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Date: Mon, 5 Apr 2021 23:38:01 +0900
From: Steve Lee <steves.lee@...imintegrated.com>
To: lgirdwood@...il.com, broonie@...nel.org, perex@...ex.cz,
tiwai@...e.com, ckeepax@...nsource.cirrus.com,
geert@...ux-m68k.org, rf@...nsource.wolfsonmicro.com,
shumingf@...ltek.com, srinivas.kandagatla@...aro.org,
krzk@...nel.org, jack.yu@...ltek.com, nuno.sa@...log.com,
steves.lee@...imintegrated.com, linux-kernel@...r.kernel.org,
alsa-devel@...a-project.org
Cc: ryan.lee.maxim@...il.com, steves.lee.maxim@...il.com
Subject: [PATCH] ASoC: max98390: Add support for tx slot configuration.
Update voltage/current tx slot configuration support.
Signed-off-by: Steve Lee <steves.lee@...imintegrated.com>
---
sound/soc/codecs/max98390.c | 62 +++++++++++++++++++++++++++++++++++++
sound/soc/codecs/max98390.h | 2 ++
2 files changed, 64 insertions(+)
diff --git a/sound/soc/codecs/max98390.c b/sound/soc/codecs/max98390.c
index bb736c44e68a..94773ccee9d5 100644
--- a/sound/soc/codecs/max98390.c
+++ b/sound/soc/codecs/max98390.c
@@ -856,6 +856,48 @@ static void max98390_init_regs(struct snd_soc_component *component)
regmap_write(max98390->regmap, MAX98390_ENV_TRACK_VOUT_HEADROOM, 0x0e);
regmap_write(max98390->regmap, MAX98390_BOOST_BYPASS1, 0x46);
regmap_write(max98390->regmap, MAX98390_FET_SCALING3, 0x03);
+
+ /* voltage, current slot configuration */
+ regmap_write(max98390->regmap,
+ MAX98390_PCM_CH_SRC_2,
+ (max98390->i_l_slot << 4 |
+ max98390->v_l_slot)&0xFF);
+
+ if (max98390->v_l_slot < 8) {
+ regmap_update_bits(max98390->regmap,
+ MAX98390_PCM_TX_HIZ_CTRL_A,
+ 1 << max98390->v_l_slot, 0);
+ regmap_update_bits(max98390->regmap,
+ MAX98390_PCM_TX_EN_A,
+ 1 << max98390->v_l_slot,
+ 1 << max98390->v_l_slot);
+ } else {
+ regmap_update_bits(max98390->regmap,
+ MAX98390_PCM_TX_HIZ_CTRL_B,
+ 1 << (max98390->v_l_slot - 8), 0);
+ regmap_update_bits(max98390->regmap,
+ MAX98390_PCM_TX_EN_B,
+ 1 << (max98390->v_l_slot - 8),
+ 1 << (max98390->v_l_slot - 8));
+ }
+
+ if (max98390->i_l_slot < 8) {
+ regmap_update_bits(max98390->regmap,
+ MAX98390_PCM_TX_HIZ_CTRL_A,
+ 1 << max98390->i_l_slot, 0);
+ regmap_update_bits(max98390->regmap,
+ MAX98390_PCM_TX_EN_A,
+ 1 << max98390->i_l_slot,
+ 1 << max98390->i_l_slot);
+ } else {
+ regmap_update_bits(max98390->regmap,
+ MAX98390_PCM_TX_HIZ_CTRL_B,
+ 1 << (max98390->i_l_slot - 8), 0);
+ regmap_update_bits(max98390->regmap,
+ MAX98390_PCM_TX_EN_B,
+ 1 << (max98390->i_l_slot - 8),
+ 1 << (max98390->i_l_slot - 8));
+ }
}
static int max98390_probe(struct snd_soc_component *component)
@@ -946,6 +988,23 @@ static const struct regmap_config max98390_regmap = {
.cache_type = REGCACHE_RBTREE,
};
+static void max98390_slot_config(struct i2c_client *i2c,
+ struct max98390_priv *max98390)
+{
+ int value;
+ struct device *dev = &i2c->dev;
+
+ if (!device_property_read_u32(dev, "maxim,vmon-slot-no", &value))
+ max98390->v_l_slot = value & 0xF;
+ else
+ max98390->v_l_slot = 0;
+
+ if (!device_property_read_u32(dev, "maxim,imon-slot-no", &value))
+ max98390->i_l_slot = value & 0xF;
+ else
+ max98390->i_l_slot = 1;
+}
+
static int max98390_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
@@ -988,6 +1047,9 @@ static int max98390_i2c_probe(struct i2c_client *i2c,
__func__, max98390->ref_rdc_value,
max98390->ambient_temp_value);
+ /* voltage/current slot configuration */
+ max98390_slot_config(i2c, max98390);
+
/* regmap initialization */
max98390->regmap = devm_regmap_init_i2c(i2c, &max98390_regmap);
if (IS_ERR(max98390->regmap)) {
diff --git a/sound/soc/codecs/max98390.h b/sound/soc/codecs/max98390.h
index dff884f68e3e..e31516717d3b 100644
--- a/sound/soc/codecs/max98390.h
+++ b/sound/soc/codecs/max98390.h
@@ -658,6 +658,8 @@ struct max98390_priv {
unsigned int sysclk;
unsigned int master;
unsigned int tdm_mode;
+ unsigned int v_l_slot;
+ unsigned int i_l_slot;
unsigned int ref_rdc_value;
unsigned int ambient_temp_value;
};
--
2.17.1
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