From f29db0892b2a9b2827f4a1afd3abebb82bcf843c Mon Sep 17 00:00:00 2001
From: Lucas Tanure <tanureal@opensource.cirrus.com>
Date: Wed, 13 Apr 2022 09:37:20 +0100
Subject: [PATCH] ALSA: hda: cs35l41: Mute the device before shutdown
Git-commit: f29db0892b2a9b2827f4a1afd3abebb82bcf843c
Patch-mainline: v5.19-rc1
References: bsc#1203699
Mute the device before shutdown to avoid pops and clicks for all types
of boost.
Signed-off-by: Lucas Tanure <tanureal@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220413083728.10730-9-tanureal@opensource.cirrus.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/pci/hda/cs35l41_hda.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/sound/pci/hda/cs35l41_hda.c b/sound/pci/hda/cs35l41_hda.c
index 46e920ec3000..0709d09f4e13 100644
--- a/sound/pci/hda/cs35l41_hda.c
+++ b/sound/pci/hda/cs35l41_hda.c
@@ -28,6 +28,11 @@ static const struct reg_sequence cs35l41_hda_config[] = {
{ CS35L41_PWR_CTRL2, 0x00000001 }, // AMP_EN = 1
};
+static const struct reg_sequence cs35l41_hda_mute[] = {
+ { CS35L41_AMP_GAIN_CTRL, 0x00000000 }, // AMP_GAIN_PCM 0.5 dB
+ { CS35L41_AMP_DIG_VOL_CTRL, 0x0000A678 }, // AMP_VOL_PCM Mute
+};
+
static const struct reg_sequence cs35l41_hda_start_bst[] = {
{ CS35L41_PWR_CTRL2, 0x00000021 }, // BST_EN = 10, AMP_EN = 1
{ CS35L41_PWR_CTRL1, 0x00000001, 3000}, // set GLOBAL_EN = 1
@@ -89,7 +94,6 @@ static const struct reg_sequence cs35l41_active_to_safe[] = {
{ 0x00000040, 0x00000055 },
{ 0x00000040, 0x000000AA },
{ 0x00007438, 0x00585941 },
- { CS35L41_AMP_DIG_VOL_CTRL, 0x0000A678 }, // AMP_VOL_PCM Mute
{ CS35L41_PWR_CTRL2, 0x00000000 }, // AMP_EN = 0
{ CS35L41_PWR_CTRL1, 0x00000000 },
{ 0x0000742C, 0x00000009, 2000 },
@@ -146,6 +150,7 @@ static void cs35l41_hda_playback_hook(struct device *dev, int action)
ret = regmap_multi_reg_write(reg, reg_seq->prepare, reg_seq->num_prepare);
break;
case HDA_GEN_PCM_ACT_CLEANUP:
+ regmap_multi_reg_write(reg, cs35l41_hda_mute, ARRAY_SIZE(cs35l41_hda_mute));
if (reg_seq->cleanup)
ret = regmap_multi_reg_write(reg, reg_seq->cleanup, reg_seq->num_cleanup);
break;
--
2.35.3