Applied "ASoC: cros_ec_codec: extract DMIC EC command from I2S RX" to the asoc tree

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The patch

   ASoC: cros_ec_codec: extract DMIC EC command from I2S RX

has been applied to the asoc tree at

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.5

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

>From 8f731d4c92c2ef9434d4d7f84882c6429754164b Mon Sep 17 00:00:00 2001
From: Tzung-Bi Shih <tzungbi@xxxxxxxxxx>
Date: Mon, 14 Oct 2019 18:20:15 +0800
Subject: [PATCH] ASoC: cros_ec_codec: extract DMIC EC command from I2S RX

Extract DMIC EC command from I2S RX.  Setting and getting
microphone gains is common features.

Signed-off-by: Tzung-Bi Shih <tzungbi@xxxxxxxxxx>
Acked-By: Benson Leung <bleung@xxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20191014180059.03.I93d9c65964f3c30f85a36d228e31150ff1917706@changeid
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
---
 drivers/platform/chrome/cros_ec_trace.c       |  1 +
 .../linux/platform_data/cros_ec_commands.h    | 49 +++++++++++-----
 sound/soc/codecs/cros_ec_codec.c              | 57 ++++++++++---------
 3 files changed, 68 insertions(+), 39 deletions(-)

diff --git a/drivers/platform/chrome/cros_ec_trace.c b/drivers/platform/chrome/cros_ec_trace.c
index 901850004b2b..e73bb6a8b00e 100644
--- a/drivers/platform/chrome/cros_ec_trace.c
+++ b/drivers/platform/chrome/cros_ec_trace.c
@@ -98,6 +98,7 @@
 	TRACE_SYMBOL(EC_CMD_SB_READ_BLOCK), \
 	TRACE_SYMBOL(EC_CMD_SB_WRITE_BLOCK), \
 	TRACE_SYMBOL(EC_CMD_BATTERY_VENDOR_PARAM), \
+	TRACE_SYMBOL(EC_CMD_EC_CODEC_DMIC), \
 	TRACE_SYMBOL(EC_CMD_EC_CODEC_I2S_RX), \
 	TRACE_SYMBOL(EC_CMD_REBOOT_EC), \
 	TRACE_SYMBOL(EC_CMD_GET_PANIC_INFO), \
diff --git a/include/linux/platform_data/cros_ec_commands.h b/include/linux/platform_data/cros_ec_commands.h
index 261ac83bd007..58e460c015ef 100644
--- a/include/linux/platform_data/cros_ec_commands.h
+++ b/include/linux/platform_data/cros_ec_commands.h
@@ -4466,18 +4466,48 @@ enum mkbp_cec_event {
 
 /*****************************************************************************/
 
+/* Commands for DMIC on audio codec. */
+#define EC_CMD_EC_CODEC_DMIC 0x00BC
+
+enum ec_codec_dmic_subcmd {
+	EC_CODEC_DMIC_SET_GAIN = 0x0,
+	EC_CODEC_DMIC_GET_GAIN = 0x1,
+	EC_CODEC_DMIC_SUBCMD_COUNT,
+};
+
+struct __ec_align1 ec_param_ec_codec_dmic_set_gain {
+	uint8_t left;
+	uint8_t right;
+	uint8_t reserved[2];
+};
+
+struct __ec_align4 ec_param_ec_codec_dmic {
+	uint8_t cmd; /* enum ec_codec_dmic_subcmd */
+	uint8_t reserved[3];
+
+	union {
+		struct ec_param_ec_codec_dmic_set_gain
+				set_gain_param;
+	};
+};
+
+struct __ec_align1 ec_response_ec_codec_dmic_get_gain {
+	uint8_t left;
+	uint8_t right;
+};
+
+/*****************************************************************************/
+
 /* Commands for I2S RX on audio codec. */
 
-#define EC_CMD_EC_CODEC_I2S_RX 0x00BC
+#define EC_CMD_EC_CODEC_I2S_RX 0x00BD
 
 enum ec_codec_i2s_rx_subcmd {
 	EC_CODEC_I2S_RX_ENABLE = 0x0,
 	EC_CODEC_I2S_RX_DISABLE = 0x1,
-	EC_CODEC_I2S_RX_SET_GAIN = 0x2,
-	EC_CODEC_I2S_RX_GET_GAIN = 0x3,
-	EC_CODEC_I2S_RX_SET_SAMPLE_DEPTH = 0x4,
-	EC_CODEC_I2S_RX_SET_DAIFMT = 0x5,
-	EC_CODEC_I2S_RX_SET_BCLK = 0x6,
+	EC_CODEC_I2S_RX_SET_SAMPLE_DEPTH = 0x2,
+	EC_CODEC_I2S_RX_SET_DAIFMT = 0x3,
+	EC_CODEC_I2S_RX_SET_BCLK = 0x4,
 	EC_CODEC_I2S_RX_SUBCMD_COUNT,
 };
 
@@ -4521,8 +4551,6 @@ struct __ec_align4 ec_param_ec_codec_i2s_rx {
 	union {
 		struct ec_param_ec_codec_i2s_rx_set_sample_depth
 				set_sample_depth_param;
-		struct ec_param_ec_codec_i2s_rx_set_gain
-				set_gain_param;
 		struct ec_param_ec_codec_i2s_rx_set_daifmt
 				set_daifmt_param;
 		struct ec_param_ec_codec_i2s_rx_set_bclk
@@ -4530,11 +4558,6 @@ struct __ec_align4 ec_param_ec_codec_i2s_rx {
 	};
 };
 
-struct __ec_align1 ec_response_ec_codec_i2s_rx_get_gain {
-	uint8_t left;
-	uint8_t right;
-};
-
 /*****************************************************************************/
 /* System commands */
 
diff --git a/sound/soc/codecs/cros_ec_codec.c b/sound/soc/codecs/cros_ec_codec.c
index 179fa77291cd..c19c7fe42e2e 100644
--- a/sound/soc/codecs/cros_ec_codec.c
+++ b/sound/soc/codecs/cros_ec_codec.c
@@ -64,12 +64,12 @@ static int dmic_get_gain(struct snd_kcontrol *kcontrol,
 		snd_soc_kcontrol_component(kcontrol);
 	struct cros_ec_codec_priv *priv =
 		snd_soc_component_get_drvdata(component);
-	struct ec_param_ec_codec_i2s_rx p;
-	struct ec_response_ec_codec_i2s_rx_get_gain r;
+	struct ec_param_ec_codec_dmic p;
+	struct ec_response_ec_codec_dmic_get_gain r;
 	int ret;
 
-	p.cmd = EC_CODEC_I2S_RX_GET_GAIN;
-	ret = send_ec_host_command(priv->ec_device, EC_CMD_EC_CODEC_I2S_RX,
+	p.cmd = EC_CODEC_DMIC_GET_GAIN;
+	ret = send_ec_host_command(priv->ec_device, EC_CMD_EC_CODEC_DMIC,
 				   (uint8_t *)&p, sizeof(p),
 				   (uint8_t *)&r, sizeof(r));
 	if (ret < 0)
@@ -93,17 +93,17 @@ static int dmic_put_gain(struct snd_kcontrol *kcontrol,
 	int max_dmic_gain = control->max;
 	int left = ucontrol->value.integer.value[0];
 	int right = ucontrol->value.integer.value[1];
-	struct ec_param_ec_codec_i2s_rx p;
+	struct ec_param_ec_codec_dmic p;
 
 	if (left > max_dmic_gain || right > max_dmic_gain)
 		return -EINVAL;
 
 	dev_dbg(component->dev, "set mic gain to %u, %u\n", left, right);
 
-	p.cmd = EC_CODEC_I2S_RX_SET_GAIN;
+	p.cmd = EC_CODEC_DMIC_SET_GAIN;
 	p.set_gain_param.left = left;
 	p.set_gain_param.right = right;
-	return send_ec_host_command(priv->ec_device, EC_CMD_EC_CODEC_I2S_RX,
+	return send_ec_host_command(priv->ec_device, EC_CMD_EC_CODEC_DMIC,
 				    (uint8_t *)&p, sizeof(p), NULL, 0);
 }
 
@@ -120,6 +120,29 @@ static struct snd_kcontrol_new dmic_controls[] = {
 				   dmic_gain_tlv),
 };
 
+static int dmic_probe(struct snd_soc_component *component)
+{
+	struct cros_ec_codec_priv *priv =
+		snd_soc_component_get_drvdata(component);
+	struct device *dev = priv->dev;
+	int ret, val;
+	struct soc_mixer_control *control;
+
+	ret = device_property_read_u32(dev, "max-dmic-gain", &val);
+	if (ret) {
+		dev_err(dev, "Failed to read 'max-dmic-gain'\n");
+		return ret;
+	}
+
+	control = (struct soc_mixer_control *)
+		dmic_controls[DMIC_CTL_GAIN].private_value;
+	control->max = val;
+	control->platform_max = val;
+
+	return snd_soc_add_component_controls(component,
+			&dmic_controls[DMIC_CTL_GAIN], 1);
+}
+
 static int i2s_rx_hw_params(struct snd_pcm_substream *substream,
 			    struct snd_pcm_hw_params *params,
 			    struct snd_soc_dai *dai)
@@ -265,25 +288,7 @@ static struct snd_soc_dai_driver i2s_rx_dai_driver = {
 
 static int i2s_rx_probe(struct snd_soc_component *component)
 {
-	struct cros_ec_codec_priv *priv =
-		snd_soc_component_get_drvdata(component);
-	struct device *dev = priv->dev;
-	int ret, val;
-	struct soc_mixer_control *control;
-
-	ret = device_property_read_u32(dev, "max-dmic-gain", &val);
-	if (ret) {
-		dev_err(dev, "Failed to read 'max-dmic-gain'\n");
-		return ret;
-	}
-
-	control = (struct soc_mixer_control *)
-			dmic_controls[DMIC_CTL_GAIN].private_value;
-	control->max = val;
-	control->platform_max = val;
-
-	return snd_soc_add_component_controls(component,
-			&dmic_controls[DMIC_CTL_GAIN], 1);
+	return dmic_probe(component);
 }
 
 static const struct snd_soc_component_driver i2s_rx_component_driver = {
-- 
2.20.1

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