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[v2,11/11] ALSA: hda: cs35l41: Ensure amp is only unmuted during playback

Message ID 20230721151816.2080453-12-sbinding@opensource.cirrus.com (mailing list archive)
State New, archived
Headers show
Series Fix support for System Suspend for CS35L41 HDA | expand

Commit Message

Stefan Binding July 21, 2023, 3:18 p.m. UTC 
Currently we only mute after playback has finished, and unmute
prior to setting global enable. To prevent any possible pops
and clicks, mute at probe, and then only unmute after global
enable is set.

Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com>
---
 sound/pci/hda/cs35l41_hda.c | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/sound/pci/hda/cs35l41_hda.c b/sound/pci/hda/cs35l41_hda.c
index 175378cdf9dfa..98feb5ccd5866 100644
--- a/sound/pci/hda/cs35l41_hda.c
+++ b/sound/pci/hda/cs35l41_hda.c
@@ -58,8 +58,6 @@  static const struct reg_sequence cs35l41_hda_config[] = {
 	{ CS35L41_DSP1_RX3_SRC,         0x00000018 }, // DSP1RX3 SRC = VMON
 	{ CS35L41_DSP1_RX4_SRC,         0x00000019 }, // DSP1RX4 SRC = IMON
 	{ CS35L41_DSP1_RX5_SRC,         0x00000020 }, // DSP1RX5 SRC = ERRVOL
-	{ CS35L41_AMP_DIG_VOL_CTRL,	0x00008000 }, // AMP_HPF_PCM_EN = 1, AMP_VOL_PCM  0.0 dB
-	{ CS35L41_AMP_GAIN_CTRL,	0x00000084 }, // AMP_GAIN_PCM 4.5 dB
 };
 
 static const struct reg_sequence cs35l41_hda_config_dsp[] = {
@@ -82,6 +80,14 @@  static const struct reg_sequence cs35l41_hda_config_dsp[] = {
 	{ CS35L41_DSP1_RX3_SRC,         0x00000018 }, // DSP1RX3 SRC = VMON
 	{ CS35L41_DSP1_RX4_SRC,         0x00000019 }, // DSP1RX4 SRC = IMON
 	{ CS35L41_DSP1_RX5_SRC,         0x00000029 }, // DSP1RX5 SRC = VBSTMON
+};
+
+static const struct reg_sequence cs35l41_hda_unmute[] = {
+	{ CS35L41_AMP_DIG_VOL_CTRL,	0x00008000 }, // AMP_HPF_PCM_EN = 1, AMP_VOL_PCM  0.0 dB
+	{ CS35L41_AMP_GAIN_CTRL,	0x00000084 }, // AMP_GAIN_PCM 4.5 dB
+};
+
+static const struct reg_sequence cs35l41_hda_unmute_dsp[] = {
 	{ CS35L41_AMP_DIG_VOL_CTRL,	0x00008000 }, // AMP_HPF_PCM_EN = 1, AMP_VOL_PCM  0.0 dB
 	{ CS35L41_AMP_GAIN_CTRL,	0x00000233 }, // AMP_GAIN_PCM = 17.5dB AMP_GAIN_PDM = 19.5dB
 };
@@ -522,6 +528,13 @@  static void cs35l41_hda_play_done(struct device *dev)
 
 	cs35l41_global_enable(dev, reg, cs35l41->hw_cfg.bst_type, 1, NULL,
 			      cs35l41->firmware_running);
+	if (cs35l41->firmware_running) {
+		regmap_multi_reg_write(reg, cs35l41_hda_unmute_dsp,
+				       ARRAY_SIZE(cs35l41_hda_unmute_dsp));
+	} else {
+		regmap_multi_reg_write(reg, cs35l41_hda_unmute,
+				       ARRAY_SIZE(cs35l41_hda_unmute));
+	}
 }
 
 static void cs35l41_hda_pause_start(struct device *dev)
@@ -1616,6 +1629,11 @@  int cs35l41_hda_probe(struct device *dev, const char *device_name, int id, int i
 	if (ret)
 		goto err;
 
+	ret = regmap_multi_reg_write(cs35l41->regmap, cs35l41_hda_mute,
+				     ARRAY_SIZE(cs35l41_hda_mute));
+	if (ret)
+		goto err;
+
 	INIT_WORK(&cs35l41->fw_load_work, cs35l41_fw_load_work);
 	mutex_init(&cs35l41->fw_mutex);