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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 11/12] ASoC: cs42l42: Add HP Volume Scale control
Date: Tue, 10 Aug 2021 16:37:58 +0100	[thread overview]
Message-ID: <20210810153759.24333-12-rf@opensource.cirrus.com> (raw)
In-Reply-To: <20210810153759.24333-1-rf@opensource.cirrus.com>

cs42l42 has a configurable scaling of the maximum volume. Add an
ALSA control for this. Note that the datasheet name is "full scale
volume" but this conflicts with ALSA naming convention so the control
is named "HP Volume Scale".

Before this change the FULL_SCALE_VOLUME was set based on the value in
RLA_STAT, but as there isn't any load detection result this always set
the scaling to -6dB instead of the default 0dB.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
---
 sound/soc/codecs/cs42l42.c | 25 ++++++++++++-------------
 1 file changed, 12 insertions(+), 13 deletions(-)

diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c
index 5c1a587af89e..b2632fdef9a0 100644
--- a/sound/soc/codecs/cs42l42.c
+++ b/sound/soc/codecs/cs42l42.c
@@ -425,6 +425,14 @@ static SOC_ENUM_SINGLE_DECL(cs42l42_wnf3_freq_enum, CS42L42_ADC_WNF_HPF_CTL,
 			    CS42L42_ADC_WNF_CF_SHIFT,
 			    cs42l42_wnf3_freq_text);
 
+static const char * const cs42l42_full_scale_vol_text[] = {
+	"0dB", "-6dB"
+};
+
+static SOC_ENUM_SINGLE_DECL(cs42l42_full_scale_vol_enum, CS42L42_HP_CTL,
+			    CS42L42_HP_FULL_SCALE_VOL_SHIFT,
+			    cs42l42_full_scale_vol_text);
+
 static const struct snd_kcontrol_new cs42l42_snd_controls[] = {
 	/* ADC Volume and Filter Controls */
 	SOC_SINGLE("ADC Notch Switch", CS42L42_ADC_CTL,
@@ -450,6 +458,7 @@ static const struct snd_kcontrol_new cs42l42_snd_controls[] = {
 				CS42L42_DACB_INV_SHIFT, true, false),
 	SOC_SINGLE("DAC HPF Switch", CS42L42_DAC_CTL2,
 				CS42L42_DAC_HPF_EN_SHIFT, true, false),
+	SOC_ENUM("HP Volume Scale", cs42l42_full_scale_vol_enum),
 	SOC_DOUBLE_R_TLV("Mixer Volume", CS42L42_MIXER_CHA_VOL,
 			 CS42L42_MIXER_CHB_VOL, CS42L42_MIXER_CH_VOL_SHIFT,
 				0x3f, 1, mixer_tlv)
@@ -951,7 +960,6 @@ static int cs42l42_mute_stream(struct snd_soc_dai *dai, int mute, int stream)
 	struct snd_soc_component *component = dai->component;
 	struct cs42l42_private *cs42l42 = snd_soc_component_get_drvdata(component);
 	unsigned int regval;
-	u8 fullScaleVol;
 	int ret;
 
 	if (mute) {
@@ -1023,20 +1031,11 @@ static int cs42l42_mute_stream(struct snd_soc_dai *dai, int mute, int stream)
 		cs42l42->stream_use |= 1 << stream;
 
 		if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
-			/* Read the headphone load */
-			regval = snd_soc_component_read(component, CS42L42_LOAD_DET_RCSTAT);
-			if (((regval & CS42L42_RLA_STAT_MASK) >> CS42L42_RLA_STAT_SHIFT) ==
-			    CS42L42_RLA_STAT_15_OHM) {
-				fullScaleVol = CS42L42_HP_FULL_SCALE_VOL_MASK;
-			} else {
-				fullScaleVol = 0;
-			}
-
-			/* Un-mute the headphone, set the full scale volume flag */
+			/* Un-mute the headphone */
 			snd_soc_component_update_bits(component, CS42L42_HP_CTL,
 						      CS42L42_HP_ANA_AMUTE_MASK |
-						      CS42L42_HP_ANA_BMUTE_MASK |
-						      CS42L42_HP_FULL_SCALE_VOL_MASK, fullScaleVol);
+						      CS42L42_HP_ANA_BMUTE_MASK,
+						      0);
 		}
 	}
 
-- 
2.11.0


  parent reply	other threads:[~2021-08-10 15:40 UTC|newest]

Thread overview: 19+ 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 ` [PATCH 01/12] ASoC: cs42l42: Use PLL for SCLK > 12.188MHz 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 ` [PATCH 03/12] ASoC: cs42l42: Always configure both ASP TX channels 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 15:49   ` Mark Brown
2021-08-10 16:27     ` Richard Fitzgerald
2021-08-11 11:56       ` Mark Brown
2021-08-11 12:21         ` Richard Fitzgerald
2021-08-11 14:41           ` Mark Brown
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 ` [PATCH 06/12] ASoC: cs42l42: Mark OSC_SWITCH_STATUS register volatile Richard Fitzgerald
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 ` [PATCH 09/12] ASoC: cs42l42: Remove runtime_suspend/runtime_resume callbacks 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 [this message]
2021-08-10 15:37 ` [PATCH 12/12] ASoC: cs42l42: Add control for audio slow-start switch Richard Fitzgerald

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