ASoC: cs35l41: Create shared function for setting channels

ASoC and HDA will use the same register to set channels
for the device

Signed-off-by: Lucas Tanure <tanureal@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20211217115708.882525-6-tanureal@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>

include/sound/cs35l41.h

@@ -764,5 +764,8 @@ extern struct regmap_config cs35l41_regmap_spi;
 
 int cs35l41_otp_unpack(struct device *dev, struct regmap *regmap);
 int cs35l41_register_errata_patch(struct device *dev, struct regmap *reg, unsigned int reg_revid);
+int cs35l41_set_channels(struct device *dev, struct regmap *reg,
+			 unsigned int tx_num, unsigned int *tx_slot,
+			 unsigned int rx_num, unsigned int *rx_slot);
 
 #endif /* __CS35L41_H */

sound/soc/codecs/cs35l41-lib.c

@@ -934,6 +934,38 @@ int cs35l41_register_errata_patch(struct device *dev, struct regmap *reg, unsign
 }
 EXPORT_SYMBOL_GPL(cs35l41_register_errata_patch);
 
+int cs35l41_set_channels(struct device *dev, struct regmap *reg,
+			 unsigned int tx_num, unsigned int *tx_slot,
+			 unsigned int rx_num, unsigned int *rx_slot)
+{
+	unsigned int val, mask;
+	int i;
+
+	if (tx_num > 4 || rx_num > 2)
+		return -EINVAL;
+
+	val = 0;
+	mask = 0;
+	for (i = 0; i < rx_num; i++) {
+		dev_dbg(dev, "rx slot %d position = %d\n", i, rx_slot[i]);
+		val |= rx_slot[i] << (i * 8);
+		mask |= 0x3F << (i * 8);
+	}
+	regmap_update_bits(reg, CS35L41_SP_FRAME_RX_SLOT, mask, val);
+
+	val = 0;
+	mask = 0;
+	for (i = 0; i < tx_num; i++) {
+		dev_dbg(dev, "tx slot %d position = %d\n", i, tx_slot[i]);
+		val |= tx_slot[i] << (i * 8);
+		mask |= 0x3F << (i * 8);
+	}
+	regmap_update_bits(reg, CS35L41_SP_FRAME_TX_SLOT, mask, val);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(cs35l41_set_channels);
+
 MODULE_DESCRIPTION("CS35L41 library");
 MODULE_AUTHOR("David Rhodes, Cirrus Logic Inc, <david.rhodes@cirrus.com>");
 MODULE_AUTHOR("Lucas Tanure, Cirrus Logic Inc, <tanureal@opensource.cirrus.com>");

sound/soc/codecs/cs35l41.c

@@ -751,36 +751,12 @@ static const struct cs_dsp_region cs35l41_dsp1_regions[] = {
 	{. type = WMFW_ADSP2_YM,	.base = CS35L41_DSP1_YMEM_UNPACK24_0},
 };
 
-static int cs35l41_set_channel_map(struct snd_soc_dai *dai, unsigned int tx_num,
-				   unsigned int *tx_slot, unsigned int rx_num,
-				   unsigned int *rx_slot)
+static int cs35l41_set_channel_map(struct snd_soc_dai *dai, unsigned int tx_n,
+				   unsigned int *tx_slot, unsigned int rx_n, unsigned int *rx_slot)
 {
 	struct cs35l41_private *cs35l41 = snd_soc_component_get_drvdata(dai->component);
-	unsigned int val, mask;
-	int i;
 
-	if (tx_num > 4 || rx_num > 2)
-		return -EINVAL;
-
-	val = 0;
-	mask = 0;
-	for (i = 0; i < rx_num; i++) {
-		dev_dbg(cs35l41->dev, "rx slot %d position = %d\n", i, rx_slot[i]);
-		val |= rx_slot[i] << (i * 8);
-		mask |= 0x3F << (i * 8);
-	}
-	regmap_update_bits(cs35l41->regmap, CS35L41_SP_FRAME_RX_SLOT, mask, val);
-
-	val = 0;
-	mask = 0;
-	for (i = 0; i < tx_num; i++) {
-		dev_dbg(cs35l41->dev, "tx slot %d position = %d\n", i, tx_slot[i]);
-		val |= tx_slot[i] << (i * 8);
-		mask |= 0x3F << (i * 8);
-	}
-	regmap_update_bits(cs35l41->regmap, CS35L41_SP_FRAME_TX_SLOT, mask, val);
-
-	return 0;
+	return cs35l41_set_channels(cs35l41->dev, cs35l41->regmap, tx_n, tx_slot, rx_n, rx_slot);
 }
 
 static int cs35l41_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)