ALSA: hda: cs35l41: Remove cs35l41_hda_reg_sequence struct

Remove cs35l41_hd_reg_sequence as it adds a layer of flexibility not needed.
As cs35l41_hda_(start/stop)_bst is a single register, it can be replaced by
regmap_update_bits with usleep_range to wait for the same 3000us that
reg_sequence had.
Signed-off-by: Lucas Tanure <tanureal@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220413083728.10730-12-tanureal@opensource.cirrus.comSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/hda/cs35l41_hda.c

@@ -32,14 +32,6 @@ static const struct reg_sequence cs35l41_hda_mute[] = {
 	{ CS35L41_AMP_DIG_VOL_CTRL,	0x0000A678 }, // AMP_VOL_PCM Mute
 };
 
-static const struct reg_sequence cs35l41_hda_start_bst[] = {
-	{ CS35L41_PWR_CTRL1,		0x00000001, 3000}, // set GLOBAL_EN = 1
-};
-
-static const struct reg_sequence cs35l41_hda_stop_bst[] = {
-	{ CS35L41_PWR_CTRL1,		0x00000000, 3000}, // set GLOBAL_EN = 0
-};
-
 // only on amps where GPIO1 is used to control ext. VSPK switch
 static const struct reg_sequence cs35l41_start_ext_vspk[] = {
 	{ 0x00000040,			0x00000055 },
@@ -109,31 +101,44 @@ static const struct reg_sequence cs35l41_reset_to_safe[] = {
 	{ 0x00000040,			0x00000033 },
 };
 
-static const struct cs35l41_hda_reg_sequence cs35l41_hda_reg_seq_no_bst = {
-	.prepare	= cs35l41_safe_to_active,
-	.num_prepare	= ARRAY_SIZE(cs35l41_safe_to_active),
-	.cleanup	= cs35l41_active_to_safe,
-	.num_cleanup	= ARRAY_SIZE(cs35l41_active_to_safe),
-};
+static int cs35l41_hda_global_enable(struct cs35l41_hda *cs35l41, int enable)
+{
+	int ret;
 
-static const struct cs35l41_hda_reg_sequence cs35l41_hda_reg_seq_ext_bst = {
-	.prepare	= cs35l41_start_ext_vspk,
-	.num_prepare	= ARRAY_SIZE(cs35l41_start_ext_vspk),
-	.cleanup	= cs35l41_stop_ext_vspk,
-	.num_cleanup	= ARRAY_SIZE(cs35l41_stop_ext_vspk),
-};
+	switch (cs35l41->hw_cfg.bst_type) {
+	case CS35L41_INT_BOOST:
+		ret = regmap_update_bits(cs35l41->regmap, CS35L41_PWR_CTRL1,
+					 CS35L41_GLOBAL_EN_MASK,
+					 enable << CS35L41_GLOBAL_EN_SHIFT);
+		usleep_range(3000, 3100);
+		break;
+	case CS35L41_EXT_BOOST:
+		if (enable)
+			ret = regmap_multi_reg_write(cs35l41->regmap, cs35l41_start_ext_vspk,
+						     ARRAY_SIZE(cs35l41_start_ext_vspk));
+		else
+			ret = regmap_multi_reg_write(cs35l41->regmap, cs35l41_stop_ext_vspk,
+						     ARRAY_SIZE(cs35l41_stop_ext_vspk));
+		break;
+	case CS35L41_EXT_BOOST_NO_VSPK_SWITCH:
+		if (enable)
+			ret = regmap_multi_reg_write(cs35l41->regmap, cs35l41_safe_to_active,
+						     ARRAY_SIZE(cs35l41_safe_to_active));
+		else
+			ret = regmap_multi_reg_write(cs35l41->regmap, cs35l41_active_to_safe,
+						     ARRAY_SIZE(cs35l41_active_to_safe));
+		break;
+	default:
+		ret = -EINVAL;
+		break;
+	}
 
-static const struct cs35l41_hda_reg_sequence cs35l41_hda_reg_seq_int_bst = {
-	.prepare	= cs35l41_hda_start_bst,
-	.num_prepare	= ARRAY_SIZE(cs35l41_hda_start_bst),
-	.cleanup	= cs35l41_hda_stop_bst,
-	.num_cleanup	= ARRAY_SIZE(cs35l41_hda_stop_bst),
+	return ret;
 };
 
 static void cs35l41_hda_playback_hook(struct device *dev, int action)
 {
 	struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev);
-	const struct cs35l41_hda_reg_sequence *reg_seq = cs35l41->reg_seq;
 	struct regmap *reg = cs35l41->regmap;
 	int ret = 0;
 
@@ -145,19 +150,15 @@ static void cs35l41_hda_playback_hook(struct device *dev, int action)
 				   CS35L41_AMP_EN_MASK, 1 << CS35L41_AMP_EN_SHIFT);
 		break;
 	case HDA_GEN_PCM_ACT_PREPARE:
-		if (reg_seq->prepare)
-			ret = regmap_multi_reg_write(reg, reg_seq->prepare, reg_seq->num_prepare);
+		ret = cs35l41_hda_global_enable(cs35l41, 1);
 		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);
+		ret = cs35l41_hda_global_enable(cs35l41, 0);
 		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;
 	default:
 		ret = -EINVAL;
@@ -221,7 +222,6 @@ static int cs35l41_hda_apply_properties(struct cs35l41_hda *cs35l41)
 
 	switch (hw_cfg->bst_type) {
 	case CS35L41_INT_BOOST:
-		cs35l41->reg_seq = &cs35l41_hda_reg_seq_int_bst;
 		ret = cs35l41_boost_config(cs35l41->dev, cs35l41->regmap,
 					   hw_cfg->bst_ind, hw_cfg->bst_cap, hw_cfg->bst_ipk);
 		if (ret)
@@ -229,10 +229,6 @@ static int cs35l41_hda_apply_properties(struct cs35l41_hda *cs35l41)
 		break;
 	case CS35L41_EXT_BOOST:
 	case CS35L41_EXT_BOOST_NO_VSPK_SWITCH:
-		if (hw_cfg->bst_type == CS35L41_EXT_BOOST)
-			cs35l41->reg_seq = &cs35l41_hda_reg_seq_ext_bst;
-		else
-			cs35l41->reg_seq = &cs35l41_hda_reg_seq_no_bst;
 		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,
@@ -511,15 +507,6 @@ int cs35l41_hda_probe(struct device *dev, const char *device_name, int id, int i
 	if (ret)
 		goto err;
 
-	if (cs35l41->reg_seq->probe) {
-		ret = regmap_multi_reg_write(cs35l41->regmap, cs35l41->reg_seq->probe,
-					     cs35l41->reg_seq->num_probe);
-		if (ret) {
-			dev_err(cs35l41->dev, "Fail to apply probe reg patch: %d\n", ret);
-			goto err;
-		}
-	}
-
 	ret = component_add(cs35l41->dev, &cs35l41_hda_comp_ops);
 	if (ret) {
 		dev_err(cs35l41->dev, "Register component failed: %d\n", ret);

sound/pci/hda/cs35l41_hda.h

@@ -27,24 +27,10 @@ enum cs35l41_hda_gpio_function {
 	CS35l41_SYNC,
 };
 
-struct cs35l41_hda_reg_sequence {
-	const struct reg_sequence *probe;
-	unsigned int num_probe;
-	const struct reg_sequence *open;
-	unsigned int num_open;
-	const struct reg_sequence *prepare;
-	unsigned int num_prepare;
-	const struct reg_sequence *cleanup;
-	unsigned int num_cleanup;
-	const struct reg_sequence *close;
-	unsigned int num_close;
-};
-
 struct cs35l41_hda {
 	struct device *dev;
 	struct regmap *regmap;
 	struct gpio_desc *reset_gpio;
-	const struct cs35l41_hda_reg_sequence *reg_seq;
 	struct cs35l41_hw_cfg hw_cfg;
 
 	int irq;