Configure the PDM sampling edges based on the values from the firmware.
Signed-off-by: Dan Murphy <dmurphy@xxxxxx>
---
sound/soc/codecs/tlv320adcx140.c | 22 ++++++++++++++++++++++
sound/soc/codecs/tlv320adcx140.h | 3 +++
2 files changed, 25 insertions(+)
diff --git a/sound/soc/codecs/tlv320adcx140.c b/sound/soc/codecs/tlv320adcx140.c
index 97634e0ca0ba..140a5802a9a9 100644
--- a/sound/soc/codecs/tlv320adcx140.c
+++ b/sound/soc/codecs/tlv320adcx140.c
@@ -760,6 +760,10 @@ static int adcx140_codec_probe(struct snd_soc_component *component)
int sleep_cfg_val = ADCX140_WAKE_DEV;
u8 bias_source;
u8 vref_source;
+ int pdm_count;
+ u32 pdm_edges[ADCX140_NUM_PDM_EDGES];
+ u32 pdm_edge_val = 0;
+ int i;
int ret;
ret = device_property_read_u8(adcx140->dev, "ti,mic-bias-source",
@@ -786,6 +790,24 @@ static int adcx140_codec_probe(struct snd_soc_component *component)
bias_source |= vref_source;
+ pdm_count = device_property_count_u32(adcx140->dev,
+ "ti,pdm-edge-select");
+ if (pdm_count <= ADCX140_NUM_PDM_EDGES && pdm_count > 0) {
+ ret = device_property_read_u32_array(adcx140->dev,
+ "ti,pdm-edge-select",
+ pdm_edges, pdm_count);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < pdm_count; i++)
+ pdm_edge_val |= pdm_edges[i] << (ADCX140_PDM_EDGE_SHIFT - i);
+
+ ret = regmap_write(adcx140->regmap, ADCX140_PDM_CFG,
+ pdm_edge_val);
+ if (ret)
+ return ret;
+ }
+
ret = adcx140_reset(adcx140);
if (ret)
goto out;
diff --git a/sound/soc/codecs/tlv320adcx140.h b/sound/soc/codecs/tlv320adcx140.h
index 6d055e55909e..432eaf25d1a7 100644
--- a/sound/soc/codecs/tlv320adcx140.h
+++ b/sound/soc/codecs/tlv320adcx140.h
@@ -128,4 +128,7 @@
#define ADCX140_TX_OFFSET_MASK GENMASK(4, 0)
+#define ADCX140_NUM_PDM_EDGES 4
+#define ADCX140_PDM_EDGE_SHIFT 7
+
#endif /* _TLV320ADCX140_ */
--
2.26.2
