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From 6f1a7b41a626a567fcfe915e9dbe3aea34b6c3ec Mon Sep 17 00:00:00 2001
From: Stefan Binding <sbinding@opensource.cirrus.com>
Date: Fri, 21 Jul 2023 16:18:16 +0100
Subject: [PATCH 11/11] ALSA: hda: cs35l41: Ensure amp is only unmuted during
playback
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 --git a/sound/pci/hda/cs35l41_hda.c b/sound/pci/hda/cs35l41_hda.c
index 175378cdf9df..98feb5ccd586 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);
--
2.41.0
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