linux-kernel - [PATCH v7 10/16] ALSA: hda: cs35l41: Move boost config to initialization code

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Date:   Wed, 13 Apr 2022 09:37:22 +0100
From:   Lucas Tanure <tanureal@...nsource.cirrus.com>
To:     Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>
CC:     <alsa-devel@...a-project.org>, <patches@...nsource.cirrus.com>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Lucas Tanure <tanureal@...nsource.cirrus.com>
Subject: [PATCH v7 10/16] ALSA: hda: cs35l41: Move boost config to initialization code

Having CS35L41_PWR_CTRL2 on cs35l41_hda_config overwrites the boost
configuration for internal boost.
So move it to the initialization part and use regmap_update_bits to
only change the correct bits.

Signed-off-by: Lucas Tanure <tanureal@...nsource.cirrus.com>
---
 include/sound/cs35l41.h     |  1 +
 sound/pci/hda/cs35l41_hda.c | 13 ++++++++-----
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/include/sound/cs35l41.h b/include/sound/cs35l41.h
index 64d98cbd5c0e..7d892c97b1e8 100644
--- a/include/sound/cs35l41.h
+++ b/include/sound/cs35l41.h
@@ -661,6 +661,7 @@
 #define CS35L41_GLOBAL_EN_SHIFT		0
 #define CS35L41_BST_EN_MASK		0x0030
 #define CS35L41_BST_EN_SHIFT		4
+#define CS35L41_BST_DIS_FET_OFF		0x00
 #define CS35L41_BST_EN_DEFAULT		0x2
 #define CS35L41_AMP_EN_SHIFT		0
 #define CS35L41_AMP_EN_MASK		1
diff --git a/sound/pci/hda/cs35l41_hda.c b/sound/pci/hda/cs35l41_hda.c
index 0709d09f4e13..6e82ab9517f0 100644
--- a/sound/pci/hda/cs35l41_hda.c
+++ b/sound/pci/hda/cs35l41_hda.c
@@ -25,7 +25,6 @@ static const struct reg_sequence cs35l41_hda_config[] = {
 	{ CS35L41_DAC_PCM1_SRC,		0x00000008 }, // DACPCM1_SRC = ASPRX1
 	{ CS35L41_AMP_DIG_VOL_CTRL,	0x00000000 }, // AMP_VOL_PCM  0.0 dB
 	{ CS35L41_AMP_GAIN_CTRL,	0x00000084 }, // AMP_GAIN_PCM 4.5 dB
-	{ CS35L41_PWR_CTRL2,		0x00000001 }, // AMP_EN = 1
 };
 
 static const struct reg_sequence cs35l41_hda_mute[] = {
@@ -34,7 +33,6 @@ static const struct reg_sequence cs35l41_hda_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
 };
 
@@ -94,7 +92,6 @@ static const struct reg_sequence cs35l41_active_to_safe[] = {
 	{ 0x00000040,			0x00000055 },
 	{ 0x00000040,			0x000000AA },
 	{ 0x00007438,			0x00585941 },
-	{ CS35L41_PWR_CTRL2,		0x00000000 }, // AMP_EN = 0
 	{ CS35L41_PWR_CTRL1,		0x00000000 },
 	{ 0x0000742C,			0x00000009, 2000 },
 	{ 0x00007438,			0x00580941 },
@@ -144,6 +141,8 @@ static void cs35l41_hda_playback_hook(struct device *dev, int action)
 	case HDA_GEN_PCM_ACT_OPEN:
 		ret = regmap_multi_reg_write(reg, cs35l41_hda_config,
 					     ARRAY_SIZE(cs35l41_hda_config));
+		regmap_update_bits(reg, CS35L41_PWR_CTRL2,
+				   CS35L41_AMP_EN_MASK, 1 << CS35L41_AMP_EN_SHIFT);
 		break;
 	case HDA_GEN_PCM_ACT_PREPARE:
 		if (reg_seq->prepare)
@@ -155,6 +154,8 @@ static void cs35l41_hda_playback_hook(struct device *dev, int action)
 			ret = regmap_multi_reg_write(reg, reg_seq->cleanup, reg_seq->num_cleanup);
 		break;
 	case HDA_GEN_PCM_ACT_CLOSE:
+		regmap_update_bits(reg, CS35L41_PWR_CTRL2,
+				   CS35L41_AMP_EN_MASK, 0 << CS35L41_AMP_EN_SHIFT);
 		if (reg_seq->close)
 			ret = regmap_multi_reg_write(reg, reg_seq->close, reg_seq->num_close);
 		break;
@@ -232,8 +233,10 @@ static int cs35l41_hda_apply_properties(struct cs35l41_hda *cs35l41)
 			cs35l41->reg_seq = &cs35l41_hda_reg_seq_ext_bst;
 		else
 			cs35l41->reg_seq = &cs35l41_hda_reg_seq_no_bst;
-		ret = regmap_multi_reg_write(cs35l41->regmap, cs35l41_reset_to_safe,
-					     ARRAY_SIZE(cs35l41_reset_to_safe));
+		regmap_multi_reg_write(cs35l41->regmap, cs35l41_reset_to_safe,
+				       ARRAY_SIZE(cs35l41_reset_to_safe));
+		ret = regmap_update_bits(cs35l41->regmap, CS35L41_PWR_CTRL2, CS35L41_BST_EN_MASK,
+					  CS35L41_BST_DIS_FET_OFF << CS35L41_BST_EN_SHIFT);
 		if (ret)
 			return ret;
 		break;
-- 
2.35.2