From: Richard Fitzgerald <rf@opensource.cirrus.com> To: <broonie@kernel.org> Cc: <alsa-devel@alsa-project.org>, <patches@opensource.cirrus.com>, <linux-kernel@vger.kernel.org>, Richard Fitzgerald <rf@opensource.cirrus.com> Subject: [PATCH 07/12] ASoC: cs42l42: Allow time for HP/ADC to power-up after enable Date: Tue, 10 Aug 2021 16:37:54 +0100 [thread overview] Message-ID: <20210810153759.24333-8-rf@opensource.cirrus.com> (raw) In-Reply-To: <20210810153759.24333-1-rf@opensource.cirrus.com> After enabling the HP or ADC by writing the corresponding PDN=0, it takes around 20 milliseconds for it to power up and the midrail supply to be stable. Add this wait into a DAPM widget callback. If HP and ADC are both powering up in a DAPM sequence, there's no need to do the wait twice. The widget will perform one wait in the POST_PMU if there was a PRE_PMU for one or both. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> --- sound/soc/codecs/cs42l42.c | 31 +++++++++++++++++++++++++++++-- sound/soc/codecs/cs42l42.h | 2 ++ 2 files changed, 31 insertions(+), 2 deletions(-) diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c index dd677055a3c1..0b63dba07b6d 100644 --- a/sound/soc/codecs/cs42l42.c +++ b/sound/soc/codecs/cs42l42.c @@ -456,10 +456,36 @@ static const struct snd_kcontrol_new cs42l42_snd_controls[] = { 0x3f, 1, mixer_tlv) }; +static int cs42l42_hp_adc_ev(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); + struct cs42l42_private *cs42l42 = snd_soc_component_get_drvdata(component); + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + cs42l42->hp_adc_up_pending = true; + break; + case SND_SOC_DAPM_POST_PMU: + /* Only need one delay if HP and ADC are both powering-up */ + if (cs42l42->hp_adc_up_pending) { + usleep_range(CS42L42_HP_ADC_EN_TIME_US, + CS42L42_HP_ADC_EN_TIME_US + 1000); + cs42l42->hp_adc_up_pending = false; + } + break; + default: + break; + } + + return 0; +} + static const struct snd_soc_dapm_widget cs42l42_dapm_widgets[] = { /* Playback Path */ SND_SOC_DAPM_OUTPUT("HP"), - SND_SOC_DAPM_DAC("DAC", NULL, CS42L42_PWR_CTL1, CS42L42_HP_PDN_SHIFT, 1), + SND_SOC_DAPM_DAC_E("DAC", NULL, CS42L42_PWR_CTL1, CS42L42_HP_PDN_SHIFT, 1, + cs42l42_hp_adc_ev, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU), SND_SOC_DAPM_MIXER("MIXER", CS42L42_PWR_CTL1, CS42L42_MIXER_PDN_SHIFT, 1, NULL, 0), SND_SOC_DAPM_AIF_IN("SDIN1", NULL, 0, SND_SOC_NOPM, 0, 0), SND_SOC_DAPM_AIF_IN("SDIN2", NULL, 1, SND_SOC_NOPM, 0, 0), @@ -469,7 +495,8 @@ static const struct snd_soc_dapm_widget cs42l42_dapm_widgets[] = { /* Capture Path */ SND_SOC_DAPM_INPUT("HS"), - SND_SOC_DAPM_ADC("ADC", NULL, CS42L42_PWR_CTL1, CS42L42_ADC_PDN_SHIFT, 1), + SND_SOC_DAPM_ADC_E("ADC", NULL, CS42L42_PWR_CTL1, CS42L42_ADC_PDN_SHIFT, 1, + cs42l42_hp_adc_ev, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU), SND_SOC_DAPM_AIF_OUT("SDOUT1", NULL, 0, CS42L42_ASP_TX_CH_EN, CS42L42_ASP_TX0_CH1_SHIFT, 0), SND_SOC_DAPM_AIF_OUT("SDOUT2", NULL, 1, CS42L42_ASP_TX_CH_EN, CS42L42_ASP_TX0_CH2_SHIFT, 0), diff --git a/sound/soc/codecs/cs42l42.h b/sound/soc/codecs/cs42l42.h index addb6560c649..d13749e9d8c5 100644 --- a/sound/soc/codecs/cs42l42.h +++ b/sound/soc/codecs/cs42l42.h @@ -762,6 +762,7 @@ #define CS42L42_CLOCK_SWITCH_DELAY_US 150 #define CS42L42_PLL_LOCK_POLL_US 250 #define CS42L42_PLL_LOCK_TIMEOUT_US 1250 +#define CS42L42_HP_ADC_EN_TIME_US 20000 static const char *const cs42l42_supply_names[CS42L42_NUM_SUPPLIES] = { "VA", @@ -795,6 +796,7 @@ struct cs42l42_private { u8 hs_bias_ramp_time; u8 hs_bias_sense_en; u8 stream_use; + bool hp_adc_up_pending; }; #endif /* __CS42L42_H__ */ -- 2.11.0
WARNING: multiple messages have this Message-ID (diff)
From: Richard Fitzgerald <rf@opensource.cirrus.com> To: <broonie@kernel.org> Cc: patches@opensource.cirrus.com, alsa-devel@alsa-project.org, Richard Fitzgerald <rf@opensource.cirrus.com>, linux-kernel@vger.kernel.org Subject: [PATCH 07/12] ASoC: cs42l42: Allow time for HP/ADC to power-up after enable Date: Tue, 10 Aug 2021 16:37:54 +0100 [thread overview] Message-ID: <20210810153759.24333-8-rf@opensource.cirrus.com> (raw) In-Reply-To: <20210810153759.24333-1-rf@opensource.cirrus.com> After enabling the HP or ADC by writing the corresponding PDN=0, it takes around 20 milliseconds for it to power up and the midrail supply to be stable. Add this wait into a DAPM widget callback. If HP and ADC are both powering up in a DAPM sequence, there's no need to do the wait twice. The widget will perform one wait in the POST_PMU if there was a PRE_PMU for one or both. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> --- sound/soc/codecs/cs42l42.c | 31 +++++++++++++++++++++++++++++-- sound/soc/codecs/cs42l42.h | 2 ++ 2 files changed, 31 insertions(+), 2 deletions(-) diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c index dd677055a3c1..0b63dba07b6d 100644 --- a/sound/soc/codecs/cs42l42.c +++ b/sound/soc/codecs/cs42l42.c @@ -456,10 +456,36 @@ static const struct snd_kcontrol_new cs42l42_snd_controls[] = { 0x3f, 1, mixer_tlv) }; +static int cs42l42_hp_adc_ev(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); + struct cs42l42_private *cs42l42 = snd_soc_component_get_drvdata(component); + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + cs42l42->hp_adc_up_pending = true; + break; + case SND_SOC_DAPM_POST_PMU: + /* Only need one delay if HP and ADC are both powering-up */ + if (cs42l42->hp_adc_up_pending) { + usleep_range(CS42L42_HP_ADC_EN_TIME_US, + CS42L42_HP_ADC_EN_TIME_US + 1000); + cs42l42->hp_adc_up_pending = false; + } + break; + default: + break; + } + + return 0; +} + static const struct snd_soc_dapm_widget cs42l42_dapm_widgets[] = { /* Playback Path */ SND_SOC_DAPM_OUTPUT("HP"), - SND_SOC_DAPM_DAC("DAC", NULL, CS42L42_PWR_CTL1, CS42L42_HP_PDN_SHIFT, 1), + SND_SOC_DAPM_DAC_E("DAC", NULL, CS42L42_PWR_CTL1, CS42L42_HP_PDN_SHIFT, 1, + cs42l42_hp_adc_ev, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU), SND_SOC_DAPM_MIXER("MIXER", CS42L42_PWR_CTL1, CS42L42_MIXER_PDN_SHIFT, 1, NULL, 0), SND_SOC_DAPM_AIF_IN("SDIN1", NULL, 0, SND_SOC_NOPM, 0, 0), SND_SOC_DAPM_AIF_IN("SDIN2", NULL, 1, SND_SOC_NOPM, 0, 0), @@ -469,7 +495,8 @@ static const struct snd_soc_dapm_widget cs42l42_dapm_widgets[] = { /* Capture Path */ SND_SOC_DAPM_INPUT("HS"), - SND_SOC_DAPM_ADC("ADC", NULL, CS42L42_PWR_CTL1, CS42L42_ADC_PDN_SHIFT, 1), + SND_SOC_DAPM_ADC_E("ADC", NULL, CS42L42_PWR_CTL1, CS42L42_ADC_PDN_SHIFT, 1, + cs42l42_hp_adc_ev, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU), SND_SOC_DAPM_AIF_OUT("SDOUT1", NULL, 0, CS42L42_ASP_TX_CH_EN, CS42L42_ASP_TX0_CH1_SHIFT, 0), SND_SOC_DAPM_AIF_OUT("SDOUT2", NULL, 1, CS42L42_ASP_TX_CH_EN, CS42L42_ASP_TX0_CH2_SHIFT, 0), diff --git a/sound/soc/codecs/cs42l42.h b/sound/soc/codecs/cs42l42.h index addb6560c649..d13749e9d8c5 100644 --- a/sound/soc/codecs/cs42l42.h +++ b/sound/soc/codecs/cs42l42.h @@ -762,6 +762,7 @@ #define CS42L42_CLOCK_SWITCH_DELAY_US 150 #define CS42L42_PLL_LOCK_POLL_US 250 #define CS42L42_PLL_LOCK_TIMEOUT_US 1250 +#define CS42L42_HP_ADC_EN_TIME_US 20000 static const char *const cs42l42_supply_names[CS42L42_NUM_SUPPLIES] = { "VA", @@ -795,6 +796,7 @@ struct cs42l42_private { u8 hs_bias_ramp_time; u8 hs_bias_sense_en; u8 stream_use; + bool hp_adc_up_pending; }; #endif /* __CS42L42_H__ */ -- 2.11.0
next prev parent reply other threads:[~2021-08-10 15:40 UTC|newest] Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-08-10 15:37 [PATCH 00/12] ASoC: cs42l42: Series of bugfixes and improvements Richard Fitzgerald 2021-08-10 15:37 ` Richard Fitzgerald 2021-08-10 15:37 ` [PATCH 01/12] ASoC: cs42l42: Use PLL for SCLK > 12.188MHz Richard Fitzgerald 2021-08-10 15:37 ` Richard Fitzgerald 2021-08-10 15:37 ` [PATCH 02/12] ASoC: cs42l42: Don't claim to support 192k Richard Fitzgerald 2021-08-10 15:37 ` Richard Fitzgerald 2021-08-10 15:37 ` [PATCH 03/12] ASoC: cs42l42: Always configure both ASP TX channels Richard Fitzgerald 2021-08-10 15:37 ` Richard Fitzgerald 2021-08-10 15:37 ` [PATCH 04/12] ASoC: cs42l42: Don't reconfigure the PLL while it is running Richard Fitzgerald 2021-08-10 15:37 ` Richard Fitzgerald 2021-08-10 15:49 ` Mark Brown 2021-08-10 15:49 ` Mark Brown 2021-08-10 16:27 ` Richard Fitzgerald 2021-08-10 16:27 ` Richard Fitzgerald 2021-08-11 11:56 ` Mark Brown 2021-08-11 11:56 ` Mark Brown 2021-08-11 12:21 ` Richard Fitzgerald 2021-08-11 12:21 ` Richard Fitzgerald 2021-08-11 14:41 ` Mark Brown 2021-08-11 14:41 ` Mark Brown 2021-08-11 10:56 ` Richard Fitzgerald 2021-08-11 10:56 ` Richard Fitzgerald 2021-08-10 15:37 ` [PATCH 05/12] ASoC: cs42l42: Set correct SRC MCLK Richard Fitzgerald 2021-08-10 15:37 ` Richard Fitzgerald 2021-08-10 15:37 ` [PATCH 06/12] ASoC: cs42l42: Mark OSC_SWITCH_STATUS register volatile Richard Fitzgerald 2021-08-10 15:37 ` Richard Fitzgerald 2021-08-10 15:37 ` Richard Fitzgerald [this message] 2021-08-10 15:37 ` [PATCH 07/12] ASoC: cs42l42: Allow time for HP/ADC to power-up after enable Richard Fitzgerald 2021-08-10 15:37 ` [PATCH 08/12] ASoC: cs42l42: Prevent NULL pointer deref in interrupt handler Richard Fitzgerald 2021-08-10 15:37 ` Richard Fitzgerald 2021-08-10 15:37 ` [PATCH 09/12] ASoC: cs42l42: Remove runtime_suspend/runtime_resume callbacks Richard Fitzgerald 2021-08-10 15:37 ` Richard Fitzgerald 2021-08-10 15:37 ` [PATCH 10/12] ASoC: cs42l42: Remove redundant pll_divout member Richard Fitzgerald 2021-08-10 15:37 ` Richard Fitzgerald 2021-08-10 15:37 ` [PATCH 11/12] ASoC: cs42l42: Add HP Volume Scale control Richard Fitzgerald 2021-08-10 15:37 ` Richard Fitzgerald 2021-08-10 15:37 ` [PATCH 12/12] ASoC: cs42l42: Add control for audio slow-start switch Richard Fitzgerald 2021-08-10 15:37 ` Richard Fitzgerald
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