* [PATCH 0/2] ASoC: da7219: Codec soft reset and AAD improvements
@ 2016-09-26 13:29 Adam Thomson
2016-09-26 13:29 ` [PATCH 1/2] ASoC: da7219: Reset codec gracefully, if still active Adam Thomson
2016-09-26 13:29 ` [PATCH 2/2] ASoC: da7219: Disable AAD if codec is not a wake-up source Adam Thomson
0 siblings, 2 replies; 5+ messages in thread
From: Adam Thomson @ 2016-09-26 13:29 UTC (permalink / raw)
To: Mark Brown, Liam Girdwood, Jaroslav Kysela, Takashi Iwai
Cc: Support Opensource, alsa-devel, linux-kernel,
Sathyanarayana Nujella, Xing Zheng, Hsin-Yu Chao
This patch set makes the following updates to the driver code:
1) Ensures codec is properly reset at startup, and if previously active then
disable audio paths prior to reset.
2) Disables AAD in suspend, if device is not a wake-up source.
Changes are based on top of latest code introduced under the following commits:
ASoC: da7219: software reset codec at probe
ASoC: da7219: Support HP detect procedure when MCLK not present
Adam Thomson (2):
ASoC: da7219: Reset codec gracefully, if still active
ASoC: da7219: Disable AAD if codec is not a wake-up source
include/sound/da7219.h | 2 ++
sound/soc/codecs/da7219-aad.c | 56 ++++++++++++++++++++++++++++++++++++++++
sound/soc/codecs/da7219-aad.h | 5 ++++
sound/soc/codecs/da7219.c | 60 +++++++++++++++++++++++++++++++------------
sound/soc/codecs/da7219.h | 6 +++++
5 files changed, 113 insertions(+), 16 deletions(-)
--
1.9.3
^ permalink raw reply [flat|nested] 5+ messages in thread* [PATCH 1/2] ASoC: da7219: Reset codec gracefully, if still active 2016-09-26 13:29 [PATCH 0/2] ASoC: da7219: Codec soft reset and AAD improvements Adam Thomson @ 2016-09-26 13:29 ` Adam Thomson 2016-09-26 16:43 ` Applied "ASoC: da7219: Reset codec gracefully, if still active" to the asoc tree Mark Brown 2016-09-26 13:29 ` [PATCH 2/2] ASoC: da7219: Disable AAD if codec is not a wake-up source Adam Thomson 1 sibling, 1 reply; 5+ messages in thread From: Adam Thomson @ 2016-09-26 13:29 UTC (permalink / raw) To: Mark Brown, Liam Girdwood, Jaroslav Kysela, Takashi Iwai Cc: Support Opensource, alsa-devel, linux-kernel, Sathyanarayana Nujella, Xing Zheng, Hsin-Yu Chao Currently the reset code in i2c_probe only resets the AAD part of the device and not the entire codec. This patch updates the driver to resolve this and ensures that if the codec is still active from a previous boot then the audio paths are powered down prior to reset. Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> --- sound/soc/codecs/da7219.c | 30 +++++++++++++++++++++++++++--- sound/soc/codecs/da7219.h | 5 +++++ 2 files changed, 32 insertions(+), 3 deletions(-) diff --git a/sound/soc/codecs/da7219.c b/sound/soc/codecs/da7219.c index 9d08c11..eecb6d6 100644 --- a/sound/soc/codecs/da7219.c +++ b/sound/soc/codecs/da7219.c @@ -1925,7 +1925,8 @@ static int da7219_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct da7219_priv *da7219; - int ret; + unsigned int system_active, system_status; + int i, ret; da7219 = devm_kzalloc(&i2c->dev, sizeof(struct da7219_priv), GFP_KERNEL); @@ -1941,14 +1942,37 @@ static int da7219_i2c_probe(struct i2c_client *i2c, return ret; } - /* Software reset codec. */ + regcache_cache_bypass(da7219->regmap, true); + + /* Disable audio paths if still active from previous start */ + regmap_read(da7219->regmap, DA7219_SYSTEM_ACTIVE, &system_active); + if (system_active) { + regmap_write(da7219->regmap, DA7219_GAIN_RAMP_CTRL, + DA7219_GAIN_RAMP_RATE_NOMINAL); + regmap_write(da7219->regmap, DA7219_SYSTEM_MODES_INPUT, 0x00); + regmap_write(da7219->regmap, DA7219_SYSTEM_MODES_OUTPUT, 0x01); + + for (i = 0; i < DA7219_SYS_STAT_CHECK_RETRIES; ++i) { + regmap_read(da7219->regmap, DA7219_SYSTEM_STATUS, + &system_status); + if (!system_status) + break; + + msleep(DA7219_SYS_STAT_CHECK_DELAY); + } + } + + /* Soft reset codec */ regmap_write_bits(da7219->regmap, DA7219_ACCDET_CONFIG_1, DA7219_ACCDET_EN_MASK, 0); regmap_write_bits(da7219->regmap, DA7219_CIF_CTRL, - DA7219_CIF_REG_SOFT_RESET_MASK, 0); + DA7219_CIF_REG_SOFT_RESET_MASK, + DA7219_CIF_REG_SOFT_RESET_MASK); regmap_write_bits(da7219->regmap, DA7219_SYSTEM_ACTIVE, DA7219_SYSTEM_ACTIVE_MASK, 0); + regcache_cache_bypass(da7219->regmap, false); + ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_da7219, &da7219_dai, 1); if (ret < 0) { diff --git a/sound/soc/codecs/da7219.h b/sound/soc/codecs/da7219.h index 545576d..f1b3ad8 100644 --- a/sound/soc/codecs/da7219.h +++ b/sound/soc/codecs/da7219.h @@ -578,6 +578,7 @@ #define DA7219_GAIN_RAMP_RATE_SHIFT 0 #define DA7219_GAIN_RAMP_RATE_MASK (0x3 << 0) #define DA7219_GAIN_RAMP_RATE_X8 (0x0 << 0) +#define DA7219_GAIN_RAMP_RATE_NOMINAL (0x1 << 0) #define DA7219_GAIN_RAMP_RATE_MAX 4 /* DA7219_PC_COUNT = 0x94 */ @@ -772,6 +773,10 @@ /* SRM */ #define DA7219_SRM_CHECK_RETRIES 8 +/* System Controller */ +#define DA7219_SYS_STAT_CHECK_RETRIES 6 +#define DA7219_SYS_STAT_CHECK_DELAY 50 + enum da7219_clk_src { DA7219_CLKSRC_MCLK = 0, DA7219_CLKSRC_MCLK_SQR, -- 1.9.3 ^ permalink raw reply related [flat|nested] 5+ messages in thread
* Applied "ASoC: da7219: Reset codec gracefully, if still active" to the asoc tree 2016-09-26 13:29 ` [PATCH 1/2] ASoC: da7219: Reset codec gracefully, if still active Adam Thomson @ 2016-09-26 16:43 ` Mark Brown 0 siblings, 0 replies; 5+ messages in thread From: Mark Brown @ 2016-09-26 16:43 UTC (permalink / raw) To: Adam Thomson; +Cc: Mark Brown The patch ASoC: da7219: Reset codec gracefully, if still active has been applied to the asoc tree at git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark >From a7f16ea90ecffde4d4915eb7c81b11428e636920 Mon Sep 17 00:00:00 2001 From: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Date: Mon, 26 Sep 2016 14:29:20 +0100 Subject: [PATCH] ASoC: da7219: Reset codec gracefully, if still active Currently the reset code in i2c_probe only resets the AAD part of the device and not the entire codec. This patch updates the driver to resolve this and ensures that if the codec is still active from a previous boot then the audio paths are powered down prior to reset. Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Signed-off-by: Mark Brown <broonie@kernel.org> --- sound/soc/codecs/da7219.c | 30 +++++++++++++++++++++++++++--- sound/soc/codecs/da7219.h | 5 +++++ 2 files changed, 32 insertions(+), 3 deletions(-) diff --git a/sound/soc/codecs/da7219.c b/sound/soc/codecs/da7219.c index 9d08c11b6f14..eecb6d6c29cf 100644 --- a/sound/soc/codecs/da7219.c +++ b/sound/soc/codecs/da7219.c @@ -1925,7 +1925,8 @@ static int da7219_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct da7219_priv *da7219; - int ret; + unsigned int system_active, system_status; + int i, ret; da7219 = devm_kzalloc(&i2c->dev, sizeof(struct da7219_priv), GFP_KERNEL); @@ -1941,14 +1942,37 @@ static int da7219_i2c_probe(struct i2c_client *i2c, return ret; } - /* Software reset codec. */ + regcache_cache_bypass(da7219->regmap, true); + + /* Disable audio paths if still active from previous start */ + regmap_read(da7219->regmap, DA7219_SYSTEM_ACTIVE, &system_active); + if (system_active) { + regmap_write(da7219->regmap, DA7219_GAIN_RAMP_CTRL, + DA7219_GAIN_RAMP_RATE_NOMINAL); + regmap_write(da7219->regmap, DA7219_SYSTEM_MODES_INPUT, 0x00); + regmap_write(da7219->regmap, DA7219_SYSTEM_MODES_OUTPUT, 0x01); + + for (i = 0; i < DA7219_SYS_STAT_CHECK_RETRIES; ++i) { + regmap_read(da7219->regmap, DA7219_SYSTEM_STATUS, + &system_status); + if (!system_status) + break; + + msleep(DA7219_SYS_STAT_CHECK_DELAY); + } + } + + /* Soft reset codec */ regmap_write_bits(da7219->regmap, DA7219_ACCDET_CONFIG_1, DA7219_ACCDET_EN_MASK, 0); regmap_write_bits(da7219->regmap, DA7219_CIF_CTRL, - DA7219_CIF_REG_SOFT_RESET_MASK, 0); + DA7219_CIF_REG_SOFT_RESET_MASK, + DA7219_CIF_REG_SOFT_RESET_MASK); regmap_write_bits(da7219->regmap, DA7219_SYSTEM_ACTIVE, DA7219_SYSTEM_ACTIVE_MASK, 0); + regcache_cache_bypass(da7219->regmap, false); + ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_da7219, &da7219_dai, 1); if (ret < 0) { diff --git a/sound/soc/codecs/da7219.h b/sound/soc/codecs/da7219.h index 545576ddf50c..f1b3ad835270 100644 --- a/sound/soc/codecs/da7219.h +++ b/sound/soc/codecs/da7219.h @@ -578,6 +578,7 @@ #define DA7219_GAIN_RAMP_RATE_SHIFT 0 #define DA7219_GAIN_RAMP_RATE_MASK (0x3 << 0) #define DA7219_GAIN_RAMP_RATE_X8 (0x0 << 0) +#define DA7219_GAIN_RAMP_RATE_NOMINAL (0x1 << 0) #define DA7219_GAIN_RAMP_RATE_MAX 4 /* DA7219_PC_COUNT = 0x94 */ @@ -772,6 +773,10 @@ /* SRM */ #define DA7219_SRM_CHECK_RETRIES 8 +/* System Controller */ +#define DA7219_SYS_STAT_CHECK_RETRIES 6 +#define DA7219_SYS_STAT_CHECK_DELAY 50 + enum da7219_clk_src { DA7219_CLKSRC_MCLK = 0, DA7219_CLKSRC_MCLK_SQR, -- 2.9.3 ^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH 2/2] ASoC: da7219: Disable AAD if codec is not a wake-up source 2016-09-26 13:29 [PATCH 0/2] ASoC: da7219: Codec soft reset and AAD improvements Adam Thomson 2016-09-26 13:29 ` [PATCH 1/2] ASoC: da7219: Reset codec gracefully, if still active Adam Thomson @ 2016-09-26 13:29 ` Adam Thomson 2016-09-26 16:43 ` Applied "ASoC: da7219: Disable AAD if codec is not a wake-up source" to the asoc tree Mark Brown 1 sibling, 1 reply; 5+ messages in thread From: Adam Thomson @ 2016-09-26 13:29 UTC (permalink / raw) To: Mark Brown, Liam Girdwood, Jaroslav Kysela, Takashi Iwai Cc: Support Opensource, alsa-devel, linux-kernel, Sathyanarayana Nujella, Xing Zheng, Hsin-Yu Chao Currently if AAD is enabled in the device, during system suspend the feature remains, regardless of whether the codec is a wake-up source or not. This means some additional power is being used which is unnecessary, and can causes issues with some platforms' IRQ handlers where state changes during system suspend aren't captured. This patch updates the driver to disable AAD during suspend, if we're not a wake-up source, and then re-enables this on resume. Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> --- include/sound/da7219.h | 2 ++ sound/soc/codecs/da7219-aad.c | 56 +++++++++++++++++++++++++++++++++++++++++++ sound/soc/codecs/da7219-aad.h | 5 ++++ sound/soc/codecs/da7219.c | 30 +++++++++++++---------- sound/soc/codecs/da7219.h | 1 + 5 files changed, 81 insertions(+), 13 deletions(-) diff --git a/include/sound/da7219.h b/include/sound/da7219.h index 02876ac..409ef139 100644 --- a/include/sound/da7219.h +++ b/include/sound/da7219.h @@ -34,6 +34,8 @@ enum da7219_mic_amp_in_sel { struct da7219_aad_pdata; struct da7219_pdata { + bool wakeup_source; + /* Mic */ enum da7219_micbias_voltage micbias_lvl; enum da7219_mic_amp_in_sel mic_amp_in_sel; diff --git a/sound/soc/codecs/da7219-aad.c b/sound/soc/codecs/da7219-aad.c index fc27dab..2b8914d 100644 --- a/sound/soc/codecs/da7219-aad.c +++ b/sound/soc/codecs/da7219-aad.c @@ -797,6 +797,62 @@ static void da7219_aad_handle_pdata(struct snd_soc_codec *codec) /* + * Suspend/Resume + */ + +void da7219_aad_suspend(struct snd_soc_codec *codec) +{ + struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec); + struct da7219_aad_priv *da7219_aad = da7219->aad; + struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec); + u8 micbias_ctrl; + + if (da7219_aad->jack) { + /* Disable jack detection during suspend */ + snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_1, + DA7219_ACCDET_EN_MASK, 0); + + /* + * If we have a 4-pole jack inserted, then micbias will be + * enabled. We can disable micbias here, and keep a note to + * re-enable it on resume. If jack removal occurred during + * suspend then this will be dealt with through the IRQ handler. + */ + if (da7219_aad->jack_inserted) { + micbias_ctrl = snd_soc_read(codec, DA7219_MICBIAS_CTRL); + if (micbias_ctrl & DA7219_MICBIAS1_EN_MASK) { + snd_soc_dapm_disable_pin(dapm, "Mic Bias"); + snd_soc_dapm_sync(dapm); + da7219_aad->micbias_resume_enable = true; + } + } + } +} + +void da7219_aad_resume(struct snd_soc_codec *codec) +{ + struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec); + struct da7219_aad_priv *da7219_aad = da7219->aad; + struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec); + + if (da7219_aad->jack) { + /* Re-enable micbias if previously enabled for 4-pole jack */ + if (da7219_aad->jack_inserted && + da7219_aad->micbias_resume_enable) { + snd_soc_dapm_force_enable_pin(dapm, "Mic Bias"); + snd_soc_dapm_sync(dapm); + da7219_aad->micbias_resume_enable = false; + } + + /* Re-enable jack detection */ + snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_1, + DA7219_ACCDET_EN_MASK, + DA7219_ACCDET_EN_MASK); + } +} + + +/* * Init/Exit */ diff --git a/sound/soc/codecs/da7219-aad.h b/sound/soc/codecs/da7219-aad.h index a34be48..117a3d7 100644 --- a/sound/soc/codecs/da7219-aad.h +++ b/sound/soc/codecs/da7219-aad.h @@ -201,12 +201,17 @@ struct da7219_aad_priv { struct work_struct hptest_work; struct snd_soc_jack *jack; + bool micbias_resume_enable; bool jack_inserted; }; /* AAD control */ void da7219_aad_jack_det(struct snd_soc_codec *codec, struct snd_soc_jack *jack); +/* Suspend/Resume */ +void da7219_aad_suspend(struct snd_soc_codec *codec); +void da7219_aad_resume(struct snd_soc_codec *codec); + /* Init/Exit */ int da7219_aad_init(struct snd_soc_codec *codec); void da7219_aad_exit(struct snd_soc_codec *codec); diff --git a/sound/soc/codecs/da7219.c b/sound/soc/codecs/da7219.c index eecb6d6..65f7e98 100644 --- a/sound/soc/codecs/da7219.c +++ b/sound/soc/codecs/da7219.c @@ -1482,6 +1482,8 @@ static struct da7219_pdata *da7219_fw_to_pdata(struct snd_soc_codec *codec) if (!pdata) return NULL; + pdata->wakeup_source = device_property_read_bool(dev, "wakeup-source"); + if (device_property_read_u32(dev, "dlg,micbias-lvl", &of_val32) >= 0) pdata->micbias_lvl = da7219_fw_micbias_lvl(dev, of_val32); else @@ -1524,20 +1526,21 @@ static int da7219_set_bias_level(struct snd_soc_codec *codec, break; case SND_SOC_BIAS_STANDBY: - if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) { + if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) /* Master bias */ snd_soc_update_bits(codec, DA7219_REFERENCES, DA7219_BIAS_EN_MASK, DA7219_BIAS_EN_MASK); - } else { + + if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_PREPARE) { /* Remove MCLK */ if (da7219->mclk) clk_disable_unprepare(da7219->mclk); } break; case SND_SOC_BIAS_OFF: - /* Only disable master bias if jack detection not active */ - if (!da7219->aad->jack) + /* Only disable master bias if we're not a wake-up source */ + if (!da7219->wakeup_source) snd_soc_update_bits(codec, DA7219_REFERENCES, DA7219_BIAS_EN_MASK, 0); @@ -1603,6 +1606,8 @@ static void da7219_handle_pdata(struct snd_soc_codec *codec) if (pdata) { u8 micbias_lvl = 0; + da7219->wakeup_source = pdata->wakeup_source; + /* Mic Bias voltages */ switch (pdata->micbias_lvl) { case DA7219_MICBIAS_1_6V: @@ -1737,11 +1742,11 @@ static int da7219_suspend(struct snd_soc_codec *codec) { struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec); - snd_soc_codec_force_bias_level(codec, SND_SOC_BIAS_OFF); + /* Suspend AAD if we're not a wake-up source */ + if (!da7219->wakeup_source) + da7219_aad_suspend(codec); - /* Put device into standby mode if jack detection disabled */ - if (!da7219->aad->jack) - snd_soc_write(codec, DA7219_SYSTEM_ACTIVE, 0); + snd_soc_codec_force_bias_level(codec, SND_SOC_BIAS_OFF); return 0; } @@ -1750,13 +1755,12 @@ static int da7219_resume(struct snd_soc_codec *codec) { struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec); - /* Put device into active mode if previously pushed to standby */ - if (!da7219->aad->jack) - snd_soc_write(codec, DA7219_SYSTEM_ACTIVE, - DA7219_SYSTEM_ACTIVE_MASK); - snd_soc_codec_force_bias_level(codec, SND_SOC_BIAS_STANDBY); + /* Resume AAD if previously suspended */ + if (!da7219->wakeup_source) + da7219_aad_resume(codec); + return 0; } #else diff --git a/sound/soc/codecs/da7219.h b/sound/soc/codecs/da7219.h index f1b3ad8..66d3bad 100644 --- a/sound/soc/codecs/da7219.h +++ b/sound/soc/codecs/da7219.h @@ -803,6 +803,7 @@ struct da7219_priv { struct da7219_aad_priv *aad; struct da7219_pdata *pdata; + bool wakeup_source; struct regulator_bulk_data supplies[DA7219_NUM_SUPPLIES]; struct regmap *regmap; struct mutex lock; -- 1.9.3 ^ permalink raw reply related [flat|nested] 5+ messages in thread
* Applied "ASoC: da7219: Disable AAD if codec is not a wake-up source" to the asoc tree 2016-09-26 13:29 ` [PATCH 2/2] ASoC: da7219: Disable AAD if codec is not a wake-up source Adam Thomson @ 2016-09-26 16:43 ` Mark Brown 0 siblings, 0 replies; 5+ messages in thread From: Mark Brown @ 2016-09-26 16:43 UTC (permalink / raw) To: Adam Thomson; +Cc: Mark Brown The patch ASoC: da7219: Disable AAD if codec is not a wake-up source has been applied to the asoc tree at git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark >From bb0c35fcaf8f2ad3383dd43ca8abf5203cd06cc3 Mon Sep 17 00:00:00 2001 From: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Date: Mon, 26 Sep 2016 14:29:21 +0100 Subject: [PATCH] ASoC: da7219: Disable AAD if codec is not a wake-up source Currently if AAD is enabled in the device, during system suspend the feature remains, regardless of whether the codec is a wake-up source or not. This means some additional power is being used which is unnecessary, and can causes issues with some platforms' IRQ handlers where state changes during system suspend aren't captured. This patch updates the driver to disable AAD during suspend, if we're not a wake-up source, and then re-enables this on resume. Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Signed-off-by: Mark Brown <broonie@kernel.org> --- include/sound/da7219.h | 2 ++ sound/soc/codecs/da7219-aad.c | 56 +++++++++++++++++++++++++++++++++++++++++++ sound/soc/codecs/da7219-aad.h | 5 ++++ sound/soc/codecs/da7219.c | 30 +++++++++++++---------- sound/soc/codecs/da7219.h | 1 + 5 files changed, 81 insertions(+), 13 deletions(-) diff --git a/include/sound/da7219.h b/include/sound/da7219.h index 02876acdc840..409ef1397fd3 100644 --- a/include/sound/da7219.h +++ b/include/sound/da7219.h @@ -34,6 +34,8 @@ enum da7219_mic_amp_in_sel { struct da7219_aad_pdata; struct da7219_pdata { + bool wakeup_source; + /* Mic */ enum da7219_micbias_voltage micbias_lvl; enum da7219_mic_amp_in_sel mic_amp_in_sel; diff --git a/sound/soc/codecs/da7219-aad.c b/sound/soc/codecs/da7219-aad.c index fc27dab3d6ba..2b8914dd5990 100644 --- a/sound/soc/codecs/da7219-aad.c +++ b/sound/soc/codecs/da7219-aad.c @@ -797,6 +797,62 @@ static void da7219_aad_handle_pdata(struct snd_soc_codec *codec) /* + * Suspend/Resume + */ + +void da7219_aad_suspend(struct snd_soc_codec *codec) +{ + struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec); + struct da7219_aad_priv *da7219_aad = da7219->aad; + struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec); + u8 micbias_ctrl; + + if (da7219_aad->jack) { + /* Disable jack detection during suspend */ + snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_1, + DA7219_ACCDET_EN_MASK, 0); + + /* + * If we have a 4-pole jack inserted, then micbias will be + * enabled. We can disable micbias here, and keep a note to + * re-enable it on resume. If jack removal occurred during + * suspend then this will be dealt with through the IRQ handler. + */ + if (da7219_aad->jack_inserted) { + micbias_ctrl = snd_soc_read(codec, DA7219_MICBIAS_CTRL); + if (micbias_ctrl & DA7219_MICBIAS1_EN_MASK) { + snd_soc_dapm_disable_pin(dapm, "Mic Bias"); + snd_soc_dapm_sync(dapm); + da7219_aad->micbias_resume_enable = true; + } + } + } +} + +void da7219_aad_resume(struct snd_soc_codec *codec) +{ + struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec); + struct da7219_aad_priv *da7219_aad = da7219->aad; + struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec); + + if (da7219_aad->jack) { + /* Re-enable micbias if previously enabled for 4-pole jack */ + if (da7219_aad->jack_inserted && + da7219_aad->micbias_resume_enable) { + snd_soc_dapm_force_enable_pin(dapm, "Mic Bias"); + snd_soc_dapm_sync(dapm); + da7219_aad->micbias_resume_enable = false; + } + + /* Re-enable jack detection */ + snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_1, + DA7219_ACCDET_EN_MASK, + DA7219_ACCDET_EN_MASK); + } +} + + +/* * Init/Exit */ diff --git a/sound/soc/codecs/da7219-aad.h b/sound/soc/codecs/da7219-aad.h index a34be4828f97..117a3d7ccd31 100644 --- a/sound/soc/codecs/da7219-aad.h +++ b/sound/soc/codecs/da7219-aad.h @@ -201,12 +201,17 @@ struct da7219_aad_priv { struct work_struct hptest_work; struct snd_soc_jack *jack; + bool micbias_resume_enable; bool jack_inserted; }; /* AAD control */ void da7219_aad_jack_det(struct snd_soc_codec *codec, struct snd_soc_jack *jack); +/* Suspend/Resume */ +void da7219_aad_suspend(struct snd_soc_codec *codec); +void da7219_aad_resume(struct snd_soc_codec *codec); + /* Init/Exit */ int da7219_aad_init(struct snd_soc_codec *codec); void da7219_aad_exit(struct snd_soc_codec *codec); diff --git a/sound/soc/codecs/da7219.c b/sound/soc/codecs/da7219.c index eecb6d6c29cf..65f7e9807659 100644 --- a/sound/soc/codecs/da7219.c +++ b/sound/soc/codecs/da7219.c @@ -1482,6 +1482,8 @@ static struct da7219_pdata *da7219_fw_to_pdata(struct snd_soc_codec *codec) if (!pdata) return NULL; + pdata->wakeup_source = device_property_read_bool(dev, "wakeup-source"); + if (device_property_read_u32(dev, "dlg,micbias-lvl", &of_val32) >= 0) pdata->micbias_lvl = da7219_fw_micbias_lvl(dev, of_val32); else @@ -1524,20 +1526,21 @@ static int da7219_set_bias_level(struct snd_soc_codec *codec, break; case SND_SOC_BIAS_STANDBY: - if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) { + if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) /* Master bias */ snd_soc_update_bits(codec, DA7219_REFERENCES, DA7219_BIAS_EN_MASK, DA7219_BIAS_EN_MASK); - } else { + + if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_PREPARE) { /* Remove MCLK */ if (da7219->mclk) clk_disable_unprepare(da7219->mclk); } break; case SND_SOC_BIAS_OFF: - /* Only disable master bias if jack detection not active */ - if (!da7219->aad->jack) + /* Only disable master bias if we're not a wake-up source */ + if (!da7219->wakeup_source) snd_soc_update_bits(codec, DA7219_REFERENCES, DA7219_BIAS_EN_MASK, 0); @@ -1603,6 +1606,8 @@ static void da7219_handle_pdata(struct snd_soc_codec *codec) if (pdata) { u8 micbias_lvl = 0; + da7219->wakeup_source = pdata->wakeup_source; + /* Mic Bias voltages */ switch (pdata->micbias_lvl) { case DA7219_MICBIAS_1_6V: @@ -1737,11 +1742,11 @@ static int da7219_suspend(struct snd_soc_codec *codec) { struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec); - snd_soc_codec_force_bias_level(codec, SND_SOC_BIAS_OFF); + /* Suspend AAD if we're not a wake-up source */ + if (!da7219->wakeup_source) + da7219_aad_suspend(codec); - /* Put device into standby mode if jack detection disabled */ - if (!da7219->aad->jack) - snd_soc_write(codec, DA7219_SYSTEM_ACTIVE, 0); + snd_soc_codec_force_bias_level(codec, SND_SOC_BIAS_OFF); return 0; } @@ -1750,13 +1755,12 @@ static int da7219_resume(struct snd_soc_codec *codec) { struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec); - /* Put device into active mode if previously pushed to standby */ - if (!da7219->aad->jack) - snd_soc_write(codec, DA7219_SYSTEM_ACTIVE, - DA7219_SYSTEM_ACTIVE_MASK); - snd_soc_codec_force_bias_level(codec, SND_SOC_BIAS_STANDBY); + /* Resume AAD if previously suspended */ + if (!da7219->wakeup_source) + da7219_aad_resume(codec); + return 0; } #else diff --git a/sound/soc/codecs/da7219.h b/sound/soc/codecs/da7219.h index f1b3ad835270..66d3bad86739 100644 --- a/sound/soc/codecs/da7219.h +++ b/sound/soc/codecs/da7219.h @@ -803,6 +803,7 @@ struct da7219_priv { struct da7219_aad_priv *aad; struct da7219_pdata *pdata; + bool wakeup_source; struct regulator_bulk_data supplies[DA7219_NUM_SUPPLIES]; struct regmap *regmap; struct mutex lock; -- 2.9.3 ^ permalink raw reply related [flat|nested] 5+ messages in thread
end of thread, other threads:[~2016-09-26 16:43 UTC | newest] Thread overview: 5+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2016-09-26 13:29 [PATCH 0/2] ASoC: da7219: Codec soft reset and AAD improvements Adam Thomson 2016-09-26 13:29 ` [PATCH 1/2] ASoC: da7219: Reset codec gracefully, if still active Adam Thomson 2016-09-26 16:43 ` Applied "ASoC: da7219: Reset codec gracefully, if still active" to the asoc tree Mark Brown 2016-09-26 13:29 ` [PATCH 2/2] ASoC: da7219: Disable AAD if codec is not a wake-up source Adam Thomson 2016-09-26 16:43 ` Applied "ASoC: da7219: Disable AAD if codec is not a wake-up source" to the asoc tree Mark Brown
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