[v5,6/7] ASoC: tas2562: Add voltage sense slot configuration

Message ID 20200624161459.19248-7-dmurphy@ti.com
State Accepted
Commit 09ed395b05feb7d0f77ab52c48d2f77c1b44d2ab
Headers show
Series
  • TAS2562 issue fixes and slot programming
Related show

Commit Message

Dan Murphy June 24, 2020, 4:14 p.m.
Add Vsense slot configuration based on the device tree.  Adding this
property enables the slot programming to be moved to the tdm_set_slot
callback.  This in affect sets the slots for the Isense and Vsense and
enabling this these modes are now based on whether these features were
powered on or not.

Signed-off-by: Dan Murphy <dmurphy@ti.com>
---
 sound/soc/codecs/tas2562.c | 65 ++++++++++++++++++++++++++++++--------
 1 file changed, 51 insertions(+), 14 deletions(-)

Patch

diff --git a/sound/soc/codecs/tas2562.c b/sound/soc/codecs/tas2562.c
index 2f1d4b697f01..b0b7cef79433 100644
--- a/sound/soc/codecs/tas2562.c
+++ b/sound/soc/codecs/tas2562.c
@@ -224,12 +224,26 @@  static int tas2562_set_dai_tdm_slot(struct snd_soc_dai *dai,
 	if (ret < 0)
 		return ret;
 
+	ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG5,
+					    TAS2562_TDM_CFG5_VSNS_SLOT_MASK,
+					    tas2562->v_sense_slot);
+	if (ret < 0)
+		return ret;
+
+	ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG6,
+					    TAS2562_TDM_CFG6_ISNS_SLOT_MASK,
+					    tas2562->i_sense_slot);
+	if (ret < 0)
+		return ret;
+
 	return 0;
 }
 
 static int tas2562_set_bitwidth(struct tas2562_data *tas2562, int bitwidth)
 {
 	int ret;
+	int val;
+	int sense_en;
 
 	switch (bitwidth) {
 	case SNDRV_PCM_FORMAT_S16_LE:
@@ -237,21 +251,18 @@  static int tas2562_set_bitwidth(struct tas2562_data *tas2562, int bitwidth)
 					      TAS2562_TDM_CFG2,
 					      TAS2562_TDM_CFG2_RXWLEN_MASK,
 					      TAS2562_TDM_CFG2_RXWLEN_16B);
-		tas2562->v_sense_slot = tas2562->i_sense_slot + 2;
 		break;
 	case SNDRV_PCM_FORMAT_S24_LE:
 		snd_soc_component_update_bits(tas2562->component,
 					      TAS2562_TDM_CFG2,
 					      TAS2562_TDM_CFG2_RXWLEN_MASK,
 					      TAS2562_TDM_CFG2_RXWLEN_24B);
-		tas2562->v_sense_slot = tas2562->i_sense_slot + 4;
 		break;
 	case SNDRV_PCM_FORMAT_S32_LE:
 		snd_soc_component_update_bits(tas2562->component,
 					      TAS2562_TDM_CFG2,
 					      TAS2562_TDM_CFG2_RXWLEN_MASK,
 					      TAS2562_TDM_CFG2_RXWLEN_32B);
-		tas2562->v_sense_slot = tas2562->i_sense_slot + 4;
 		break;
 
 	default:
@@ -259,17 +270,27 @@  static int tas2562_set_bitwidth(struct tas2562_data *tas2562, int bitwidth)
 		return -EINVAL;
 	}
 
-	ret = snd_soc_component_update_bits(tas2562->component,
-		TAS2562_TDM_CFG5,
-		TAS2562_TDM_CFG5_VSNS_EN | TAS2562_TDM_CFG5_VSNS_SLOT_MASK,
-		TAS2562_TDM_CFG5_VSNS_EN | tas2562->v_sense_slot);
+	val = snd_soc_component_read(tas2562->component, TAS2562_PWR_CTRL);
+	if (val < 0)
+		return val;
+
+	if (val & (1 << TAS2562_VSENSE_POWER_EN))
+		sense_en = 0;
+	else
+		sense_en = TAS2562_TDM_CFG5_VSNS_EN;
+
+	ret = snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG5,
+		TAS2562_TDM_CFG5_VSNS_EN, sense_en);
 	if (ret < 0)
 		return ret;
 
-	ret = snd_soc_component_update_bits(tas2562->component,
-		TAS2562_TDM_CFG6,
-		TAS2562_TDM_CFG6_ISNS_EN | TAS2562_TDM_CFG6_ISNS_SLOT_MASK,
-		TAS2562_TDM_CFG6_ISNS_EN | tas2562->i_sense_slot);
+	if (val & (1 << TAS2562_ISENSE_POWER_EN))
+		sense_en = 0;
+	else
+		sense_en = TAS2562_TDM_CFG6_ISNS_EN;
+
+	ret = snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG6,
+		TAS2562_TDM_CFG6_ISNS_EN, sense_en);
 	if (ret < 0)
 		return ret;
 
@@ -645,9 +666,25 @@  static int tas2562_parse_dt(struct tas2562_data *tas2562)
 
 	ret = fwnode_property_read_u32(dev->fwnode, "ti,imon-slot-no",
 			&tas2562->i_sense_slot);
-	if (ret)
-		dev_err(dev, "Looking up %s property failed %d\n",
-			"ti,imon-slot-no", ret);
+	if (ret) {
+		dev_err(dev, "Property %s is missing setting default slot\n",
+			"ti,imon-slot-no");
+		tas2562->i_sense_slot = 0;
+	}
+
+
+	ret = fwnode_property_read_u32(dev->fwnode, "ti,vmon-slot-no",
+			&tas2562->v_sense_slot);
+	if (ret) {
+		dev_info(dev, "Property %s is missing setting default slot\n",
+			"ti,vmon-slot-no");
+		tas2562->v_sense_slot = 2;
+	}
+
+	if (tas2562->v_sense_slot < tas2562->i_sense_slot) {
+		dev_err(dev, "Vsense slot must be greater than Isense slot\n");
+		return -EINVAL;
+	}
 
 	return ret;
 }