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Message-Id: <20250215-apple-codec-changes-v1-26-723569b21b19@gmail.com>
Date: Sat, 15 Feb 2025 10:02:59 +1000
From: James Calligeros <jcalligeros99@...il.com>
To: Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>,
Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>,
Shenghao Ding <shenghao-ding@...com>, Kevin Lu <kevin-lu@...com>,
Baojun Xu <baojun.xu@...com>, Dan Murphy <dmurphy@...com>,
Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, Shi Fu <shifu0704@...ndersoft.com>
Cc: Alyssa Rosenzweig <alyssa@...enzweig.io>,
Martin PoviĊĦer <povik+lin@...ebit.org>,
Hector Martin <marcan@...can.st>, linux-sound@...r.kernel.org,
linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
asahi@...ts.linux.dev, James Calligeros <jcalligeros99@...il.com>
Subject: [PATCH 26/27] ASoC: tas2764: Set the SDOUT polarity correctly
From: Hector Martin <marcan@...can.st>
TX launch polarity needs to be the opposite of RX capture polarity, to
generate the right bit slot alignment.
Signed-off-by: Hector Martin <marcan@...can.st>
Signed-off-by: James Calligeros <jcalligeros99@...il.com>
---
sound/soc/codecs/tas2764.c | 10 +++++++++-
sound/soc/codecs/tas2764.h | 6 ++++++
2 files changed, 15 insertions(+), 1 deletion(-)
diff --git a/sound/soc/codecs/tas2764.c b/sound/soc/codecs/tas2764.c
index bdbc210ea8306ecebf704fe33fbe41083867e1ca..0cae0e8819d890f0818b531a40094f22e4e18fcb 100644
--- a/sound/soc/codecs/tas2764.c
+++ b/sound/soc/codecs/tas2764.c
@@ -426,7 +426,7 @@ static int tas2764_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
struct snd_soc_component *component = dai->component;
struct tas2764_priv *tas2764 = snd_soc_component_get_drvdata(component);
- u8 tdm_rx_start_slot = 0, asi_cfg_0 = 0, asi_cfg_1 = 0;
+ u8 tdm_rx_start_slot = 0, asi_cfg_0 = 0, asi_cfg_1 = 0, asi_cfg_4 = 0;
int ret;
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
@@ -435,12 +435,14 @@ static int tas2764_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
fallthrough;
case SND_SOC_DAIFMT_NB_NF:
asi_cfg_1 = TAS2764_TDM_CFG1_RX_RISING;
+ asi_cfg_4 = TAS2764_TDM_CFG4_TX_FALLING;
break;
case SND_SOC_DAIFMT_IB_IF:
asi_cfg_0 ^= TAS2764_TDM_CFG0_FRAME_START;
fallthrough;
case SND_SOC_DAIFMT_IB_NF:
asi_cfg_1 = TAS2764_TDM_CFG1_RX_FALLING;
+ asi_cfg_4 = TAS2764_TDM_CFG4_TX_RISING;
break;
}
@@ -450,6 +452,12 @@ static int tas2764_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
if (ret < 0)
return ret;
+ ret = snd_soc_component_update_bits(component, TAS2764_TDM_CFG4,
+ TAS2764_TDM_CFG4_TX_MASK,
+ asi_cfg_4);
+ if (ret < 0)
+ return ret;
+
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
asi_cfg_0 ^= TAS2764_TDM_CFG0_FRAME_START;
diff --git a/sound/soc/codecs/tas2764.h b/sound/soc/codecs/tas2764.h
index 786d81eb5b1e71bad094ef94e4b56e8f7c910285..4a419c11d4b08eebb915762db00af5c06ff3dd42 100644
--- a/sound/soc/codecs/tas2764.h
+++ b/sound/soc/codecs/tas2764.h
@@ -84,6 +84,12 @@
#define TAS2764_TDM_CFG3_RXS_SHIFT 0x4
#define TAS2764_TDM_CFG3_MASK GENMASK(3, 0)
+/* TDM Configuration Reg4 */
+#define TAS2764_TDM_CFG4 TAS2764_REG(0X0, 0x0d)
+#define TAS2764_TDM_CFG4_TX_MASK BIT(0)
+#define TAS2764_TDM_CFG4_TX_RISING 0x0
+#define TAS2764_TDM_CFG4_TX_FALLING BIT(0)
+
/* TDM Configuration Reg5 */
#define TAS2764_TDM_CFG5 TAS2764_REG(0X0, 0x0e)
#define TAS2764_TDM_CFG5_VSNS_MASK BIT(6)
--
2.48.1
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