d2