ASoC: max98390: Add support for tx slot configuration.

Commit Message

Steve Lee April 5, 2021, 2:38 p.m. UTC

Update voltage/current tx slot configuration support.

Signed-off-by: Steve Lee <[e-mail]>
---
 sound/soc/codecs/max98390.c | 62 +++++++++++++++++++++++++++++++++++++
 sound/soc/codecs/max98390.h |  2 ++
 2 files changed, 64 insertions(+)

Comments

Mark Brown April 6, 2021, 5:39 p.m. UTC | #1

On Mon, 5 Apr 2021 23:38:01 +0900, Steve Lee wrote:
>  Update voltage/current tx slot configuration support.

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next

Thanks!

[1/1] ASoC: max98390: Add support for tx slot configuration.
      commit: e5870bd0e40c749fd96a4e565497c789bee456bf

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

Patch

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;
 };