[PATCH v2 00/19] Add Headphone Detection to TLV320AIC31xx Driver

[PATCH v2 00/19] Add Headphone Detection to TLV320AIC31xx Driver

[Andrew F. Davis]

Hello all,

This series has the end goal of adding headphone detection to
the tlv320aic31xx driver. The first few patches are mostly cleanups.
Then a couple bug fixes I noticed. Followed by adding interrupt
handling and finally headphone detection.

This series (or at least patch #8) depend on this DT fix[0].

Thanks,
Andrew

Changes from v1:
 - Splitup the cleanup patch a bit more
 - Move the GPIO1 register fix patch before header cleanup
   so it can be taken back into stable
 - Added Acked-by
 - New patch dealing with regulator notifications
 - Various small touchups
 - Rebased on v4.15-rc1 + [0]

[0] http://www.spinics.net/lists/kernel/msg2660968.html

Andrew F. Davis (19):
  ASoC: tlv320aic31xx: File header and copyright cleanup
  ASoC: tlv320aic31xx: Change aic31xx_power_off return type to void
  ASoC: tlv320aic31xx: Move ACPI table next to OF table
  ASoC: tlv320aic31xx: General source formatting cleanup
  ASoC: tlv320aic31xx: Fix GPIO1 register definition
  ASoC: tlv320aic31xx: Reformat header file using GENMASK and BIT macros
  ASoC: tlv320aic31xx: Merge init function into probe
  ASoC: tlv320aic31xx: Switch GPIO handling to use gpiod_* API
  ASoC: tlv320aic31xx: Remove platform data
  ASoC: tlv320aic31xx: Add MICBIAS off setting
  ASoC: tlv320aic31xx: Check clock and divider before division
  ASoC: tlv320aic31xx: Add CODEC clock slave support
  ASoC: tlv320aic31xx: Fix inverted BCLK handling
  ASoC: tlv320aic31xx: Remove regulator notification handling
  ASoC: tlv320aic31xx: Reset registers during power up
  ASoC: tlv320aic31xx: Add short circuit detection support
  ASoC: tlv320aic31xx: Add overflow detection support
  ASoC: tlv320aic31xx: Add headphone/headset detection
  ASoC: tlv320aic31xx: Add button press detection

 .../devicetree/bindings/sound/tlv320aic31xx.txt    |   1 +
 include/dt-bindings/sound/tlv320aic31xx-micbias.h  |   1 +
 sound/soc/codecs/tlv320aic31xx.c                   | 422 ++++++++++--------
 sound/soc/codecs/tlv320aic31xx.h                   | 496 ++++++++++-----------
 4 files changed, 471 insertions(+), 449 deletions(-)
 rewrite sound/soc/codecs/tlv320aic31xx.h (83%)

-- 
2.15.0

[PATCH v2 01/19] ASoC: tlv320aic31xx: File header and copyright cleanup

[Andrew F. Davis]

Fix header copyright tags, while we are here, also switch to SPDX
and fixup MODULE tags to match.

Signed-off-by: Andrew F. Davis <afd@ti.com>
---
 sound/soc/codecs/tlv320aic31xx.c | 26 +++++++++-----------------
 sound/soc/codecs/tlv320aic31xx.h | 15 ++++-----------
 2 files changed, 13 insertions(+), 28 deletions(-)

diff --git a/sound/soc/codecs/tlv320aic31xx.c b/sound/soc/codecs/tlv320aic31xx.c
index 4837f25b0760..b98d9b1f216f 100644
--- a/sound/soc/codecs/tlv320aic31xx.c
+++ b/sound/soc/codecs/tlv320aic31xx.c
@@ -1,22 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
- * ALSA SoC TLV320AIC31XX codec driver
+ * ALSA SoC TLV320AIC31xx CODEC Driver
  *
- * Copyright (C) 2014 Texas Instruments, Inc.
- *
- * Author: Jyri Sarha <jsarha@ti.com>
+ * Copyright (C) 2014-2017 Texas Instruments Incorporated - http://www.ti.com/
+ *	Jyri Sarha <jsarha@ti.com>
  *
  * Based on ground work by: Ajit Kulkarni <x0175765@ti.com>
  *
- * This package is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * THIS PACKAGE IS PROVIDED AS IS AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- *
- * The TLV320AIC31xx series of audio codec is a low-power, highly integrated
- * high performance codec which provides a stereo DAC, a mono ADC,
+ * The TLV320AIC31xx series of audio codecs are low-power, highly integrated
+ * high performance codecs which provides a stereo DAC, a mono ADC,
  * and mono/stereo Class-D speaker driver.
  */
 
@@ -1414,6 +1406,6 @@ static struct i2c_driver aic31xx_i2c_driver = {
 
 module_i2c_driver(aic31xx_i2c_driver);
 
-MODULE_DESCRIPTION("ASoC TLV320AIC3111 codec driver");
-MODULE_AUTHOR("Jyri Sarha");
-MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Jyri Sarha <jsarha@ti.com>");
+MODULE_DESCRIPTION("ASoC TLV320AIC31xx CODEC Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/codecs/tlv320aic31xx.h b/sound/soc/codecs/tlv320aic31xx.h
index 730fb2058869..a9ea2f99eba0 100644
--- a/sound/soc/codecs/tlv320aic31xx.h
+++ b/sound/soc/codecs/tlv320aic31xx.h
@@ -1,17 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
- * ALSA SoC TLV320AIC31XX codec driver
- *
- * Copyright (C) 2013 Texas Instruments, Inc.
- *
- * This package is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ * ALSA SoC TLV320AIC31xx CODEC Driver Definitions
  *
+ * Copyright (C) 2014-2017 Texas Instruments Incorporated - http://www.ti.com/
  */
+
 #ifndef _TLV320AIC31XX_H
 #define _TLV320AIC31XX_H
 
-- 
2.15.0

[PATCH v2 02/19] ASoC: tlv320aic31xx: Change aic31xx_power_off return type to void

[Andrew F. Davis]

The return value is not checked, and even if it was there is nothing
we could do about it and messages are already printed.

Signed-off-by: Andrew F. Davis <afd@ti.com>
---
 sound/soc/codecs/tlv320aic31xx.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/sound/soc/codecs/tlv320aic31xx.c b/sound/soc/codecs/tlv320aic31xx.c
index b98d9b1f216f..0563a49cc5e4 100644
--- a/sound/soc/codecs/tlv320aic31xx.c
+++ b/sound/soc/codecs/tlv320aic31xx.c
@@ -1081,16 +1081,13 @@ static int aic31xx_power_on(struct snd_soc_codec *codec)
 	return 0;
 }
 
-static int aic31xx_power_off(struct snd_soc_codec *codec)
+static void aic31xx_power_off(struct snd_soc_codec *codec)
 {
 	struct aic31xx_priv *aic31xx = snd_soc_codec_get_drvdata(codec);
-	int ret = 0;
 
 	regcache_cache_only(aic31xx->regmap, true);
-	ret = regulator_bulk_disable(ARRAY_SIZE(aic31xx->supplies),
-				     aic31xx->supplies);
-
-	return ret;
+	regulator_bulk_disable(ARRAY_SIZE(aic31xx->supplies),
+			       aic31xx->supplies);
 }
 
 static int aic31xx_set_bias_level(struct snd_soc_codec *codec,
-- 
2.15.0

[PATCH v2 03/19] ASoC: tlv320aic31xx: Move ACPI table next to OF table

[Andrew F. Davis]

Signed-off-by: Andrew F. Davis <afd@ti.com>
---
 sound/soc/codecs/tlv320aic31xx.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/sound/soc/codecs/tlv320aic31xx.c b/sound/soc/codecs/tlv320aic31xx.c
index 0563a49cc5e4..d974e8651e30 100644
--- a/sound/soc/codecs/tlv320aic31xx.c
+++ b/sound/soc/codecs/tlv320aic31xx.c
@@ -1285,6 +1285,14 @@ static void aic31xx_pdata_from_of(struct aic31xx_priv *aic31xx)
 }
 #endif /* CONFIG_OF */
 
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id aic31xx_acpi_match[] = {
+	{ "10TI3100", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(acpi, aic31xx_acpi_match);
+#endif
+
 static int aic31xx_device_init(struct aic31xx_priv *aic31xx)
 {
 	int ret, i;
@@ -1382,14 +1390,6 @@ static const struct i2c_device_id aic31xx_i2c_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, aic31xx_i2c_id);
 
-#ifdef CONFIG_ACPI
-static const struct acpi_device_id aic31xx_acpi_match[] = {
-	{ "10TI3100", 0 },
-	{ }
-};
-MODULE_DEVICE_TABLE(acpi, aic31xx_acpi_match);
-#endif
-
 static struct i2c_driver aic31xx_i2c_driver = {
 	.driver = {
 		.name	= "tlv320aic31xx-codec",
-- 
2.15.0

[PATCH v2 04/19] ASoC: tlv320aic31xx: General source formatting cleanup

[Andrew F. Davis]

Simple non-functional changes including:

 * Fix spelling errors
 * Reformat code for easier reading
 * Remove unneeded code
 * Remove assignments that are always overridden
 * Normalize function return paths

Signed-off-by: Andrew F. Davis <afd@ti.com>
---
 sound/soc/codecs/tlv320aic31xx.c | 63 ++++++++++++++++++++++------------------
 1 file changed, 35 insertions(+), 28 deletions(-)

diff --git a/sound/soc/codecs/tlv320aic31xx.c b/sound/soc/codecs/tlv320aic31xx.c
index d974e8651e30..07c014501e5e 100644
--- a/sound/soc/codecs/tlv320aic31xx.c
+++ b/sound/soc/codecs/tlv320aic31xx.c
@@ -136,8 +136,7 @@ static const struct regmap_config aic31xx_i2c_regmap = {
 	.max_register = 12 * 128,
 };
 
-#define AIC31XX_NUM_SUPPLIES	6
-static const char * const aic31xx_supply_names[AIC31XX_NUM_SUPPLIES] = {
+static const char * const aic31xx_supply_names[] = {
 	"HPVDD",
 	"SPRVDD",
 	"SPLVDD",
@@ -146,6 +145,8 @@ static const char * const aic31xx_supply_names[AIC31XX_NUM_SUPPLIES] = {
 	"DVDD",
 };
 
+#define AIC31XX_NUM_SUPPLIES ARRAY_SIZE(aic31xx_supply_names)
+
 struct aic31xx_disable_nb {
 	struct notifier_block nb;
 	struct aic31xx_priv *aic31xx;
@@ -177,7 +178,7 @@ struct aic31xx_rate_divs {
 	u8 madc;
 };
 
-/* ADC dividers can be disabled by cofiguring them to 0 */
+/* ADC dividers can be disabled by configuring them to 0 */
 static const struct aic31xx_rate_divs aic31xx_divs[] = {
 	/* mclk/p    rate  pll: j     d        dosr ndac mdac  aors nadc madc */
 	/* 8k rate */
@@ -832,11 +833,17 @@ static int aic31xx_setup_pll(struct snd_soc_codec *codec,
 
 	dev_dbg(codec->dev,
 		"pll %d.%04d/%d dosr %d n %d m %d aosr %d n %d m %d bclk_n %d\n",
-		aic31xx_divs[i].pll_j, aic31xx_divs[i].pll_d,
-		aic31xx->p_div, aic31xx_divs[i].dosr,
-		aic31xx_divs[i].ndac, aic31xx_divs[i].mdac,
-		aic31xx_divs[i].aosr, aic31xx_divs[i].nadc,
-		aic31xx_divs[i].madc, bclk_n);
+		aic31xx_divs[i].pll_j,
+		aic31xx_divs[i].pll_d,
+		aic31xx->p_div,
+		aic31xx_divs[i].dosr,
+		aic31xx_divs[i].ndac,
+		aic31xx_divs[i].mdac,
+		aic31xx_divs[i].aosr,
+		aic31xx_divs[i].nadc,
+		aic31xx_divs[i].madc,
+		bclk_n
+	);
 
 	return 0;
 }
@@ -973,8 +980,9 @@ static int aic31xx_set_dai_sysclk(struct snd_soc_dai *codec_dai,
 	dev_dbg(codec->dev, "## %s: clk_id = %d, freq = %d, dir = %d\n",
 		__func__, clk_id, freq, dir);
 
-	for (i = 1; freq/i > 20000000 && i < 8; i++)
-		;
+	for (i = 1; i < 8; i++)
+		if (freq / i <= 20000000)
+			break;
 	if (freq/i > 20000000) {
 		dev_err(aic31xx->dev, "%s: Too high mclk frequency %u\n",
 			__func__, freq);
@@ -982,9 +990,9 @@ static int aic31xx_set_dai_sysclk(struct snd_soc_dai *codec_dai,
 	}
 	aic31xx->p_div = i;
 
-	for (i = 0; i < ARRAY_SIZE(aic31xx_divs) &&
-		     aic31xx_divs[i].mclk_p != freq/aic31xx->p_div; i++)
-		;
+	for (i = 0; i < ARRAY_SIZE(aic31xx_divs); i++)
+		if (aic31xx_divs[i].mclk_p == freq / aic31xx->p_div)
+			break;
 	if (i == ARRAY_SIZE(aic31xx_divs)) {
 		dev_err(aic31xx->dev, "%s: Unsupported frequency %d\n",
 			__func__, freq);
@@ -996,6 +1004,7 @@ static int aic31xx_set_dai_sysclk(struct snd_soc_dai *codec_dai,
 			    clk_id << AIC31XX_PLL_CLKIN_SHIFT);
 
 	aic31xx->sysclk = freq;
+
 	return 0;
 }
 
@@ -1057,7 +1066,7 @@ static void aic31xx_clk_off(struct snd_soc_codec *codec)
 static int aic31xx_power_on(struct snd_soc_codec *codec)
 {
 	struct aic31xx_priv *aic31xx = snd_soc_codec_get_drvdata(codec);
-	int ret = 0;
+	int ret;
 
 	ret = regulator_bulk_enable(ARRAY_SIZE(aic31xx->supplies),
 				    aic31xx->supplies);
@@ -1070,7 +1079,7 @@ static int aic31xx_power_on(struct snd_soc_codec *codec)
 	}
 	regcache_cache_only(aic31xx->regmap, false);
 	ret = regcache_sync(aic31xx->regmap);
-	if (ret != 0) {
+	if (ret) {
 		dev_err(codec->dev,
 			"Failed to restore cache: %d\n", ret);
 		regcache_cache_only(aic31xx->regmap, true);
@@ -1078,6 +1087,7 @@ static int aic31xx_power_on(struct snd_soc_codec *codec)
 				       aic31xx->supplies);
 		return ret;
 	}
+
 	return 0;
 }
 
@@ -1126,14 +1136,11 @@ static int aic31xx_set_bias_level(struct snd_soc_codec *codec,
 
 static int aic31xx_codec_probe(struct snd_soc_codec *codec)
 {
-	int ret = 0;
 	struct aic31xx_priv *aic31xx = snd_soc_codec_get_drvdata(codec);
-	int i;
+	int i, ret;
 
 	dev_dbg(aic31xx->dev, "## %s\n", __func__);
 
-	aic31xx = snd_soc_codec_get_drvdata(codec);
-
 	aic31xx->codec = codec;
 
 	for (i = 0; i < ARRAY_SIZE(aic31xx->supplies); i++) {
@@ -1158,8 +1165,10 @@ static int aic31xx_codec_probe(struct snd_soc_codec *codec)
 		return ret;
 
 	ret = aic31xx_add_widgets(codec);
+	if (ret)
+		return ret;
 
-	return ret;
+	return 0;
 }
 
 static int aic31xx_codec_remove(struct snd_soc_codec *codec)
@@ -1322,10 +1331,12 @@ static int aic31xx_device_init(struct aic31xx_priv *aic31xx)
 	ret = devm_regulator_bulk_get(aic31xx->dev,
 				      ARRAY_SIZE(aic31xx->supplies),
 				      aic31xx->supplies);
-	if (ret != 0)
+	if (ret) {
 		dev_err(aic31xx->dev, "Failed to request supplies: %d\n", ret);
+		return ret;
+	}
 
-	return ret;
+	return 0;
 }
 
 static int aic31xx_i2c_probe(struct i2c_client *i2c,
@@ -1333,18 +1344,15 @@ static int aic31xx_i2c_probe(struct i2c_client *i2c,
 {
 	struct aic31xx_priv *aic31xx;
 	int ret;
-	const struct regmap_config *regmap_config;
 
 	dev_dbg(&i2c->dev, "## %s: %s codec_type = %d\n", __func__,
 		id->name, (int) id->driver_data);
 
-	regmap_config = &aic31xx_i2c_regmap;
-
 	aic31xx = devm_kzalloc(&i2c->dev, sizeof(*aic31xx), GFP_KERNEL);
-	if (aic31xx == NULL)
+	if (!aic31xx)
 		return -ENOMEM;
 
-	aic31xx->regmap = devm_regmap_init_i2c(i2c, regmap_config);
+	aic31xx->regmap = devm_regmap_init_i2c(i2c, &aic31xx_i2c_regmap);
 	if (IS_ERR(aic31xx->regmap)) {
 		ret = PTR_ERR(aic31xx->regmap);
 		dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
@@ -1400,7 +1408,6 @@ static struct i2c_driver aic31xx_i2c_driver = {
 	.remove		= aic31xx_i2c_remove,
 	.id_table	= aic31xx_i2c_id,
 };
-
 module_i2c_driver(aic31xx_i2c_driver);
 
 MODULE_AUTHOR("Jyri Sarha <jsarha@ti.com>");
-- 
2.15.0

[PATCH v2 05/19] ASoC: tlv320aic31xx: Fix GPIO1 register definition

[Andrew F. Davis]

GPIO1 control register is number 51, fix this here.

Fixes: bafcbfe429eb ("ASoC: tlv320aic31xx: Make the register values human readable")
Signed-off-by: Andrew F. Davis <afd@ti.com>
---
 sound/soc/codecs/tlv320aic31xx.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/tlv320aic31xx.h b/sound/soc/codecs/tlv320aic31xx.h
index a9ea2f99eba0..6efea0485392 100644
--- a/sound/soc/codecs/tlv320aic31xx.h
+++ b/sound/soc/codecs/tlv320aic31xx.h
@@ -109,7 +109,7 @@ struct aic31xx_pdata {
 /* INT2 interrupt control */
 #define AIC31XX_INT2CTRL	AIC31XX_REG(0, 49)
 /* GPIO1 control */
-#define AIC31XX_GPIO1		AIC31XX_REG(0, 50)
+#define AIC31XX_GPIO1		AIC31XX_REG(0, 51)
 
 #define AIC31XX_DACPRB		AIC31XX_REG(0, 60)
 /* ADC Instruction Set Register */
-- 
2.15.0

[PATCH v2 06/19] ASoC: tlv320aic31xx: Reformat header file using GENMASK and BIT macros

[Andrew F. Davis]

We also move the comments describing the registers to after the register
definition to remove non-uniform vertical white-space, this makes
cross-referencing with the datasheet much easier.

Signed-off-by: Andrew F. Davis <afd@ti.com>
---
 sound/soc/codecs/tlv320aic31xx.h | 460 +++++++++++++++++----------------------
 1 file changed, 203 insertions(+), 257 deletions(-)
 rewrite sound/soc/codecs/tlv320aic31xx.h (80%)

diff --git a/sound/soc/codecs/tlv320aic31xx.h b/sound/soc/codecs/tlv320aic31xx.h
dissimilarity index 80%
index 6efea0485392..15ac7cba86fe 100644
--- a/sound/soc/codecs/tlv320aic31xx.h
+++ b/sound/soc/codecs/tlv320aic31xx.h
@@ -1,257 +1,203 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * ALSA SoC TLV320AIC31xx CODEC Driver Definitions
- *
- * Copyright (C) 2014-2017 Texas Instruments Incorporated - http://www.ti.com/
- */
-
-#ifndef _TLV320AIC31XX_H
-#define _TLV320AIC31XX_H
-
-#define AIC31XX_RATES	SNDRV_PCM_RATE_8000_192000
-
-#define AIC31XX_FORMATS	(SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE \
-			 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_LE \
-			 | SNDRV_PCM_FMTBIT_S32_LE)
-
-
-#define AIC31XX_STEREO_CLASS_D_BIT	0x1
-#define AIC31XX_MINIDSP_BIT		0x2
-#define DAC31XX_BIT			0x4
-
-enum aic31xx_type {
-	AIC3100	= 0,
-	AIC3110 = AIC31XX_STEREO_CLASS_D_BIT,
-	AIC3120 = AIC31XX_MINIDSP_BIT,
-	AIC3111 = (AIC31XX_STEREO_CLASS_D_BIT | AIC31XX_MINIDSP_BIT),
-	DAC3100 = DAC31XX_BIT,
-	DAC3101 = DAC31XX_BIT | AIC31XX_STEREO_CLASS_D_BIT,
-};
-
-struct aic31xx_pdata {
-	enum aic31xx_type codec_type;
-	unsigned int gpio_reset;
-	int micbias_vg;
-};
-
-#define AIC31XX_REG(page, reg)	((page * 128) + reg)
-
-/* Page Control Register */
-#define AIC31XX_PAGECTL		AIC31XX_REG(0, 0)
-
-/* Page 0 Registers */
-/* Software reset register */
-#define AIC31XX_RESET		AIC31XX_REG(0, 1)
-/* OT FLAG register */
-#define AIC31XX_OT_FLAG		AIC31XX_REG(0, 3)
-/* Clock clock Gen muxing, Multiplexers*/
-#define AIC31XX_CLKMUX		AIC31XX_REG(0, 4)
-/* PLL P and R-VAL register */
-#define AIC31XX_PLLPR		AIC31XX_REG(0, 5)
-/* PLL J-VAL register */
-#define AIC31XX_PLLJ		AIC31XX_REG(0, 6)
-/* PLL D-VAL MSB register */
-#define AIC31XX_PLLDMSB		AIC31XX_REG(0, 7)
-/* PLL D-VAL LSB register */
-#define AIC31XX_PLLDLSB		AIC31XX_REG(0, 8)
-/* DAC NDAC_VAL register*/
-#define AIC31XX_NDAC		AIC31XX_REG(0, 11)
-/* DAC MDAC_VAL register */
-#define AIC31XX_MDAC		AIC31XX_REG(0, 12)
-/* DAC OSR setting register 1, MSB value */
-#define AIC31XX_DOSRMSB		AIC31XX_REG(0, 13)
-/* DAC OSR setting register 2, LSB value */
-#define AIC31XX_DOSRLSB		AIC31XX_REG(0, 14)
-#define AIC31XX_MINI_DSP_INPOL	AIC31XX_REG(0, 16)
-/* Clock setting register 8, PLL */
-#define AIC31XX_NADC		AIC31XX_REG(0, 18)
-/* Clock setting register 9, PLL */
-#define AIC31XX_MADC		AIC31XX_REG(0, 19)
-/* ADC Oversampling (AOSR) Register */
-#define AIC31XX_AOSR		AIC31XX_REG(0, 20)
-/* Clock setting register 9, Multiplexers */
-#define AIC31XX_CLKOUTMUX	AIC31XX_REG(0, 25)
-/* Clock setting register 10, CLOCKOUT M divider value */
-#define AIC31XX_CLKOUTMVAL	AIC31XX_REG(0, 26)
-/* Audio Interface Setting Register 1 */
-#define AIC31XX_IFACE1		AIC31XX_REG(0, 27)
-/* Audio Data Slot Offset Programming */
-#define AIC31XX_DATA_OFFSET	AIC31XX_REG(0, 28)
-/* Audio Interface Setting Register 2 */
-#define AIC31XX_IFACE2		AIC31XX_REG(0, 29)
-/* Clock setting register 11, BCLK N Divider */
-#define AIC31XX_BCLKN		AIC31XX_REG(0, 30)
-/* Audio Interface Setting Register 3, Secondary Audio Interface */
-#define AIC31XX_IFACESEC1	AIC31XX_REG(0, 31)
-/* Audio Interface Setting Register 4 */
-#define AIC31XX_IFACESEC2	AIC31XX_REG(0, 32)
-/* Audio Interface Setting Register 5 */
-#define AIC31XX_IFACESEC3	AIC31XX_REG(0, 33)
-/* I2C Bus Condition */
-#define AIC31XX_I2C		AIC31XX_REG(0, 34)
-/* ADC FLAG */
-#define AIC31XX_ADCFLAG		AIC31XX_REG(0, 36)
-/* DAC Flag Registers */
-#define AIC31XX_DACFLAG1	AIC31XX_REG(0, 37)
-#define AIC31XX_DACFLAG2	AIC31XX_REG(0, 38)
-/* Sticky Interrupt flag (overflow) */
-#define AIC31XX_OFFLAG		AIC31XX_REG(0, 39)
-/* Sticy DAC Interrupt flags */
-#define AIC31XX_INTRDACFLAG	AIC31XX_REG(0, 44)
-/* Sticy ADC Interrupt flags */
-#define AIC31XX_INTRADCFLAG	AIC31XX_REG(0, 45)
-/* DAC Interrupt flags 2 */
-#define AIC31XX_INTRDACFLAG2	AIC31XX_REG(0, 46)
-/* ADC Interrupt flags 2 */
-#define AIC31XX_INTRADCFLAG2	AIC31XX_REG(0, 47)
-/* INT1 interrupt control */
-#define AIC31XX_INT1CTRL	AIC31XX_REG(0, 48)
-/* INT2 interrupt control */
-#define AIC31XX_INT2CTRL	AIC31XX_REG(0, 49)
-/* GPIO1 control */
-#define AIC31XX_GPIO1		AIC31XX_REG(0, 51)
-
-#define AIC31XX_DACPRB		AIC31XX_REG(0, 60)
-/* ADC Instruction Set Register */
-#define AIC31XX_ADCPRB		AIC31XX_REG(0, 61)
-/* DAC channel setup register */
-#define AIC31XX_DACSETUP	AIC31XX_REG(0, 63)
-/* DAC Mute and volume control register */
-#define AIC31XX_DACMUTE		AIC31XX_REG(0, 64)
-/* Left DAC channel digital volume control */
-#define AIC31XX_LDACVOL		AIC31XX_REG(0, 65)
-/* Right DAC channel digital volume control */
-#define AIC31XX_RDACVOL		AIC31XX_REG(0, 66)
-/* Headset detection */
-#define AIC31XX_HSDETECT	AIC31XX_REG(0, 67)
-/* ADC Digital Mic */
-#define AIC31XX_ADCSETUP	AIC31XX_REG(0, 81)
-/* ADC Digital Volume Control Fine Adjust */
-#define AIC31XX_ADCFGA		AIC31XX_REG(0, 82)
-/* ADC Digital Volume Control Coarse Adjust */
-#define AIC31XX_ADCVOL		AIC31XX_REG(0, 83)
-
-
-/* Page 1 Registers */
-/* Headphone drivers */
-#define AIC31XX_HPDRIVER	AIC31XX_REG(1, 31)
-/* Class-D Speakear Amplifier */
-#define AIC31XX_SPKAMP		AIC31XX_REG(1, 32)
-/* HP Output Drivers POP Removal Settings */
-#define AIC31XX_HPPOP		AIC31XX_REG(1, 33)
-/* Output Driver PGA Ramp-Down Period Control */
-#define AIC31XX_SPPGARAMP	AIC31XX_REG(1, 34)
-/* DAC_L and DAC_R Output Mixer Routing */
-#define AIC31XX_DACMIXERROUTE	AIC31XX_REG(1, 35)
-/* Left Analog Vol to HPL */
-#define AIC31XX_LANALOGHPL	AIC31XX_REG(1, 36)
-/* Right Analog Vol to HPR */
-#define AIC31XX_RANALOGHPR	AIC31XX_REG(1, 37)
-/* Left Analog Vol to SPL */
-#define AIC31XX_LANALOGSPL	AIC31XX_REG(1, 38)
-/* Right Analog Vol to SPR */
-#define AIC31XX_RANALOGSPR	AIC31XX_REG(1, 39)
-/* HPL Driver */
-#define AIC31XX_HPLGAIN		AIC31XX_REG(1, 40)
-/* HPR Driver */
-#define AIC31XX_HPRGAIN		AIC31XX_REG(1, 41)
-/* SPL Driver */
-#define AIC31XX_SPLGAIN		AIC31XX_REG(1, 42)
-/* SPR Driver */
-#define AIC31XX_SPRGAIN		AIC31XX_REG(1, 43)
-/* HP Driver Control */
-#define AIC31XX_HPCONTROL	AIC31XX_REG(1, 44)
-/* MIC Bias Control */
-#define AIC31XX_MICBIAS		AIC31XX_REG(1, 46)
-/* MIC PGA*/
-#define AIC31XX_MICPGA		AIC31XX_REG(1, 47)
-/* Delta-Sigma Mono ADC Channel Fine-Gain Input Selection for P-Terminal */
-#define AIC31XX_MICPGAPI	AIC31XX_REG(1, 48)
-/* ADC Input Selection for M-Terminal */
-#define AIC31XX_MICPGAMI	AIC31XX_REG(1, 49)
-/* Input CM Settings */
-#define AIC31XX_MICPGACM	AIC31XX_REG(1, 50)
-
-/* Bits, masks and shifts */
-
-/* AIC31XX_CLKMUX */
-#define AIC31XX_PLL_CLKIN_MASK			0x0c
-#define AIC31XX_PLL_CLKIN_SHIFT			2
-#define AIC31XX_PLL_CLKIN_MCLK			0
-#define AIC31XX_CODEC_CLKIN_MASK		0x03
-#define AIC31XX_CODEC_CLKIN_SHIFT		0
-#define AIC31XX_CODEC_CLKIN_PLL			3
-#define AIC31XX_CODEC_CLKIN_BCLK		1
-
-/* AIC31XX_PLLPR, AIC31XX_NDAC, AIC31XX_MDAC, AIC31XX_NADC, AIC31XX_MADC,
-   AIC31XX_BCLKN */
-#define AIC31XX_PLL_MASK		0x7f
-#define AIC31XX_PM_MASK			0x80
-
-/* AIC31XX_IFACE1 */
-#define AIC31XX_WORD_LEN_16BITS		0x00
-#define AIC31XX_WORD_LEN_20BITS		0x01
-#define AIC31XX_WORD_LEN_24BITS		0x02
-#define AIC31XX_WORD_LEN_32BITS		0x03
-#define AIC31XX_IFACE1_DATALEN_MASK	0x30
-#define AIC31XX_IFACE1_DATALEN_SHIFT	(4)
-#define AIC31XX_IFACE1_DATATYPE_MASK	0xC0
-#define AIC31XX_IFACE1_DATATYPE_SHIFT	(6)
-#define AIC31XX_I2S_MODE		0x00
-#define AIC31XX_DSP_MODE		0x01
-#define AIC31XX_RIGHT_JUSTIFIED_MODE	0x02
-#define AIC31XX_LEFT_JUSTIFIED_MODE	0x03
-#define AIC31XX_IFACE1_MASTER_MASK	0x0C
-#define AIC31XX_BCLK_MASTER		0x08
-#define AIC31XX_WCLK_MASTER		0x04
-
-/* AIC31XX_DATA_OFFSET */
-#define AIC31XX_DATA_OFFSET_MASK	0xFF
-
-/* AIC31XX_IFACE2 */
-#define AIC31XX_BCLKINV_MASK		0x08
-#define AIC31XX_BDIVCLK_MASK		0x03
-#define AIC31XX_DAC2BCLK		0x00
-#define AIC31XX_DACMOD2BCLK		0x01
-#define AIC31XX_ADC2BCLK		0x02
-#define AIC31XX_ADCMOD2BCLK		0x03
-
-/* AIC31XX_ADCFLAG */
-#define AIC31XX_ADCPWRSTATUS_MASK		0x40
-
-/* AIC31XX_DACFLAG1 */
-#define AIC31XX_LDACPWRSTATUS_MASK		0x80
-#define AIC31XX_RDACPWRSTATUS_MASK		0x08
-#define AIC31XX_HPLDRVPWRSTATUS_MASK		0x20
-#define AIC31XX_HPRDRVPWRSTATUS_MASK		0x02
-#define AIC31XX_SPLDRVPWRSTATUS_MASK		0x10
-#define AIC31XX_SPRDRVPWRSTATUS_MASK		0x01
-
-/* AIC31XX_INTRDACFLAG */
-#define AIC31XX_HPSCDETECT_MASK			0x80
-#define AIC31XX_BUTTONPRESS_MASK		0x20
-#define AIC31XX_HSPLUG_MASK			0x10
-#define AIC31XX_LDRCTHRES_MASK			0x08
-#define AIC31XX_RDRCTHRES_MASK			0x04
-#define AIC31XX_DACSINT_MASK			0x02
-#define AIC31XX_DACAINT_MASK			0x01
-
-/* AIC31XX_INT1CTRL */
-#define AIC31XX_HSPLUGDET_MASK			0x80
-#define AIC31XX_BUTTONPRESSDET_MASK		0x40
-#define AIC31XX_DRCTHRES_MASK			0x20
-#define AIC31XX_AGCNOISE_MASK			0x10
-#define AIC31XX_OC_MASK				0x08
-#define AIC31XX_ENGINE_MASK			0x04
-
-/* AIC31XX_DACSETUP */
-#define AIC31XX_SOFTSTEP_MASK			0x03
-
-/* AIC31XX_DACMUTE */
-#define AIC31XX_DACMUTE_MASK			0x0C
-
-/* AIC31XX_MICBIAS */
-#define AIC31XX_MICBIAS_MASK			0x03
-#define AIC31XX_MICBIAS_SHIFT			0
-
-#endif	/* _TLV320AIC31XX_H */
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * ALSA SoC TLV320AIC31xx CODEC Driver Definitions
+ *
+ * Copyright (C) 2014-2017 Texas Instruments Incorporated - http://www.ti.com/
+ */
+
+#ifndef _TLV320AIC31XX_H
+#define _TLV320AIC31XX_H
+
+#define AIC31XX_RATES	SNDRV_PCM_RATE_8000_192000
+
+#define AIC31XX_FORMATS	(SNDRV_PCM_FMTBIT_S16_LE | \
+			 SNDRV_PCM_FMTBIT_S20_3LE | \
+			 SNDRV_PCM_FMTBIT_S24_3LE | \
+			 SNDRV_PCM_FMTBIT_S24_LE | \
+			 SNDRV_PCM_FMTBIT_S32_LE)
+
+#define AIC31XX_STEREO_CLASS_D_BIT	BIT(1)
+#define AIC31XX_MINIDSP_BIT		BIT(2)
+#define DAC31XX_BIT			BIT(3)
+
+enum aic31xx_type {
+	AIC3100	= 0,
+	AIC3110 = AIC31XX_STEREO_CLASS_D_BIT,
+	AIC3120 = AIC31XX_MINIDSP_BIT,
+	AIC3111 = AIC31XX_STEREO_CLASS_D_BIT | AIC31XX_MINIDSP_BIT,
+	DAC3100 = DAC31XX_BIT,
+	DAC3101 = DAC31XX_BIT | AIC31XX_STEREO_CLASS_D_BIT,
+};
+
+struct aic31xx_pdata {
+	enum aic31xx_type codec_type;
+	unsigned int gpio_reset;
+	int micbias_vg;
+};
+
+#define AIC31XX_REG(page, reg)	((page * 128) + reg)
+
+#define AIC31XX_PAGECTL		AIC31XX_REG(0, 0) /* Page Control Register */
+
+/* Page 0 Registers */
+#define AIC31XX_RESET		AIC31XX_REG(0, 1) /* Software reset register */
+#define AIC31XX_OT_FLAG		AIC31XX_REG(0, 3) /* OT FLAG register */
+#define AIC31XX_CLKMUX		AIC31XX_REG(0, 4) /* Clock clock Gen muxing, Multiplexers*/
+#define AIC31XX_PLLPR		AIC31XX_REG(0, 5) /* PLL P and R-VAL register */
+#define AIC31XX_PLLJ		AIC31XX_REG(0, 6) /* PLL J-VAL register */
+#define AIC31XX_PLLDMSB		AIC31XX_REG(0, 7) /* PLL D-VAL MSB register */
+#define AIC31XX_PLLDLSB		AIC31XX_REG(0, 8) /* PLL D-VAL LSB register */
+#define AIC31XX_NDAC		AIC31XX_REG(0, 11) /* DAC NDAC_VAL register*/
+#define AIC31XX_MDAC		AIC31XX_REG(0, 12) /* DAC MDAC_VAL register */
+#define AIC31XX_DOSRMSB		AIC31XX_REG(0, 13) /* DAC OSR setting register 1, MSB value */
+#define AIC31XX_DOSRLSB		AIC31XX_REG(0, 14) /* DAC OSR setting register 2, LSB value */
+#define AIC31XX_MINI_DSP_INPOL	AIC31XX_REG(0, 16)
+#define AIC31XX_NADC		AIC31XX_REG(0, 18) /* Clock setting register 8, PLL */
+#define AIC31XX_MADC		AIC31XX_REG(0, 19) /* Clock setting register 9, PLL */
+#define AIC31XX_AOSR		AIC31XX_REG(0, 20) /* ADC Oversampling (AOSR) Register */
+#define AIC31XX_CLKOUTMUX	AIC31XX_REG(0, 25) /* Clock setting register 9, Multiplexers */
+#define AIC31XX_CLKOUTMVAL	AIC31XX_REG(0, 26) /* Clock setting register 10, CLOCKOUT M divider value */
+#define AIC31XX_IFACE1		AIC31XX_REG(0, 27) /* Audio Interface Setting Register 1 */
+#define AIC31XX_DATA_OFFSET	AIC31XX_REG(0, 28) /* Audio Data Slot Offset Programming */
+#define AIC31XX_IFACE2		AIC31XX_REG(0, 29) /* Audio Interface Setting Register 2 */
+#define AIC31XX_BCLKN		AIC31XX_REG(0, 30) /* Clock setting register 11, BCLK N Divider */
+#define AIC31XX_IFACESEC1	AIC31XX_REG(0, 31) /* Audio Interface Setting Register 3, Secondary Audio Interface */
+#define AIC31XX_IFACESEC2	AIC31XX_REG(0, 32) /* Audio Interface Setting Register 4 */
+#define AIC31XX_IFACESEC3	AIC31XX_REG(0, 33) /* Audio Interface Setting Register 5 */
+#define AIC31XX_I2C		AIC31XX_REG(0, 34) /* I2C Bus Condition */
+#define AIC31XX_ADCFLAG		AIC31XX_REG(0, 36) /* ADC FLAG */
+#define AIC31XX_DACFLAG1	AIC31XX_REG(0, 37) /* DAC Flag Registers */
+#define AIC31XX_DACFLAG2	AIC31XX_REG(0, 38)
+#define AIC31XX_OFFLAG		AIC31XX_REG(0, 39) /* Sticky Interrupt flag (overflow) */
+#define AIC31XX_INTRDACFLAG	AIC31XX_REG(0, 44) /* Sticy DAC Interrupt flags */
+#define AIC31XX_INTRADCFLAG	AIC31XX_REG(0, 45) /* Sticy ADC Interrupt flags */
+#define AIC31XX_INTRDACFLAG2	AIC31XX_REG(0, 46) /* DAC Interrupt flags 2 */
+#define AIC31XX_INTRADCFLAG2	AIC31XX_REG(0, 47) /* ADC Interrupt flags 2 */
+#define AIC31XX_INT1CTRL	AIC31XX_REG(0, 48) /* INT1 interrupt control */
+#define AIC31XX_INT2CTRL	AIC31XX_REG(0, 49) /* INT2 interrupt control */
+#define AIC31XX_GPIO1		AIC31XX_REG(0, 51) /* GPIO1 control */
+#define AIC31XX_DACPRB		AIC31XX_REG(0, 60)
+#define AIC31XX_ADCPRB		AIC31XX_REG(0, 61) /* ADC Instruction Set Register */
+#define AIC31XX_DACSETUP	AIC31XX_REG(0, 63) /* DAC channel setup register */
+#define AIC31XX_DACMUTE		AIC31XX_REG(0, 64) /* DAC Mute and volume control register */
+#define AIC31XX_LDACVOL		AIC31XX_REG(0, 65) /* Left DAC channel digital volume control */
+#define AIC31XX_RDACVOL		AIC31XX_REG(0, 66) /* Right DAC channel digital volume control */
+#define AIC31XX_HSDETECT	AIC31XX_REG(0, 67) /* Headset detection */
+#define AIC31XX_ADCSETUP	AIC31XX_REG(0, 81) /* ADC Digital Mic */
+#define AIC31XX_ADCFGA		AIC31XX_REG(0, 82) /* ADC Digital Volume Control Fine Adjust */
+#define AIC31XX_ADCVOL		AIC31XX_REG(0, 83) /* ADC Digital Volume Control Coarse Adjust */
+
+/* Page 1 Registers */
+#define AIC31XX_HPDRIVER	AIC31XX_REG(1, 31) /* Headphone drivers */
+#define AIC31XX_SPKAMP		AIC31XX_REG(1, 32) /* Class-D Speakear Amplifier */
+#define AIC31XX_HPPOP		AIC31XX_REG(1, 33) /* HP Output Drivers POP Removal Settings */
+#define AIC31XX_SPPGARAMP	AIC31XX_REG(1, 34) /* Output Driver PGA Ramp-Down Period Control */
+#define AIC31XX_DACMIXERROUTE	AIC31XX_REG(1, 35) /* DAC_L and DAC_R Output Mixer Routing */
+#define AIC31XX_LANALOGHPL	AIC31XX_REG(1, 36) /* Left Analog Vol to HPL */
+#define AIC31XX_RANALOGHPR	AIC31XX_REG(1, 37) /* Right Analog Vol to HPR */
+#define AIC31XX_LANALOGSPL	AIC31XX_REG(1, 38) /* Left Analog Vol to SPL */
+#define AIC31XX_RANALOGSPR	AIC31XX_REG(1, 39) /* Right Analog Vol to SPR */
+#define AIC31XX_HPLGAIN		AIC31XX_REG(1, 40) /* HPL Driver */
+#define AIC31XX_HPRGAIN		AIC31XX_REG(1, 41) /* HPR Driver */
+#define AIC31XX_SPLGAIN		AIC31XX_REG(1, 42) /* SPL Driver */
+#define AIC31XX_SPRGAIN		AIC31XX_REG(1, 43) /* SPR Driver */
+#define AIC31XX_HPCONTROL	AIC31XX_REG(1, 44) /* HP Driver Control */
+#define AIC31XX_MICBIAS		AIC31XX_REG(1, 46) /* MIC Bias Control */
+#define AIC31XX_MICPGA		AIC31XX_REG(1, 47) /* MIC PGA*/
+#define AIC31XX_MICPGAPI	AIC31XX_REG(1, 48) /* Delta-Sigma Mono ADC Channel Fine-Gain Input Selection for P-Terminal */
+#define AIC31XX_MICPGAMI	AIC31XX_REG(1, 49) /* ADC Input Selection for M-Terminal */
+#define AIC31XX_MICPGACM	AIC31XX_REG(1, 50) /* Input CM Settings */
+
+/* Bits, masks, and shifts */
+
+/* AIC31XX_CLKMUX */
+#define AIC31XX_PLL_CLKIN_MASK		GENMASK(3, 2)
+#define AIC31XX_PLL_CLKIN_SHIFT		(2)
+#define AIC31XX_PLL_CLKIN_MCLK		0x00
+#define AIC31XX_PLL_CLKIN_BCKL		0x01
+#define AIC31XX_PLL_CLKIN_GPIO1		0x02
+#define AIC31XX_PLL_CLKIN_DIN		0x03
+#define AIC31XX_CODEC_CLKIN_MASK	GENMASK(1, 0)
+#define AIC31XX_CODEC_CLKIN_SHIFT	(0)
+#define AIC31XX_CODEC_CLKIN_MCLK	0x00
+#define AIC31XX_CODEC_CLKIN_BCLK	0x01
+#define AIC31XX_CODEC_CLKIN_GPIO1	0x02
+#define AIC31XX_CODEC_CLKIN_PLL		0x03
+
+/* AIC31XX_PLLPR */
+/* AIC31XX_NDAC */
+/* AIC31XX_MDAC */
+/* AIC31XX_NADC */
+/* AIC31XX_MADC */
+/* AIC31XX_BCLKN */
+#define AIC31XX_PLL_MASK		GENMASK(6, 0)
+#define AIC31XX_PM_MASK			BIT(7)
+
+/* AIC31XX_IFACE1 */
+#define AIC31XX_IFACE1_DATATYPE_MASK	GENMASK(7, 6)
+#define AIC31XX_IFACE1_DATATYPE_SHIFT	(6)
+#define AIC31XX_I2S_MODE		0x00
+#define AIC31XX_DSP_MODE		0x01
+#define AIC31XX_RIGHT_JUSTIFIED_MODE	0x02
+#define AIC31XX_LEFT_JUSTIFIED_MODE	0x03
+#define AIC31XX_IFACE1_DATALEN_MASK	GENMASK(5, 4)
+#define AIC31XX_IFACE1_DATALEN_SHIFT	(4)
+#define AIC31XX_WORD_LEN_16BITS		0x00
+#define AIC31XX_WORD_LEN_20BITS		0x01
+#define AIC31XX_WORD_LEN_24BITS		0x02
+#define AIC31XX_WORD_LEN_32BITS		0x03
+#define AIC31XX_IFACE1_MASTER_MASK	GENMASK(3, 2)
+#define AIC31XX_BCLK_MASTER		BIT(2)
+#define AIC31XX_WCLK_MASTER		BIT(3)
+
+/* AIC31XX_DATA_OFFSET */
+#define AIC31XX_DATA_OFFSET_MASK	GENMASK(7, 0)
+
+/* AIC31XX_IFACE2 */
+#define AIC31XX_BCLKINV_MASK		BIT(3)
+#define AIC31XX_BDIVCLK_MASK		GENMASK(1, 0)
+#define AIC31XX_DAC2BCLK		0x00
+#define AIC31XX_DACMOD2BCLK		0x01
+#define AIC31XX_ADC2BCLK		0x02
+#define AIC31XX_ADCMOD2BCLK		0x03
+
+/* AIC31XX_ADCFLAG */
+#define AIC31XX_ADCPWRSTATUS_MASK	BIT(6)
+
+/* AIC31XX_DACFLAG1 */
+#define AIC31XX_LDACPWRSTATUS_MASK	BIT(7)
+#define AIC31XX_HPLDRVPWRSTATUS_MASK	BIT(5)
+#define AIC31XX_SPLDRVPWRSTATUS_MASK	BIT(4)
+#define AIC31XX_RDACPWRSTATUS_MASK	BIT(3)
+#define AIC31XX_HPRDRVPWRSTATUS_MASK	BIT(1)
+#define AIC31XX_SPRDRVPWRSTATUS_MASK	BIT(0)
+
+/* AIC31XX_INTRDACFLAG */
+#define AIC31XX_HPLSCDETECT		BIT(7)
+#define AIC31XX_HPRSCDETECT		BIT(6)
+#define AIC31XX_BUTTONPRESS		BIT(5)
+#define AIC31XX_HSPLUG			BIT(4)
+#define AIC31XX_LDRCTHRES		BIT(3)
+#define AIC31XX_RDRCTHRES		BIT(2)
+#define AIC31XX_DACSINT			BIT(1)
+#define AIC31XX_DACAINT			BIT(0)
+
+/* AIC31XX_INT1CTRL */
+#define AIC31XX_HSPLUGDET		BIT(7)
+#define AIC31XX_BUTTONPRESSDET		BIT(6)
+#define AIC31XX_DRCTHRES		BIT(5)
+#define AIC31XX_AGCNOISE		BIT(4)
+#define AIC31XX_SC			BIT(3)
+#define AIC31XX_ENGINE			BIT(2)
+
+/* AIC31XX_DACSETUP */
+#define AIC31XX_SOFTSTEP_MASK		GENMASK(1, 0)
+
+/* AIC31XX_DACMUTE */
+#define AIC31XX_DACMUTE_MASK		GENMASK(3, 2)
+
+/* AIC31XX_MICBIAS */
+#define AIC31XX_MICBIAS_MASK		GENMASK(1, 0)
+#define AIC31XX_MICBIAS_SHIFT		0
+
+#endif	/* _TLV320AIC31XX_H */
-- 
2.15.0

[PATCH v2 07/19] ASoC: tlv320aic31xx: Merge init function into probe

[Andrew F. Davis]

The function aic31xx_device_init() is only called from probe and
does nothing that logically shouldn't be in probe, remove this
unneeded function call and move its code into probe where it was called.

Signed-off-by: Andrew F. Davis <afd@ti.com>
---
 sound/soc/codecs/tlv320aic31xx.c | 55 ++++++++++++++++------------------------
 1 file changed, 22 insertions(+), 33 deletions(-)

diff --git a/sound/soc/codecs/tlv320aic31xx.c b/sound/soc/codecs/tlv320aic31xx.c
index 07c014501e5e..c84febd991a0 100644
--- a/sound/soc/codecs/tlv320aic31xx.c
+++ b/sound/soc/codecs/tlv320aic31xx.c
@@ -1302,9 +1302,29 @@ static const struct acpi_device_id aic31xx_acpi_match[] = {
 MODULE_DEVICE_TABLE(acpi, aic31xx_acpi_match);
 #endif
 
-static int aic31xx_device_init(struct aic31xx_priv *aic31xx)
+static int aic31xx_i2c_probe(struct i2c_client *i2c,
+			     const struct i2c_device_id *id)
 {
-	int ret, i;
+	struct aic31xx_priv *aic31xx;
+	int i, ret;
+
+	dev_dbg(&i2c->dev, "## %s: %s codec_type = %d\n", __func__,
+		id->name, (int)id->driver_data);
+
+	aic31xx = devm_kzalloc(&i2c->dev, sizeof(*aic31xx), GFP_KERNEL);
+	if (!aic31xx)
+		return -ENOMEM;
+
+	aic31xx->regmap = devm_regmap_init_i2c(i2c, &aic31xx_i2c_regmap);
+	if (IS_ERR(aic31xx->regmap)) {
+		ret = PTR_ERR(aic31xx->regmap);
+		dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
+			ret);
+		return ret;
+	}
+	aic31xx->dev = &i2c->dev;
+
+	aic31xx->pdata.codec_type = id->driver_data;
 
 	dev_set_drvdata(aic31xx->dev, aic31xx);
 
@@ -1336,37 +1356,6 @@ static int aic31xx_device_init(struct aic31xx_priv *aic31xx)
 		return ret;
 	}
 
-	return 0;
-}
-
-static int aic31xx_i2c_probe(struct i2c_client *i2c,
-			     const struct i2c_device_id *id)
-{
-	struct aic31xx_priv *aic31xx;
-	int ret;
-
-	dev_dbg(&i2c->dev, "## %s: %s codec_type = %d\n", __func__,
-		id->name, (int) id->driver_data);
-
-	aic31xx = devm_kzalloc(&i2c->dev, sizeof(*aic31xx), GFP_KERNEL);
-	if (!aic31xx)
-		return -ENOMEM;
-
-	aic31xx->regmap = devm_regmap_init_i2c(i2c, &aic31xx_i2c_regmap);
-	if (IS_ERR(aic31xx->regmap)) {
-		ret = PTR_ERR(aic31xx->regmap);
-		dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
-			ret);
-		return ret;
-	}
-	aic31xx->dev = &i2c->dev;
-
-	aic31xx->pdata.codec_type = id->driver_data;
-
-	ret = aic31xx_device_init(aic31xx);
-	if (ret)
-		return ret;
-
 	if (aic31xx->pdata.codec_type & DAC31XX_BIT)
 		return snd_soc_register_codec(&i2c->dev,
 				&soc_codec_driver_aic31xx,
-- 
2.15.0

[PATCH v2 08/19] ASoC: tlv320aic31xx: Switch GPIO handling to use gpiod_* API

[Andrew F. Davis]

Move to using newer gpiod_* GPIO handling functions. This simplifies
the code and eases dropping platform data in the next patch. Also
remember GPIO are active low, so set "1" to reset.

Signed-off-by: Andrew F. Davis <afd@ti.com>
---
 sound/soc/codecs/tlv320aic31xx.c | 23 ++++++++++-------------
 1 file changed, 10 insertions(+), 13 deletions(-)

diff --git a/sound/soc/codecs/tlv320aic31xx.c b/sound/soc/codecs/tlv320aic31xx.c
index c84febd991a0..ab03a19f6aaa 100644
--- a/sound/soc/codecs/tlv320aic31xx.c
+++ b/sound/soc/codecs/tlv320aic31xx.c
@@ -157,6 +157,7 @@ struct aic31xx_priv {
 	u8 i2c_regs_status;
 	struct device *dev;
 	struct regmap *regmap;
+	struct gpio_desc *gpio_reset;
 	struct aic31xx_pdata pdata;
 	struct regulator_bulk_data supplies[AIC31XX_NUM_SUPPLIES];
 	struct aic31xx_disable_nb disable_nb[AIC31XX_NUM_SUPPLIES];
@@ -1020,8 +1021,8 @@ static int aic31xx_regulator_event(struct notifier_block *nb,
 		 * Put codec to reset and as at least one of the
 		 * supplies was disabled.
 		 */
-		if (gpio_is_valid(aic31xx->pdata.gpio_reset))
-			gpio_set_value(aic31xx->pdata.gpio_reset, 0);
+		if (aic31xx->gpio_reset)
+			gpiod_set_value(aic31xx->gpio_reset, 1);
 
 		regcache_mark_dirty(aic31xx->regmap);
 		dev_dbg(aic31xx->dev, "## %s: DISABLE received\n", __func__);
@@ -1073,8 +1074,8 @@ static int aic31xx_power_on(struct snd_soc_codec *codec)
 	if (ret)
 		return ret;
 
-	if (gpio_is_valid(aic31xx->pdata.gpio_reset)) {
-		gpio_set_value(aic31xx->pdata.gpio_reset, 1);
+	if (aic31xx->gpio_reset) {
+		gpiod_set_value(aic31xx->gpio_reset, 0);
 		udelay(100);
 	}
 	regcache_cache_only(aic31xx->regmap, false);
@@ -1334,15 +1335,11 @@ static int aic31xx_i2c_probe(struct i2c_client *i2c,
 	else if (aic31xx->dev->of_node)
 		aic31xx_pdata_from_of(aic31xx);
 
-	if (aic31xx->pdata.gpio_reset) {
-		ret = devm_gpio_request_one(aic31xx->dev,
-					    aic31xx->pdata.gpio_reset,
-					    GPIOF_OUT_INIT_HIGH,
-					    "aic31xx-reset-pin");
-		if (ret < 0) {
-			dev_err(aic31xx->dev, "not able to acquire gpio\n");
-			return ret;
-		}
+	aic31xx->gpio_reset = devm_gpiod_get_optional(aic31xx->dev, "reset",
+						      GPIOD_OUT_LOW);
+	if (IS_ERR(aic31xx->gpio_reset)) {
+		dev_err(aic31xx->dev, "not able to acquire gpio\n");
+		return PTR_ERR(aic31xx->gpio_reset);
 	}
 
 	for (i = 0; i < ARRAY_SIZE(aic31xx->supplies); i++)
-- 
2.15.0

[PATCH v2 09/19] ASoC: tlv320aic31xx: Remove platform data

[Andrew F. Davis]

Platform data is not used by anyone (at least in upstream) so
drop this data and switch to using fwnode(DT/ACPI) only.

Signed-off-by: Andrew F. Davis <afd@ti.com>
---
 sound/soc/codecs/tlv320aic31xx.c | 72 +++++++++++++---------------------------
 sound/soc/codecs/tlv320aic31xx.h |  6 ----
 2 files changed, 23 insertions(+), 55 deletions(-)

diff --git a/sound/soc/codecs/tlv320aic31xx.c b/sound/soc/codecs/tlv320aic31xx.c
index ab03a19f6aaa..0e00421d363b 100644
--- a/sound/soc/codecs/tlv320aic31xx.c
+++ b/sound/soc/codecs/tlv320aic31xx.c
@@ -157,8 +157,9 @@ struct aic31xx_priv {
 	u8 i2c_regs_status;
 	struct device *dev;
 	struct regmap *regmap;
+	enum aic31xx_type codec_type;
 	struct gpio_desc *gpio_reset;
-	struct aic31xx_pdata pdata;
+	int micbias_vg;
 	struct regulator_bulk_data supplies[AIC31XX_NUM_SUPPLIES];
 	struct aic31xx_disable_nb disable_nb[AIC31XX_NUM_SUPPLIES];
 	unsigned int sysclk;
@@ -450,7 +451,7 @@ static int mic_bias_event(struct snd_soc_dapm_widget *w,
 		/* change mic bias voltage to user defined */
 		snd_soc_update_bits(codec, AIC31XX_MICBIAS,
 				    AIC31XX_MICBIAS_MASK,
-				    aic31xx->pdata.micbias_vg <<
+				    aic31xx->micbias_vg <<
 				    AIC31XX_MICBIAS_SHIFT);
 		dev_dbg(codec->dev, "%s: turned on\n", __func__);
 		break;
@@ -673,14 +674,14 @@ static int aic31xx_add_controls(struct snd_soc_codec *codec)
 	int ret = 0;
 	struct aic31xx_priv *aic31xx = snd_soc_codec_get_drvdata(codec);
 
-	if (!(aic31xx->pdata.codec_type & DAC31XX_BIT))
+	if (!(aic31xx->codec_type & DAC31XX_BIT))
 		ret = snd_soc_add_codec_controls(
 			codec, aic31xx_snd_controls,
 			ARRAY_SIZE(aic31xx_snd_controls));
 	if (ret)
 		return ret;
 
-	if (aic31xx->pdata.codec_type & AIC31XX_STEREO_CLASS_D_BIT)
+	if (aic31xx->codec_type & AIC31XX_STEREO_CLASS_D_BIT)
 		ret = snd_soc_add_codec_controls(
 			codec, aic311x_snd_controls,
 			ARRAY_SIZE(aic311x_snd_controls));
@@ -698,7 +699,7 @@ static int aic31xx_add_widgets(struct snd_soc_codec *codec)
 	struct aic31xx_priv *aic31xx = snd_soc_codec_get_drvdata(codec);
 	int ret = 0;
 
-	if (aic31xx->pdata.codec_type & DAC31XX_BIT) {
+	if (aic31xx->codec_type & DAC31XX_BIT) {
 		ret = snd_soc_dapm_new_controls(
 			dapm, dac31xx_dapm_widgets,
 			ARRAY_SIZE(dac31xx_dapm_widgets));
@@ -722,7 +723,7 @@ static int aic31xx_add_widgets(struct snd_soc_codec *codec)
 			return ret;
 	}
 
-	if (aic31xx->pdata.codec_type & AIC31XX_STEREO_CLASS_D_BIT) {
+	if (aic31xx->codec_type & AIC31XX_STEREO_CLASS_D_BIT) {
 		ret = snd_soc_dapm_new_controls(
 			dapm, aic311x_dapm_widgets,
 			ARRAY_SIZE(aic311x_dapm_widgets));
@@ -1257,42 +1258,6 @@ static const struct of_device_id tlv320aic31xx_of_match[] = {
 	{},
 };
 MODULE_DEVICE_TABLE(of, tlv320aic31xx_of_match);
-
-static void aic31xx_pdata_from_of(struct aic31xx_priv *aic31xx)
-{
-	struct device_node *np = aic31xx->dev->of_node;
-	unsigned int value = MICBIAS_2_0V;
-	int ret;
-
-	of_property_read_u32(np, "ai31xx-micbias-vg", &value);
-	switch (value) {
-	case MICBIAS_2_0V:
-	case MICBIAS_2_5V:
-	case MICBIAS_AVDDV:
-		aic31xx->pdata.micbias_vg = value;
-		break;
-	default:
-		dev_err(aic31xx->dev,
-			"Bad ai31xx-micbias-vg value %d DT\n",
-			value);
-		aic31xx->pdata.micbias_vg = MICBIAS_2_0V;
-	}
-
-	ret = of_get_named_gpio(np, "reset-gpios", 0);
-	if (ret > 0) {
-		aic31xx->pdata.gpio_reset = ret;
-	} else {
-		ret = of_get_named_gpio(np, "gpio-reset", 0);
-		if (ret > 0) {
-			dev_warn(aic31xx->dev, "Using deprecated property \"gpio-reset\", please update your DT");
-			aic31xx->pdata.gpio_reset = ret;
-		}
-	}
-}
-#else /* CONFIG_OF */
-static void aic31xx_pdata_from_of(struct aic31xx_priv *aic31xx)
-{
-}
 #endif /* CONFIG_OF */
 
 #ifdef CONFIG_ACPI
@@ -1307,6 +1272,7 @@ static int aic31xx_i2c_probe(struct i2c_client *i2c,
 			     const struct i2c_device_id *id)
 {
 	struct aic31xx_priv *aic31xx;
+	unsigned int micbias_value = MICBIAS_2_0V;
 	int i, ret;
 
 	dev_dbg(&i2c->dev, "## %s: %s codec_type = %d\n", __func__,
@@ -1325,15 +1291,23 @@ static int aic31xx_i2c_probe(struct i2c_client *i2c,
 	}
 	aic31xx->dev = &i2c->dev;
 
-	aic31xx->pdata.codec_type = id->driver_data;
+	aic31xx->codec_type = id->driver_data;
 
 	dev_set_drvdata(aic31xx->dev, aic31xx);
 
-	if (dev_get_platdata(aic31xx->dev))
-		memcpy(&aic31xx->pdata, dev_get_platdata(aic31xx->dev),
-		       sizeof(aic31xx->pdata));
-	else if (aic31xx->dev->of_node)
-		aic31xx_pdata_from_of(aic31xx);
+	fwnode_property_read_u32(aic31xx->dev->fwnode, "ai31xx-micbias-vg",
+				 &micbias_value);
+	switch (micbias_value) {
+	case MICBIAS_2_0V:
+	case MICBIAS_2_5V:
+	case MICBIAS_AVDDV:
+		aic31xx->micbias_vg = micbias_value;
+		break;
+	default:
+		dev_err(aic31xx->dev, "Bad ai31xx-micbias-vg value %d in DT\n",
+			micbias_value);
+		aic31xx->micbias_vg = MICBIAS_2_0V;
+	}
 
 	aic31xx->gpio_reset = devm_gpiod_get_optional(aic31xx->dev, "reset",
 						      GPIOD_OUT_LOW);
@@ -1353,7 +1327,7 @@ static int aic31xx_i2c_probe(struct i2c_client *i2c,
 		return ret;
 	}
 
-	if (aic31xx->pdata.codec_type & DAC31XX_BIT)
+	if (aic31xx->codec_type & DAC31XX_BIT)
 		return snd_soc_register_codec(&i2c->dev,
 				&soc_codec_driver_aic31xx,
 				dac31xx_dai_driver,
diff --git a/sound/soc/codecs/tlv320aic31xx.h b/sound/soc/codecs/tlv320aic31xx.h
index 15ac7cba86fe..ab94e6a0c742 100644
--- a/sound/soc/codecs/tlv320aic31xx.h
+++ b/sound/soc/codecs/tlv320aic31xx.h
@@ -29,12 +29,6 @@ enum aic31xx_type {
 	DAC3101 = DAC31XX_BIT | AIC31XX_STEREO_CLASS_D_BIT,
 };
 
-struct aic31xx_pdata {
-	enum aic31xx_type codec_type;
-	unsigned int gpio_reset;
-	int micbias_vg;
-};
-
 #define AIC31XX_REG(page, reg)	((page * 128) + reg)
 
 #define AIC31XX_PAGECTL		AIC31XX_REG(0, 0) /* Page Control Register */
-- 
2.15.0

[PATCH v2 10/19] ASoC: tlv320aic31xx: Add MICBIAS off setting

[Andrew F. Davis]

Leaving microphone bias off is a valid setting and even used in the DT
binding document example. Add this setting here and document the same.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
---
 Documentation/devicetree/bindings/sound/tlv320aic31xx.txt | 1 +
 include/dt-bindings/sound/tlv320aic31xx-micbias.h         | 1 +
 sound/soc/codecs/tlv320aic31xx.c                          | 1 +
 3 files changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/tlv320aic31xx.txt b/Documentation/devicetree/bindings/sound/tlv320aic31xx.txt
index 5b3c33bb99e5..411cc46a2c58 100644
--- a/Documentation/devicetree/bindings/sound/tlv320aic31xx.txt
+++ b/Documentation/devicetree/bindings/sound/tlv320aic31xx.txt
@@ -24,6 +24,7 @@ Optional properties:
 
 - reset-gpios - GPIO specification for the active low RESET input.
 - ai31xx-micbias-vg - MicBias Voltage setting
+        0 or MICBIAS_OFF - MICBIAS output is powered off
         1 or MICBIAS_2_0V - MICBIAS output is powered to 2.0V
         2 or MICBIAS_2_5V - MICBIAS output is powered to 2.5V
         3 or MICBIAS_AVDD - MICBIAS output is connected to AVDD
diff --git a/include/dt-bindings/sound/tlv320aic31xx-micbias.h b/include/dt-bindings/sound/tlv320aic31xx-micbias.h
index c6895a18a455..069484070fcf 100644
--- a/include/dt-bindings/sound/tlv320aic31xx-micbias.h
+++ b/include/dt-bindings/sound/tlv320aic31xx-micbias.h
@@ -2,6 +2,7 @@
 #ifndef __DT_TLV320AIC31XX_MICBIAS_H
 #define __DT_TLV320AIC31XX_MICBIAS_H
 
+#define MICBIAS_OFF		0
 #define MICBIAS_2_0V		1
 #define MICBIAS_2_5V		2
 #define MICBIAS_AVDDV		3
diff --git a/sound/soc/codecs/tlv320aic31xx.c b/sound/soc/codecs/tlv320aic31xx.c
index 0e00421d363b..252d99af6688 100644
--- a/sound/soc/codecs/tlv320aic31xx.c
+++ b/sound/soc/codecs/tlv320aic31xx.c
@@ -1298,6 +1298,7 @@ static int aic31xx_i2c_probe(struct i2c_client *i2c,
 	fwnode_property_read_u32(aic31xx->dev->fwnode, "ai31xx-micbias-vg",
 				 &micbias_value);
 	switch (micbias_value) {
+	case MICBIAS_OFF:
 	case MICBIAS_2_0V:
 	case MICBIAS_2_5V:
 	case MICBIAS_AVDDV:
-- 
2.15.0

[PATCH v2 11/19] ASoC: tlv320aic31xx: Check clock and divider before division

[Andrew F. Davis]

If our set_sysclk DAI callback has not been called yet p_div will be 0
and dividing by this will cause an error. Print an error message and
leave before this.

Signed-off-by: Andrew F. Davis <afd@ti.com>
---
 sound/soc/codecs/tlv320aic31xx.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/tlv320aic31xx.c b/sound/soc/codecs/tlv320aic31xx.c
index 252d99af6688..41e2d8077a62 100644
--- a/sound/soc/codecs/tlv320aic31xx.c
+++ b/sound/soc/codecs/tlv320aic31xx.c
@@ -755,11 +755,17 @@ static int aic31xx_setup_pll(struct snd_soc_codec *codec,
 {
 	struct aic31xx_priv *aic31xx = snd_soc_codec_get_drvdata(codec);
 	int bclk_score = snd_soc_params_to_frame_size(params);
-	int mclk_p = aic31xx->sysclk / aic31xx->p_div;
+	int mclk_p;
 	int bclk_n = 0;
 	int match = -1;
 	int i;
 
+	if (!aic31xx->sysclk || !aic31xx->p_div) {
+		dev_err(codec->dev, "Master clock not supplied\n");
+		return -EINVAL;
+	}
+	mclk_p = aic31xx->sysclk / aic31xx->p_div;
+
 	/* Use PLL as CODEC_CLKIN and DAC_CLK as BDIV_CLKIN */
 	snd_soc_update_bits(codec, AIC31XX_CLKMUX,
 			    AIC31XX_CODEC_CLKIN_MASK, AIC31XX_CODEC_CLKIN_PLL);
-- 
2.15.0

[PATCH v2 12/19] ASoC: tlv320aic31xx: Add CODEC clock slave support

[Andrew F. Davis]

This CODEC supports being the WCLK and/or BCLK slave, add
support for this here.

Also make the alert into an error as alert is more urgent
than needed here and is rarely used.

Signed-off-by: Andrew F. Davis <afd@ti.com>
---
 sound/soc/codecs/tlv320aic31xx.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/tlv320aic31xx.c b/sound/soc/codecs/tlv320aic31xx.c
index 41e2d8077a62..b39db3eb06d0 100644
--- a/sound/soc/codecs/tlv320aic31xx.c
+++ b/sound/soc/codecs/tlv320aic31xx.c
@@ -926,8 +926,16 @@ static int aic31xx_set_dai_fmt(struct snd_soc_dai *codec_dai,
 	case SND_SOC_DAIFMT_CBM_CFM:
 		iface_reg1 |= AIC31XX_BCLK_MASTER | AIC31XX_WCLK_MASTER;
 		break;
+	case SND_SOC_DAIFMT_CBS_CFM:
+		iface_reg1 |= AIC31XX_WCLK_MASTER;
+		break;
+	case SND_SOC_DAIFMT_CBM_CFS:
+		iface_reg1 |= AIC31XX_BCLK_MASTER;
+		break;
+	case SND_SOC_DAIFMT_CBS_CFS:
+		break;
 	default:
-		dev_alert(codec->dev, "Invalid DAI master/slave interface\n");
+		dev_err(codec->dev, "Invalid DAI master/slave interface\n");
 		return -EINVAL;
 	}
 
-- 
2.15.0

[PATCH v2 13/19] ASoC: tlv320aic31xx: Fix inverted BCLK handling

[Andrew F. Davis]

Currently BCLK inverting is only handled when the DAI format is
DSP, but the BCLK may be inverted in any supported mode. Without
this using this CODEC in any other mode than DSP with the BCLK
inverted leads to bad sampling timing and very poor audio quality.

Fixes: e00447fafbf7 ("ASoC: tlv320aic31xx: Add basic codec driver implementation")

Signed-off-by: Andrew F. Davis <afd@ti.com>
---
 sound/soc/codecs/tlv320aic31xx.c | 28 ++++++++++++++++++----------
 1 file changed, 18 insertions(+), 10 deletions(-)

diff --git a/sound/soc/codecs/tlv320aic31xx.c b/sound/soc/codecs/tlv320aic31xx.c
index b39db3eb06d0..f7b1ec96d826 100644
--- a/sound/soc/codecs/tlv320aic31xx.c
+++ b/sound/soc/codecs/tlv320aic31xx.c
@@ -939,6 +939,18 @@ static int aic31xx_set_dai_fmt(struct snd_soc_dai *codec_dai,
 		return -EINVAL;
 	}
 
+	/* signal polarity */
+	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+	case SND_SOC_DAIFMT_NB_NF:
+		break;
+	case SND_SOC_DAIFMT_IB_NF:
+		iface_reg2 |= AIC31XX_BCLKINV_MASK;
+		break;
+	default:
+		dev_err(codec->dev, "Invalid DAI clock signal polarity\n");
+		return -EINVAL;
+	}
+
 	/* interface format */
 	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 	case SND_SOC_DAIFMT_I2S:
@@ -946,16 +958,12 @@ static int aic31xx_set_dai_fmt(struct snd_soc_dai *codec_dai,
 	case SND_SOC_DAIFMT_DSP_A:
 		dsp_a_val = 0x1; /* fall through */
 	case SND_SOC_DAIFMT_DSP_B:
-		/* NOTE: BCLKINV bit value 1 equas NB and 0 equals IB */
-		switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
-		case SND_SOC_DAIFMT_NB_NF:
-			iface_reg2 |= AIC31XX_BCLKINV_MASK;
-			break;
-		case SND_SOC_DAIFMT_IB_NF:
-			break;
-		default:
-			return -EINVAL;
-		}
+		/*
+		 * NOTE: This CODEC samples on the falling edge of BCLK in
+		 * DSP mode, this is inverted compared to what most DAIs
+		 * expect, so we invert for this mode
+		 */
+		iface_reg2 ^= AIC31XX_BCLKINV_MASK;
 		iface_reg1 |= (AIC31XX_DSP_MODE <<
 			       AIC31XX_IFACE1_DATATYPE_SHIFT);
 		break;
-- 
2.15.0

[PATCH v2 14/19] ASoC: tlv320aic31xx: Remove regulator notification handling

[Andrew F. Davis]

A regulator being forcefully disabled is a catastrophic event that
should never happen to most devices, especially not sound CODECs.
In addition, our handler sets the reset line but never disables it
as no one is listening for an enable event, this is certainly broken
and was mosy likely just copied from other CODECs, lets just remove
this code.

Signed-off-by: Andrew F. Davis <afd@ti.com>
---
 sound/soc/codecs/tlv320aic31xx.c | 50 ----------------------------------------
 1 file changed, 50 deletions(-)

diff --git a/sound/soc/codecs/tlv320aic31xx.c b/sound/soc/codecs/tlv320aic31xx.c
index f7b1ec96d826..b51c2777e8d1 100644
--- a/sound/soc/codecs/tlv320aic31xx.c
+++ b/sound/soc/codecs/tlv320aic31xx.c
@@ -161,7 +161,6 @@ struct aic31xx_priv {
 	struct gpio_desc *gpio_reset;
 	int micbias_vg;
 	struct regulator_bulk_data supplies[AIC31XX_NUM_SUPPLIES];
-	struct aic31xx_disable_nb disable_nb[AIC31XX_NUM_SUPPLIES];
 	unsigned int sysclk;
 	u8 p_div;
 	int rate_div_line;
@@ -1032,28 +1031,6 @@ static int aic31xx_set_dai_sysclk(struct snd_soc_dai *codec_dai,
 	return 0;
 }
 
-static int aic31xx_regulator_event(struct notifier_block *nb,
-				   unsigned long event, void *data)
-{
-	struct aic31xx_disable_nb *disable_nb =
-		container_of(nb, struct aic31xx_disable_nb, nb);
-	struct aic31xx_priv *aic31xx = disable_nb->aic31xx;
-
-	if (event & REGULATOR_EVENT_DISABLE) {
-		/*
-		 * Put codec to reset and as at least one of the
-		 * supplies was disabled.
-		 */
-		if (aic31xx->gpio_reset)
-			gpiod_set_value(aic31xx->gpio_reset, 1);
-
-		regcache_mark_dirty(aic31xx->regmap);
-		dev_dbg(aic31xx->dev, "## %s: DISABLE received\n", __func__);
-	}
-
-	return 0;
-}
-
 static void aic31xx_clk_on(struct snd_soc_codec *codec)
 {
 	struct aic31xx_priv *aic31xx = snd_soc_codec_get_drvdata(codec);
@@ -1167,20 +1144,6 @@ static int aic31xx_codec_probe(struct snd_soc_codec *codec)
 
 	aic31xx->codec = codec;
 
-	for (i = 0; i < ARRAY_SIZE(aic31xx->supplies); i++) {
-		aic31xx->disable_nb[i].nb.notifier_call =
-			aic31xx_regulator_event;
-		aic31xx->disable_nb[i].aic31xx = aic31xx;
-		ret = regulator_register_notifier(aic31xx->supplies[i].consumer,
-						  &aic31xx->disable_nb[i].nb);
-		if (ret) {
-			dev_err(codec->dev,
-				"Failed to request regulator notifier: %d\n",
-				ret);
-			return ret;
-		}
-	}
-
 	regcache_cache_only(aic31xx->regmap, true);
 	regcache_mark_dirty(aic31xx->regmap);
 
@@ -1195,21 +1158,8 @@ static int aic31xx_codec_probe(struct snd_soc_codec *codec)
 	return 0;
 }
 
-static int aic31xx_codec_remove(struct snd_soc_codec *codec)
-{
-	struct aic31xx_priv *aic31xx = snd_soc_codec_get_drvdata(codec);
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(aic31xx->supplies); i++)
-		regulator_unregister_notifier(aic31xx->supplies[i].consumer,
-					      &aic31xx->disable_nb[i].nb);
-
-	return 0;
-}
-
 static const struct snd_soc_codec_driver soc_codec_driver_aic31xx = {
 	.probe			= aic31xx_codec_probe,
-	.remove			= aic31xx_codec_remove,
 	.set_bias_level		= aic31xx_set_bias_level,
 	.suspend_bias_off	= true,
 
-- 
2.15.0

[PATCH v2 15/19] ASoC: tlv320aic31xx: Reset registers during power up

[Andrew F. Davis]

Add a reset function that toggles the reset line if available or uses
the software reset command otherwise. Use this in power up to ensure the
registers are in a sane state. This is useful when the driver module
is reloaded, or after Kexec, warm-reboots, etc..

Signed-off-by: Andrew F. Davis <afd@ti.com>
---
 sound/soc/codecs/tlv320aic31xx.c | 26 ++++++++++++++++++++++----
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/sound/soc/codecs/tlv320aic31xx.c b/sound/soc/codecs/tlv320aic31xx.c
index b51c2777e8d1..77ae8f36a943 100644
--- a/sound/soc/codecs/tlv320aic31xx.c
+++ b/sound/soc/codecs/tlv320aic31xx.c
@@ -1031,6 +1031,24 @@ static int aic31xx_set_dai_sysclk(struct snd_soc_dai *codec_dai,
 	return 0;
 }
 
+static int aic31xx_reset(struct aic31xx_priv *aic31xx)
+{
+	int ret = 0;
+
+	if (aic31xx->gpio_reset) {
+		gpiod_set_value(aic31xx->gpio_reset, 1);
+		ndelay(10); /* At least 10ns */
+		gpiod_set_value(aic31xx->gpio_reset, 0);
+	} else {
+		ret = regmap_write(aic31xx->regmap, AIC31XX_RESET, 1);
+		if (ret < 0)
+			dev_err(aic31xx->dev, "Could not reset device\n");
+	}
+	mdelay(1); /* At least 1ms */
+
+	return ret;
+}
+
 static void aic31xx_clk_on(struct snd_soc_codec *codec)
 {
 	struct aic31xx_priv *aic31xx = snd_soc_codec_get_drvdata(codec);
@@ -1074,11 +1092,11 @@ static int aic31xx_power_on(struct snd_soc_codec *codec)
 	if (ret)
 		return ret;
 
-	if (aic31xx->gpio_reset) {
-		gpiod_set_value(aic31xx->gpio_reset, 0);
-		udelay(100);
-	}
 	regcache_cache_only(aic31xx->regmap, false);
+
+	/* Reset device registers for a consistent power-on like state */
+	aic31xx_reset(aic31xx);
+
 	ret = regcache_sync(aic31xx->regmap);
 	if (ret) {
 		dev_err(codec->dev,
-- 
2.15.0

[PATCH v2 16/19] ASoC: tlv320aic31xx: Add short circuit detection support

[Andrew F. Davis]

These devices support detecting and reporting short circuits across
the output stages. Add support for reporting these issue. Do this
by registering an interrupt if available and enabling this error
to trigger that interrupt in the device.

Signed-off-by: Andrew F. Davis <afd@ti.com>
---
 sound/soc/codecs/tlv320aic31xx.c | 42 ++++++++++++++++++++++++++++++++++++++++
 sound/soc/codecs/tlv320aic31xx.h | 16 +++++++++++++++
 2 files changed, 58 insertions(+)

diff --git a/sound/soc/codecs/tlv320aic31xx.c b/sound/soc/codecs/tlv320aic31xx.c
index 77ae8f36a943..fd3109366377 100644
--- a/sound/soc/codecs/tlv320aic31xx.c
+++ b/sound/soc/codecs/tlv320aic31xx.c
@@ -164,6 +164,7 @@ struct aic31xx_priv {
 	unsigned int sysclk;
 	u8 p_div;
 	int rate_div_line;
+	int irq;
 };
 
 struct aic31xx_rate_divs {
@@ -1258,6 +1259,27 @@ static const struct acpi_device_id aic31xx_acpi_match[] = {
 MODULE_DEVICE_TABLE(acpi, aic31xx_acpi_match);
 #endif
 
+static irqreturn_t aic31xx_irq(int irq, void *data)
+{
+	struct aic31xx_priv *aic31xx = (struct aic31xx_priv *)data;
+	struct device *dev = aic31xx->dev;
+	unsigned int value;
+	int ret;
+
+	ret = regmap_read(aic31xx->regmap, AIC31XX_INTRDACFLAG, &value);
+	if (ret) {
+		dev_err(dev, "Failed to read interrupt mask: %d\n", ret);
+		return IRQ_NONE;
+	}
+
+	if (value & AIC31XX_HPLSCDETECT)
+		dev_err(dev, "Short circuit on Left output is detected\n");
+	if (value & AIC31XX_HPRSCDETECT)
+		dev_err(dev, "Short circuit on Right output is detected\n");
+
+	return IRQ_HANDLED;
+}
+
 static int aic31xx_i2c_probe(struct i2c_client *i2c,
 			     const struct i2c_device_id *id)
 {
@@ -1280,6 +1302,7 @@ static int aic31xx_i2c_probe(struct i2c_client *i2c,
 		return ret;
 	}
 	aic31xx->dev = &i2c->dev;
+	aic31xx->irq = i2c->irq;
 
 	aic31xx->codec_type = id->driver_data;
 
@@ -1318,6 +1341,25 @@ static int aic31xx_i2c_probe(struct i2c_client *i2c,
 		return ret;
 	}
 
+	if (aic31xx->irq > 0) {
+		regmap_update_bits(aic31xx->regmap, AIC31XX_GPIO1,
+				   AIC31XX_GPIO1_FUNC_MASK,
+				   AIC31XX_GPIO1_INT1 <<
+				   AIC31XX_GPIO1_FUNC_SHIFT);
+
+		regmap_write(aic31xx->regmap, AIC31XX_INT1CTRL,
+			     AIC31XX_SC);
+
+		ret = devm_request_threaded_irq(aic31xx->dev, aic31xx->irq,
+						NULL, aic31xx_irq,
+						IRQF_ONESHOT, "aic31xx-irq",
+						aic31xx);
+		if (ret) {
+			dev_err(aic31xx->dev, "Unable to request IRQ\n");
+			return ret;
+		}
+	}
+
 	if (aic31xx->codec_type & DAC31XX_BIT)
 		return snd_soc_register_codec(&i2c->dev,
 				&soc_codec_driver_aic31xx,
diff --git a/sound/soc/codecs/tlv320aic31xx.h b/sound/soc/codecs/tlv320aic31xx.h
index ab94e6a0c742..9dc85b6f6ad3 100644
--- a/sound/soc/codecs/tlv320aic31xx.h
+++ b/sound/soc/codecs/tlv320aic31xx.h
@@ -184,6 +184,22 @@ enum aic31xx_type {
 #define AIC31XX_SC			BIT(3)
 #define AIC31XX_ENGINE			BIT(2)
 
+/* AIC31XX_GPIO1 */
+#define AIC31XX_GPIO1_FUNC_MASK		GENMASK(5, 2)
+#define AIC31XX_GPIO1_FUNC_SHIFT	2
+#define AIC31XX_GPIO1_DISABLED		0x00
+#define AIC31XX_GPIO1_INPUT		0x01
+#define AIC31XX_GPIO1_GPI		0x02
+#define AIC31XX_GPIO1_GPO		0x03
+#define AIC31XX_GPIO1_CLKOUT		0x04
+#define AIC31XX_GPIO1_INT1		0x05
+#define AIC31XX_GPIO1_INT2		0x06
+#define AIC31XX_GPIO1_ADC_WCLK		0x07
+#define AIC31XX_GPIO1_SBCLK		0x08
+#define AIC31XX_GPIO1_SWCLK		0x09
+#define AIC31XX_GPIO1_ADC_MOD_CLK	0x10
+#define AIC31XX_GPIO1_SDOUT		0x11
+
 /* AIC31XX_DACSETUP */
 #define AIC31XX_SOFTSTEP_MASK		GENMASK(1, 0)
 
-- 
2.15.0

[PATCH v2 17/19] ASoC: tlv320aic31xx: Add overflow detection support

[Andrew F. Davis]

Similar to short circuit detection, when the ADC/DAC is saturated and
overflows poor audio quality can result and should be reported to the
user. This device support Automatic Dynamic Range Compression (DRC)
to reduce this but it is not enabled currently in this driver.

Signed-off-by: Andrew F. Davis <afd@ti.com>
---
 sound/soc/codecs/tlv320aic31xx.c | 20 +++++++++++++++++++-
 sound/soc/codecs/tlv320aic31xx.h |  7 +++++++
 2 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/tlv320aic31xx.c b/sound/soc/codecs/tlv320aic31xx.c
index fd3109366377..094b1596f9cc 100644
--- a/sound/soc/codecs/tlv320aic31xx.c
+++ b/sound/soc/codecs/tlv320aic31xx.c
@@ -1277,6 +1277,23 @@ static irqreturn_t aic31xx_irq(int irq, void *data)
 	if (value & AIC31XX_HPRSCDETECT)
 		dev_err(dev, "Short circuit on Right output is detected\n");
 
+	ret = regmap_read(aic31xx->regmap, AIC31XX_OFFLAG, &value);
+	if (ret) {
+		dev_err(dev, "Failed to read overflow flag: %d\n", ret);
+		return IRQ_NONE;
+	}
+
+	if (value & AIC31XX_DAC_OF_LEFT)
+		dev_err(dev, "Left-channel DAC overflow has occurred\n");
+	if (value & AIC31XX_DAC_OF_RIGHT)
+		dev_err(dev, "Right-channel DAC overflow has occurred\n");
+	if (value & AIC31XX_DAC_OF_SHIFTER)
+		dev_err(dev, "DAC barrel shifter overflow has occurred\n");
+	if (value & AIC31XX_ADC_OF)
+		dev_err(dev, "ADC overflow has occurred\n");
+	if (value & AIC31XX_ADC_OF_SHIFTER)
+		dev_err(dev, "ADC barrel shifter overflow has occurred\n");
+
 	return IRQ_HANDLED;
 }
 
@@ -1348,7 +1365,8 @@ static int aic31xx_i2c_probe(struct i2c_client *i2c,
 				   AIC31XX_GPIO1_FUNC_SHIFT);
 
 		regmap_write(aic31xx->regmap, AIC31XX_INT1CTRL,
-			     AIC31XX_SC);
+			     AIC31XX_SC |
+			     AIC31XX_ENGINE);
 
 		ret = devm_request_threaded_irq(aic31xx->dev, aic31xx->irq,
 						NULL, aic31xx_irq,
diff --git a/sound/soc/codecs/tlv320aic31xx.h b/sound/soc/codecs/tlv320aic31xx.h
index 9dc85b6f6ad3..d062663f66b5 100644
--- a/sound/soc/codecs/tlv320aic31xx.h
+++ b/sound/soc/codecs/tlv320aic31xx.h
@@ -166,6 +166,13 @@ enum aic31xx_type {
 #define AIC31XX_HPRDRVPWRSTATUS_MASK	BIT(1)
 #define AIC31XX_SPRDRVPWRSTATUS_MASK	BIT(0)
 
+/* AIC31XX_OFFLAG */
+#define AIC31XX_DAC_OF_LEFT		BIT(7)
+#define AIC31XX_DAC_OF_RIGHT		BIT(6)
+#define AIC31XX_DAC_OF_SHIFTER		BIT(5)
+#define AIC31XX_ADC_OF			BIT(3)
+#define AIC31XX_ADC_OF_SHIFTER		BIT(1)
+
 /* AIC31XX_INTRDACFLAG */
 #define AIC31XX_HPLSCDETECT		BIT(7)
 #define AIC31XX_HPRSCDETECT		BIT(6)
-- 
2.15.0

[PATCH v2 18/19] ASoC: tlv320aic31xx: Add headphone/headset detection

[Andrew F. Davis]

This device can detect the insertion/removal of headphones and headsets.
Enable reporting this status by enabling this interrupt and forwarding
this to upper-layers if a jack has been defined.

This jack definition and the resulting operation from a jack detection
event must currently be defined by sound card platform code until CODEC
outputs to jack mappings can be defined generically.

Signed-off-by: Andrew F. Davis <afd@ti.com>
---
 sound/soc/codecs/tlv320aic31xx.c | 33 +++++++++++++++++++++++++++++++++
 sound/soc/codecs/tlv320aic31xx.h | 11 +++++++++++
 2 files changed, 44 insertions(+)

diff --git a/sound/soc/codecs/tlv320aic31xx.c b/sound/soc/codecs/tlv320aic31xx.c
index 094b1596f9cc..471b31be55d1 100644
--- a/sound/soc/codecs/tlv320aic31xx.c
+++ b/sound/soc/codecs/tlv320aic31xx.c
@@ -25,6 +25,7 @@
 #include <linux/of_gpio.h>
 #include <linux/slab.h>
 #include <sound/core.h>
+#include <sound/jack.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
 #include <sound/soc.h>
@@ -89,6 +90,7 @@ static bool aic31xx_volatile(struct device *dev, unsigned int reg)
 	case AIC31XX_INTRADCFLAG: /* Sticky interrupt flags */
 	case AIC31XX_INTRDACFLAG2:
 	case AIC31XX_INTRADCFLAG2:
+	case AIC31XX_HSDETECT:
 		return true;
 	}
 	return false;
@@ -161,6 +163,7 @@ struct aic31xx_priv {
 	struct gpio_desc *gpio_reset;
 	int micbias_vg;
 	struct regulator_bulk_data supplies[AIC31XX_NUM_SUPPLIES];
+	struct snd_soc_jack *jack;
 	unsigned int sysclk;
 	u8 p_div;
 	int rate_div_line;
@@ -1277,6 +1280,32 @@ static irqreturn_t aic31xx_irq(int irq, void *data)
 	if (value & AIC31XX_HPRSCDETECT)
 		dev_err(dev, "Short circuit on Right output is detected\n");
 
+	if (value & AIC31XX_HSPLUG) {
+		int status = 0;
+
+		ret = regmap_read(aic31xx->regmap, AIC31XX_HSDETECT, &value);
+		if (ret) {
+			dev_err(dev, "Failed to read headset type: %d\n", ret);
+			return IRQ_NONE;
+		}
+
+		switch ((value & AIC31XX_HSD_TYPE_MASK) >>
+			AIC31XX_HSD_TYPE_SHIFT) {
+		case AIC31XX_HSD_HP:
+			status |= SND_JACK_HEADPHONE;
+			break;
+		case AIC31XX_HSD_HS:
+			status |= SND_JACK_HEADSET;
+			break;
+		default:
+			break;
+		}
+
+		if (aic31xx->jack)
+			snd_soc_jack_report(aic31xx->jack, status,
+					    AIC31XX_JACK_MASK);
+	}
+
 	ret = regmap_read(aic31xx->regmap, AIC31XX_OFFLAG, &value);
 	if (ret) {
 		dev_err(dev, "Failed to read overflow flag: %d\n", ret);
@@ -1365,9 +1394,13 @@ static int aic31xx_i2c_probe(struct i2c_client *i2c,
 				   AIC31XX_GPIO1_FUNC_SHIFT);
 
 		regmap_write(aic31xx->regmap, AIC31XX_INT1CTRL,
+			     AIC31XX_HSPLUGDET |
 			     AIC31XX_SC |
 			     AIC31XX_ENGINE);
 
+		regmap_write(aic31xx->regmap, AIC31XX_HSDETECT,
+			     AIC31XX_HSD_ENABLE);
+
 		ret = devm_request_threaded_irq(aic31xx->dev, aic31xx->irq,
 						NULL, aic31xx_irq,
 						IRQF_ONESHOT, "aic31xx-irq",
diff --git a/sound/soc/codecs/tlv320aic31xx.h b/sound/soc/codecs/tlv320aic31xx.h
index d062663f66b5..66c85df4d5be 100644
--- a/sound/soc/codecs/tlv320aic31xx.h
+++ b/sound/soc/codecs/tlv320aic31xx.h
@@ -20,6 +20,9 @@
 #define AIC31XX_MINIDSP_BIT		BIT(2)
 #define DAC31XX_BIT			BIT(3)
 
+#define AIC31XX_JACK_MASK (SND_JACK_HEADPHONE | \
+			   SND_JACK_HEADSET)
+
 enum aic31xx_type {
 	AIC3100	= 0,
 	AIC3110 = AIC31XX_STEREO_CLASS_D_BIT,
@@ -213,6 +216,14 @@ enum aic31xx_type {
 /* AIC31XX_DACMUTE */
 #define AIC31XX_DACMUTE_MASK		GENMASK(3, 2)
 
+/* AIC31XX_HSDETECT */
+#define AIC31XX_HSD_ENABLE		BIT(7)
+#define AIC31XX_HSD_TYPE_MASK		GENMASK(6, 5)
+#define AIC31XX_HSD_TYPE_SHIFT		5
+#define AIC31XX_HSD_NONE		0x00
+#define AIC31XX_HSD_HP			0x01
+#define AIC31XX_HSD_HS			0x03
+
 /* AIC31XX_MICBIAS */
 #define AIC31XX_MICBIAS_MASK		GENMASK(1, 0)
 #define AIC31XX_MICBIAS_SHIFT		0
-- 
2.15.0

[PATCH v2 19/19] ASoC: tlv320aic31xx: Add button press detection

[Andrew F. Davis]

This device can optionally detect headset or microphone button presses.
Add support for this by passing this event to the jack layer.

Signed-off-by: Andrew F. Davis <afd@ti.com>
---
 sound/soc/codecs/tlv320aic31xx.c | 14 +++++++++++++-
 sound/soc/codecs/tlv320aic31xx.h |  3 ++-
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/tlv320aic31xx.c b/sound/soc/codecs/tlv320aic31xx.c
index 471b31be55d1..8cd27c99cb15 100644
--- a/sound/soc/codecs/tlv320aic31xx.c
+++ b/sound/soc/codecs/tlv320aic31xx.c
@@ -1280,9 +1280,20 @@ static irqreturn_t aic31xx_irq(int irq, void *data)
 	if (value & AIC31XX_HPRSCDETECT)
 		dev_err(dev, "Short circuit on Right output is detected\n");
 
-	if (value & AIC31XX_HSPLUG) {
+	if (value & (AIC31XX_HSPLUG | AIC31XX_BUTTONPRESS)) {
 		int status = 0;
 
+		ret = regmap_read(aic31xx->regmap, AIC31XX_INTRDACFLAG2,
+				  &value);
+		if (ret) {
+			dev_err(dev, "Failed to read interrupt mask: %d\n",
+				ret);
+			return IRQ_NONE;
+		}
+
+		if (value & AIC31XX_BUTTONPRESS)
+			status |= SND_JACK_BTN_0;
+
 		ret = regmap_read(aic31xx->regmap, AIC31XX_HSDETECT, &value);
 		if (ret) {
 			dev_err(dev, "Failed to read headset type: %d\n", ret);
@@ -1395,6 +1406,7 @@ static int aic31xx_i2c_probe(struct i2c_client *i2c,
 
 		regmap_write(aic31xx->regmap, AIC31XX_INT1CTRL,
 			     AIC31XX_HSPLUGDET |
+			     AIC31XX_BUTTONPRESSDET |
 			     AIC31XX_SC |
 			     AIC31XX_ENGINE);
 
diff --git a/sound/soc/codecs/tlv320aic31xx.h b/sound/soc/codecs/tlv320aic31xx.h
index 66c85df4d5be..7fce278eadac 100644
--- a/sound/soc/codecs/tlv320aic31xx.h
+++ b/sound/soc/codecs/tlv320aic31xx.h
@@ -21,7 +21,8 @@
 #define DAC31XX_BIT			BIT(3)
 
 #define AIC31XX_JACK_MASK (SND_JACK_HEADPHONE | \
-			   SND_JACK_HEADSET)
+			   SND_JACK_HEADSET | \
+			   SND_JACK_BTN_0)
 
 enum aic31xx_type {
 	AIC3100	= 0,
-- 
2.15.0

Re: [PATCH v2 01/19] ASoC: tlv320aic31xx: File header and copyright cleanup

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 535 bytes --]

On Wed, Nov 29, 2017 at 03:32:42PM -0600, Andrew F. Davis wrote:
> Fix header copyright tags, while we are here, also switch to SPDX
> and fixup MODULE tags to match.

> - * The TLV320AIC31xx series of audio codec is a low-power, highly integrated
> - * high performance codec which provides a stereo DAC, a mono ADC,
> + * The TLV320AIC31xx series of audio codecs are low-power, highly integrated
> + * high performance codecs which provides a stereo DAC, a mono ADC,

...and also correct some grammar in the description of the part.

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]

Re: [PATCH v2 09/19] ASoC: tlv320aic31xx: Remove platform data

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 309 bytes --]

On Wed, Nov 29, 2017 at 03:32:50PM -0600, Andrew F. Davis wrote:
> Platform data is not used by anyone (at least in upstream) so
> drop this data and switch to using fwnode(DT/ACPI) only.

The advantage being...?  Not all architectures use DT or ACPI so it's
not clear that this is a step forwards in itself.

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]

Re: [PATCH v2 10/19] ASoC: tlv320aic31xx: Add MICBIAS off setting

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 732 bytes --]

On Wed, Nov 29, 2017 at 03:32:51PM -0600, Andrew F. Davis wrote:
> Leaving microphone bias off is a valid setting and even used in the DT
> binding document example. Add this setting here and document the same.

>  - ai31xx-micbias-vg - MicBias Voltage setting
> +        0 or MICBIAS_OFF - MICBIAS output is powered off
>          1 or MICBIAS_2_0V - MICBIAS output is powered to 2.0V
>          2 or MICBIAS_2_5V - MICBIAS output is powered to 2.5V
>          3 or MICBIAS_AVDD - MICBIAS output is connected to AVDD

This doesn't make much sense.  If we enable the microphone with a
voltage of 0V that's not going to work terribly well - I'd expect this
property to control the voltage set when it's enabled, not if it's
enabled.

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]

Re: [PATCH v2 14/19] ASoC: tlv320aic31xx: Remove regulator notification handling

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 478 bytes --]

On Wed, Nov 29, 2017 at 03:32:55PM -0600, Andrew F. Davis wrote:
> A regulator being forcefully disabled is a catastrophic event that
> should never happen to most devices, especially not sound CODECs.

That's not what the disable notification handling is for.  It's there so
that the driver can skip having to reinitialize the device if other
constraints mean the power doesn't actually get turned off when it
disables the regualtors.  It's nothing to do with forced disables.

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]

Re: [PATCH v2 15/19] ASoC: tlv320aic31xx: Reset registers during power up

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 449 bytes --]

On Wed, Nov 29, 2017 at 03:32:56PM -0600, Andrew F. Davis wrote:

> +		gpiod_set_value(aic31xx->gpio_reset, 1);
> +		ndelay(10); /* At least 10ns */
> +		gpiod_set_value(aic31xx->gpio_reset, 0);

_cansleep(), this isn't being done from interrupt context.

> +	} else {
> +		ret = regmap_write(aic31xx->regmap, AIC31XX_RESET, 1);
> +		if (ret < 0)
> +			dev_err(aic31xx->dev, "Could not reset device\n");

Print the error to help people doing debug.

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]

Re: [PATCH v2 16/19] ASoC: tlv320aic31xx: Add short circuit detection support

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 1109 bytes --]

On Wed, Nov 29, 2017 at 03:32:57PM -0600, Andrew F. Davis wrote:

> +static irqreturn_t aic31xx_irq(int irq, void *data)
> +{
> +	struct aic31xx_priv *aic31xx = (struct aic31xx_priv *)data;

There is no need to cast away from void, doing so can only mask bugs.

> +	ret = regmap_read(aic31xx->regmap, AIC31XX_INTRDACFLAG, &value);
> +	if (ret) {
> +		dev_err(dev, "Failed to read interrupt mask: %d\n", ret);
> +		return IRQ_NONE;
> +	}
> +
> +	if (value & AIC31XX_HPLSCDETECT)
> +		dev_err(dev, "Short circuit on Left output is detected\n");
> +	if (value & AIC31XX_HPRSCDETECT)
> +		dev_err(dev, "Short circuit on Right output is detected\n");
> +
> +	return IRQ_HANDLED;

This will report the interrupt as handled even if we didn't see an
interrupt we understand which will break shared interrupt lines.  At the
very least we should log other interrupt sources numerically.

> +	if (aic31xx->irq > 0) {
> +		regmap_update_bits(aic31xx->regmap, AIC31XX_GPIO1,
> +				   AIC31XX_GPIO1_FUNC_MASK,
> +				   AIC31XX_GPIO1_INT1 <<
> +				   AIC31XX_GPIO1_FUNC_SHIFT);

Is the interrupt only available on GPIO1?

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]

Re: [PATCH v2 18/19] ASoC: tlv320aic31xx: Add headphone/headset detection

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 562 bytes --]

On Wed, Nov 29, 2017 at 03:32:59PM -0600, Andrew F. Davis wrote:
> This device can detect the insertion/removal of headphones and headsets.
> Enable reporting this status by enabling this interrupt and forwarding
> this to upper-layers if a jack has been defined.
> 
> This jack definition and the resulting operation from a jack detection
> event must currently be defined by sound card platform code until CODEC
> outputs to jack mappings can be defined generically.

This only does half the job, there's no way for anything to specify a
jack here.

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]

Re: [PATCH v2 10/19] ASoC: tlv320aic31xx: Add MICBIAS off setting

[Andrew F. Davis]

On 12/01/2017 07:30 AM, Mark Brown wrote:
> On Wed, Nov 29, 2017 at 03:32:51PM -0600, Andrew F. Davis wrote:
>> Leaving microphone bias off is a valid setting and even used in the DT
>> binding document example. Add this setting here and document the same.
> 
>>  - ai31xx-micbias-vg - MicBias Voltage setting
>> +        0 or MICBIAS_OFF - MICBIAS output is powered off
>>          1 or MICBIAS_2_0V - MICBIAS output is powered to 2.0V
>>          2 or MICBIAS_2_5V - MICBIAS output is powered to 2.5V
>>          3 or MICBIAS_AVDD - MICBIAS output is connected to AVDD
> 
> This doesn't make much sense.  If we enable the microphone with a
> voltage of 0V that's not going to work terribly well - I'd expect this
> property to control the voltage set when it's enabled, not if it's
> enabled.
> 

I agree about this not making much sense, but I'm not sure the right way
forward here.

Personally I wouldn't have put MicBias voltage in DT to begin with, it
is runtime configurable and depends on user runtime inserted microphone,
not really a hardware description :/

The enable/disable is controlled by a DAPM and should be wired to enable
whenever we are recording from the related microphone pin. So then
without MICBIAS_OFF the user is forced to select from the above voltages
whenever recording, which may not be correct if they are using a mic
that doesn't need bias.

The best option I think would be to drop this from DT, but I don't feel
like fighting that battle right now.

Re: [PATCH v2 14/19] ASoC: tlv320aic31xx: Remove regulator notification handling

[Andrew F. Davis]

On 12/01/2017 07:36 AM, Mark Brown wrote:
> On Wed, Nov 29, 2017 at 03:32:55PM -0600, Andrew F. Davis wrote:
>> A regulator being forcefully disabled is a catastrophic event that
>> should never happen to most devices, especially not sound CODECs.
> 
> That's not what the disable notification handling is for.  It's there so
> that the driver can skip having to reinitialize the device if other
> constraints mean the power doesn't actually get turned off when it
> disables the regualtors.  It's nothing to do with forced disables.
> 

Looking into the call sites, at least in this case the only time this
notification will be called, outside the normal enable/disable paths
(which do the same thing here: turn on regmap cache only mode and mark
it dirty), will be during a force disable scenario.

Re: [PATCH v2 15/19] ASoC: tlv320aic31xx: Reset registers during power up

[Andrew F. Davis]

On 12/01/2017 07:37 AM, Mark Brown wrote:
> On Wed, Nov 29, 2017 at 03:32:56PM -0600, Andrew F. Davis wrote:
> 
>> +		gpiod_set_value(aic31xx->gpio_reset, 1);
>> +		ndelay(10); /* At least 10ns */
>> +		gpiod_set_value(aic31xx->gpio_reset, 0);
> 
> _cansleep(), this isn't being done from interrupt context.
> 

will fix

>> +	} else {
>> +		ret = regmap_write(aic31xx->regmap, AIC31XX_RESET, 1);
>> +		if (ret < 0)
>> +			dev_err(aic31xx->dev, "Could not reset device\n");
> 
> Print the error to help people doing debug.
> 

Do you mean by adding the ret code to the print?

Re: [PATCH v2 16/19] ASoC: tlv320aic31xx: Add short circuit detection support

[Andrew F. Davis]

On 12/01/2017 07:39 AM, Mark Brown wrote:
> On Wed, Nov 29, 2017 at 03:32:57PM -0600, Andrew F. Davis wrote:
> 
>> +static irqreturn_t aic31xx_irq(int irq, void *data)
>> +{
>> +	struct aic31xx_priv *aic31xx = (struct aic31xx_priv *)data;
> 
> There is no need to cast away from void, doing so can only mask bugs.
> 
>> +	ret = regmap_read(aic31xx->regmap, AIC31XX_INTRDACFLAG, &value);
>> +	if (ret) {
>> +		dev_err(dev, "Failed to read interrupt mask: %d\n", ret);
>> +		return IRQ_NONE;
>> +	}
>> +
>> +	if (value & AIC31XX_HPLSCDETECT)
>> +		dev_err(dev, "Short circuit on Left output is detected\n");
>> +	if (value & AIC31XX_HPRSCDETECT)
>> +		dev_err(dev, "Short circuit on Right output is detected\n");
>> +
>> +	return IRQ_HANDLED;
> 
> This will report the interrupt as handled even if we didn't see an
> interrupt we understand which will break shared interrupt lines.  At the
> very least we should log other interrupt sources numerically.
> 

Okay, I think I can make that work by checking if no bits are set in the
interrupt regs and returning early if not, IRQ_NONE.

>> +	if (aic31xx->irq > 0) {
>> +		regmap_update_bits(aic31xx->regmap, AIC31XX_GPIO1,
>> +				   AIC31XX_GPIO1_FUNC_MASK,
>> +				   AIC31XX_GPIO1_INT1 <<
>> +				   AIC31XX_GPIO1_FUNC_SHIFT);
> 
> Is the interrupt only available on GPIO1?
> 

Some devices can route this to GPIO2 IIRC.

I'm not sure how that would be supported, I think we would need to add
interrupt names to DT so users could specify which gpio they wired their
IRQ lines to.

interrupt = <&host 23>;
interrupt-name = "gpio2";

or similar?

Re: [PATCH v2 14/19] ASoC: tlv320aic31xx: Remove regulator notification handling

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 431 bytes --]

On Fri, Dec 01, 2017 at 09:01:19AM -0600, Andrew F. Davis wrote:

> Looking into the call sites, at least in this case the only time this
> notification will be called, outside the normal enable/disable paths
> (which do the same thing here: turn on regmap cache only mode and mark
> it dirty), will be during a force disable scenario.

If all the disable sites in the driver mark the cache dirty then they
should be fixed not to.

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]

Re: [PATCH v2 15/19] ASoC: tlv320aic31xx: Reset registers during power up

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 446 bytes --]

On Fri, Dec 01, 2017 at 09:04:41AM -0600, Andrew F. Davis wrote:
> On 12/01/2017 07:37 AM, Mark Brown wrote:
> > On Wed, Nov 29, 2017 at 03:32:56PM -0600, Andrew F. Davis wrote:

> >> +	} else {
> >> +		ret = regmap_write(aic31xx->regmap, AIC31XX_RESET, 1);
> >> +		if (ret < 0)
> >> +			dev_err(aic31xx->dev, "Could not reset device\n");

> > Print the error to help people doing debug.

> Do you mean by adding the ret code to the print?

Yes.

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]

Re: [PATCH v2 16/19] ASoC: tlv320aic31xx: Add short circuit detection support

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 556 bytes --]

On Fri, Dec 01, 2017 at 09:32:12AM -0600, Andrew F. Davis wrote:
> On 12/01/2017 07:39 AM, Mark Brown wrote:

> > Is the interrupt only available on GPIO1?

> Some devices can route this to GPIO2 IIRC.

> I'm not sure how that would be supported, I think we would need to add
> interrupt names to DT so users could specify which gpio they wired their
> IRQ lines to.

> interrupt = <&host 23>;
> interrupt-name = "gpio2";

> or similar?

You could also use pinctrl an require the user to mux the interrupt in
whatever fashion makes sense for their device.

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]

Re: [PATCH v2 10/19] ASoC: tlv320aic31xx: Add MICBIAS off setting

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 1098 bytes --]

On Fri, Dec 01, 2017 at 08:56:31AM -0600, Andrew F. Davis wrote:

> Personally I wouldn't have put MicBias voltage in DT to begin with, it
> is runtime configurable and depends on user runtime inserted microphone,
> not really a hardware description :/

Usually the system as a whole is specified to have some particular kind
of microphone attached (or soldered in) and this follows from that.
There's typically also soldered down analogue components that are
selected based on the bias voltage so a specific system likely won't
have the full flexibility.

> The enable/disable is controlled by a DAPM and should be wired to enable
> whenever we are recording from the related microphone pin. So then
> without MICBIAS_OFF the user is forced to select from the above voltages
> whenever recording, which may not be correct if they are using a mic
> that doesn't need bias.

That'd depend on someone having a board that was able to detect that a
line input was plugged in or a user control for this.  If the board was
permenantly set up for line input presumably the bias wouldn't even be
wired up.

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]

Re: [PATCH v2 08/19] ASoC: tlv320aic31xx: Switch GPIO handling to use gpiod_* API

[Andrew F. Davis]

On 11/29/2017 03:32 PM, Andrew F. Davis wrote:
> Move to using newer gpiod_* GPIO handling functions. This simplifies
> the code and eases dropping platform data in the next patch. Also
> remember GPIO are active low, so set "1" to reset.
> 
> Signed-off-by: Andrew F. Davis <afd@ti.com>
> ---


Kbuild bot seems mad a this one, looks like I need to include
linux/gpio/consumer.h, will fix for v3.


>  sound/soc/codecs/tlv320aic31xx.c | 23 ++++++++++-------------
>  1 file changed, 10 insertions(+), 13 deletions(-)
> 
> diff --git a/sound/soc/codecs/tlv320aic31xx.c b/sound/soc/codecs/tlv320aic31xx.c
> index c84febd991a0..ab03a19f6aaa 100644
> --- a/sound/soc/codecs/tlv320aic31xx.c
> +++ b/sound/soc/codecs/tlv320aic31xx.c
> @@ -157,6 +157,7 @@ struct aic31xx_priv {
>  	u8 i2c_regs_status;
>  	struct device *dev;
>  	struct regmap *regmap;
> +	struct gpio_desc *gpio_reset;
>  	struct aic31xx_pdata pdata;
>  	struct regulator_bulk_data supplies[AIC31XX_NUM_SUPPLIES];
>  	struct aic31xx_disable_nb disable_nb[AIC31XX_NUM_SUPPLIES];
> @@ -1020,8 +1021,8 @@ static int aic31xx_regulator_event(struct notifier_block *nb,
>  		 * Put codec to reset and as at least one of the
>  		 * supplies was disabled.
>  		 */
> -		if (gpio_is_valid(aic31xx->pdata.gpio_reset))
> -			gpio_set_value(aic31xx->pdata.gpio_reset, 0);
> +		if (aic31xx->gpio_reset)
> +			gpiod_set_value(aic31xx->gpio_reset, 1);
>  
>  		regcache_mark_dirty(aic31xx->regmap);
>  		dev_dbg(aic31xx->dev, "## %s: DISABLE received\n", __func__);
> @@ -1073,8 +1074,8 @@ static int aic31xx_power_on(struct snd_soc_codec *codec)
>  	if (ret)
>  		return ret;
>  
> -	if (gpio_is_valid(aic31xx->pdata.gpio_reset)) {
> -		gpio_set_value(aic31xx->pdata.gpio_reset, 1);
> +	if (aic31xx->gpio_reset) {
> +		gpiod_set_value(aic31xx->gpio_reset, 0);
>  		udelay(100);
>  	}
>  	regcache_cache_only(aic31xx->regmap, false);
> @@ -1334,15 +1335,11 @@ static int aic31xx_i2c_probe(struct i2c_client *i2c,
>  	else if (aic31xx->dev->of_node)
>  		aic31xx_pdata_from_of(aic31xx);
>  
> -	if (aic31xx->pdata.gpio_reset) {
> -		ret = devm_gpio_request_one(aic31xx->dev,
> -					    aic31xx->pdata.gpio_reset,
> -					    GPIOF_OUT_INIT_HIGH,
> -					    "aic31xx-reset-pin");
> -		if (ret < 0) {
> -			dev_err(aic31xx->dev, "not able to acquire gpio\n");
> -			return ret;
> -		}
> +	aic31xx->gpio_reset = devm_gpiod_get_optional(aic31xx->dev, "reset",
> +						      GPIOD_OUT_LOW);
> +	if (IS_ERR(aic31xx->gpio_reset)) {
> +		dev_err(aic31xx->dev, "not able to acquire gpio\n");
> +		return PTR_ERR(aic31xx->gpio_reset);
>  	}
>  
>  	for (i = 0; i < ARRAY_SIZE(aic31xx->supplies); i++)
> 

Re: [PATCH v2 09/19] ASoC: tlv320aic31xx: Remove platform data

[Andrew F. Davis]

On 12/01/2017 07:26 AM, Mark Brown wrote:
> On Wed, Nov 29, 2017 at 03:32:50PM -0600, Andrew F. Davis wrote:
>> Platform data is not used by anyone (at least in upstream) so
>> drop this data and switch to using fwnode(DT/ACPI) only.
> 
> The advantage being...?  Not all architectures use DT or ACPI so it's
> not clear that this is a step forwards in itself.
> 

Simplifies the code in several places, and you don't need to use DT or
ACPI, it probes just fine anyway you normally add an I2C device.

All we are dropping here is the platform_data way of specifying mic-bias
voltage, which if you are wanting to do that in an out-of-tree board
file, then I'm sure you can locally modify this driver to use your
wanted voltage setting by default.

Re: [PATCH v2 08/19] ASoC: tlv320aic31xx: Switch GPIO handling to use gpiod_* API

[Andrew F. Davis]

On 12/04/2017 10:47 AM, Andrew F. Davis wrote:
> On 11/29/2017 03:32 PM, Andrew F. Davis wrote:
>> Move to using newer gpiod_* GPIO handling functions. This simplifies
>> the code and eases dropping platform data in the next patch. Also
>> remember GPIO are active low, so set "1" to reset.
>>
>> Signed-off-by: Andrew F. Davis <afd@ti.com>
>> ---
> 
> 
> Kbuild bot seems mad a this one, looks like I need to include
> linux/gpio/consumer.h, will fix for v3.
> 

Looks like you already have this in your -next branch, how do you want
this fix, I can send a delta patch with the added include, a new v3
version that you can replace the patch in-tree with, or if it's easier
for you manually fix in-tree?

> 
>>  sound/soc/codecs/tlv320aic31xx.c | 23 ++++++++++-------------
>>  1 file changed, 10 insertions(+), 13 deletions(-)
>>
>> diff --git a/sound/soc/codecs/tlv320aic31xx.c b/sound/soc/codecs/tlv320aic31xx.c
>> index c84febd991a0..ab03a19f6aaa 100644
>> --- a/sound/soc/codecs/tlv320aic31xx.c
>> +++ b/sound/soc/codecs/tlv320aic31xx.c
>> @@ -157,6 +157,7 @@ struct aic31xx_priv {
>>  	u8 i2c_regs_status;
>>  	struct device *dev;
>>  	struct regmap *regmap;
>> +	struct gpio_desc *gpio_reset;
>>  	struct aic31xx_pdata pdata;
>>  	struct regulator_bulk_data supplies[AIC31XX_NUM_SUPPLIES];
>>  	struct aic31xx_disable_nb disable_nb[AIC31XX_NUM_SUPPLIES];
>> @@ -1020,8 +1021,8 @@ static int aic31xx_regulator_event(struct notifier_block *nb,
>>  		 * Put codec to reset and as at least one of the
>>  		 * supplies was disabled.
>>  		 */
>> -		if (gpio_is_valid(aic31xx->pdata.gpio_reset))
>> -			gpio_set_value(aic31xx->pdata.gpio_reset, 0);
>> +		if (aic31xx->gpio_reset)
>> +			gpiod_set_value(aic31xx->gpio_reset, 1);
>>  
>>  		regcache_mark_dirty(aic31xx->regmap);
>>  		dev_dbg(aic31xx->dev, "## %s: DISABLE received\n", __func__);
>> @@ -1073,8 +1074,8 @@ static int aic31xx_power_on(struct snd_soc_codec *codec)
>>  	if (ret)
>>  		return ret;
>>  
>> -	if (gpio_is_valid(aic31xx->pdata.gpio_reset)) {
>> -		gpio_set_value(aic31xx->pdata.gpio_reset, 1);
>> +	if (aic31xx->gpio_reset) {
>> +		gpiod_set_value(aic31xx->gpio_reset, 0);
>>  		udelay(100);
>>  	}
>>  	regcache_cache_only(aic31xx->regmap, false);
>> @@ -1334,15 +1335,11 @@ static int aic31xx_i2c_probe(struct i2c_client *i2c,
>>  	else if (aic31xx->dev->of_node)
>>  		aic31xx_pdata_from_of(aic31xx);
>>  
>> -	if (aic31xx->pdata.gpio_reset) {
>> -		ret = devm_gpio_request_one(aic31xx->dev,
>> -					    aic31xx->pdata.gpio_reset,
>> -					    GPIOF_OUT_INIT_HIGH,
>> -					    "aic31xx-reset-pin");
>> -		if (ret < 0) {
>> -			dev_err(aic31xx->dev, "not able to acquire gpio\n");
>> -			return ret;
>> -		}
>> +	aic31xx->gpio_reset = devm_gpiod_get_optional(aic31xx->dev, "reset",
>> +						      GPIOD_OUT_LOW);
>> +	if (IS_ERR(aic31xx->gpio_reset)) {
>> +		dev_err(aic31xx->dev, "not able to acquire gpio\n");
>> +		return PTR_ERR(aic31xx->gpio_reset);
>>  	}
>>  
>>  	for (i = 0; i < ARRAY_SIZE(aic31xx->supplies); i++)
>>

Re: [PATCH v2 09/19] ASoC: tlv320aic31xx: Remove platform data

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 797 bytes --]

On Tue, Dec 05, 2017 at 03:20:19PM -0600, Andrew F. Davis wrote:
> On 12/01/2017 07:26 AM, Mark Brown wrote:

> > The advantage being...?  Not all architectures use DT or ACPI so it's
> > not clear that this is a step forwards in itself.

> Simplifies the code in several places, and you don't need to use DT or
> ACPI, it probes just fine anyway you normally add an I2C device.

> All we are dropping here is the platform_data way of specifying mic-bias
> voltage, which if you are wanting to do that in an out-of-tree board
> file, then I'm sure you can locally modify this driver to use your
> wanted voltage setting by default.

Then if you want to upstream the driver you'll have to add the platform
data support again.  Like I say not all architectures have anything
other than board files.

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]

Re: [PATCH v2 08/19] ASoC: tlv320aic31xx: Switch GPIO handling to use gpiod_* API

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 683 bytes --]

On Tue, Dec 05, 2017 at 03:23:49PM -0600, Andrew F. Davis wrote:
> On 12/04/2017 10:47 AM, Andrew F. Davis wrote:

> > Kbuild bot seems mad a this one, looks like I need to include
> > linux/gpio/consumer.h, will fix for v3.

> Looks like you already have this in your -next branch, how do you want
> this fix, I can send a delta patch with the added include, a new v3
> version that you can replace the patch in-tree with, or if it's easier
> for you manually fix in-tree?

As the patch applied mail says:

| 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.

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]

Re: [PATCH v2 09/19] ASoC: tlv320aic31xx: Remove platform data

[Andrew F. Davis]

On 12/06/2017 06:45 AM, Mark Brown wrote:
> On Tue, Dec 05, 2017 at 03:20:19PM -0600, Andrew F. Davis wrote:
>> On 12/01/2017 07:26 AM, Mark Brown wrote:
> 
>>> The advantage being...?  Not all architectures use DT or ACPI so it's
>>> not clear that this is a step forwards in itself.
> 
>> Simplifies the code in several places, and you don't need to use DT or
>> ACPI, it probes just fine anyway you normally add an I2C device.
> 
>> All we are dropping here is the platform_data way of specifying mic-bias
>> voltage, which if you are wanting to do that in an out-of-tree board
>> file, then I'm sure you can locally modify this driver to use your
>> wanted voltage setting by default.
> 
> Then if you want to upstream the driver you'll have to add the platform
> data support again.  Like I say not all architectures have anything
> other than board files.
> 

Then they can try, but they will rightfully get nack'd and told to stop
using board files and use DT/ACPI. Most upstream architectures don't use
board files anymore anyway, so I doubt this will ever happen.

Besides, if they haven't upstreamed their code then it is their problem
if this patch breaks them, we shouldn't hold up upstream work for
out-of-tree code, especially theoretical out-of-tree code that will
never exist.

Re: [PATCH v2 16/19] ASoC: tlv320aic31xx: Add short circuit detection support

[Andrew F. Davis]

On 12/01/2017 09:57 AM, Mark Brown wrote:
> On Fri, Dec 01, 2017 at 09:32:12AM -0600, Andrew F. Davis wrote:
>> On 12/01/2017 07:39 AM, Mark Brown wrote:
> 
>>> Is the interrupt only available on GPIO1?
> 
>> Some devices can route this to GPIO2 IIRC.
> 
>> I'm not sure how that would be supported, I think we would need to add
>> interrupt names to DT so users could specify which gpio they wired their
>> IRQ lines to.
> 
>> interrupt = <&host 23>;
>> interrupt-name = "gpio2";
> 
>> or similar?
> 
> You could also use pinctrl an require the user to mux the interrupt in
> whatever fashion makes sense for their device.
> 

If done at that layer then no change is needed in the driver right? We
just request and use the IRQ passed to us from i2c data.

Re: [PATCH v2 18/19] ASoC: tlv320aic31xx: Add headphone/headset detection

[Andrew F. Davis]

On 12/01/2017 07:41 AM, Mark Brown wrote:
> On Wed, Nov 29, 2017 at 03:32:59PM -0600, Andrew F. Davis wrote:
>> This device can detect the insertion/removal of headphones and headsets.
>> Enable reporting this status by enabling this interrupt and forwarding
>> this to upper-layers if a jack has been defined.
>>
>> This jack definition and the resulting operation from a jack detection
>> event must currently be defined by sound card platform code until CODEC
>> outputs to jack mappings can be defined generically.
> 
> This only does half the job, there's no way for anything to specify a
> jack here.
> 

Other CODECs drivers expose some kind of platform/machine specific
function(s) to send the jack definition to the CODEC, we seem to be
missing a generic way to report jack information up to the machine layer
driver.

Perhaps a struct with a jack enable/disable and call-back functions
could be created when registering the codec/platform component driver?
Then machines can hook to this as they need?

Re: [PATCH v2 09/19] ASoC: tlv320aic31xx: Remove platform data

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 760 bytes --]

On Wed, Dec 06, 2017 at 10:19:28AM -0600, Andrew F. Davis wrote:
> On 12/06/2017 06:45 AM, Mark Brown wrote:

> > Then if you want to upstream the driver you'll have to add the platform
> > data support again.  Like I say not all architectures have anything
> > other than board files.

> Then they can try, but they will rightfully get nack'd and told to stop
> using board files and use DT/ACPI. Most upstream architectures don't use
> board files anymore anyway, so I doubt this will ever happen.

No.  To repeat, not all architectures use DT or ACPI.  Expecting someone
to impelement DT or ACPI support for an entire architecture and try to
bring the ecosystem for that architecture along in order to add machine
support is obviously totally unreasonable.

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]

Re: [PATCH v2 18/19] ASoC: tlv320aic31xx: Add headphone/headset detection

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 481 bytes --]

On Wed, Dec 06, 2017 at 11:25:15AM -0600, Andrew F. Davis wrote:
> On 12/01/2017 07:41 AM, Mark Brown wrote:

> > This only does half the job, there's no way for anything to specify a
> > jack here.

> Other CODECs drivers expose some kind of platform/machine specific
> function(s) to send the jack definition to the CODEC, we seem to be

Your driver doesn't do that.

> missing a generic way to report jack information up to the machine layer
> driver.

snd_soc_codec_set_jack()

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]

Re: [PATCH v2 18/19] ASoC: tlv320aic31xx: Add headphone/headset detection

[Andrew F. Davis]

On 12/06/2017 11:32 AM, Mark Brown wrote:
> On Wed, Dec 06, 2017 at 11:25:15AM -0600, Andrew F. Davis wrote:
>> On 12/01/2017 07:41 AM, Mark Brown wrote:
> 
>>> This only does half the job, there's no way for anything to specify a
>>> jack here.
> 
>> Other CODECs drivers expose some kind of platform/machine specific
>> function(s) to send the jack definition to the CODEC, we seem to be
> 
> Your driver doesn't do that.
> 

Right, I don't have a specific machine in mind so didn't wan to do it
that way.

>> missing a generic way to report jack information up to the machine layer
>> driver.
> 
> snd_soc_codec_set_jack()
> 

Hmm, this looks close to what I was thinking (I was wanting to go the
other direction and have the codec report what jacks it supports, this
could allow for more than one jack), I'll see if I can make it work.

Re: [PATCH v2 09/19] ASoC: tlv320aic31xx: Remove platform data

[Andrew F. Davis]

On 12/06/2017 11:30 AM, Mark Brown wrote:
> On Wed, Dec 06, 2017 at 10:19:28AM -0600, Andrew F. Davis wrote:
>> On 12/06/2017 06:45 AM, Mark Brown wrote:
> 
>>> Then if you want to upstream the driver you'll have to add the platform
>>> data support again.  Like I say not all architectures have anything
>>> other than board files.
> 
>> Then they can try, but they will rightfully get nack'd and told to stop
>> using board files and use DT/ACPI. Most upstream architectures don't use
>> board files anymore anyway, so I doubt this will ever happen.
> 
> No.  To repeat, not all architectures use DT or ACPI.  Expecting someone
> to impelement DT or ACPI support for an entire architecture and try to
> bring the ecosystem for that architecture along in order to add machine
> support is obviously totally unreasonable.
> 

That would be unreasonable I agree, but it's also completely
hypothetical, as again, there are no in-tree users and most platforms
are DT/ACPI, so the odds of anyone needing it are next to nothing.

Re: [PATCH v2 18/19] ASoC: tlv320aic31xx: Add headphone/headset detection

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 624 bytes --]

On Wed, Dec 06, 2017 at 11:47:14AM -0600, Andrew F. Davis wrote:
> On 12/06/2017 11:32 AM, Mark Brown wrote:

> >> missing a generic way to report jack information up to the machine layer
> >> driver.

> > snd_soc_codec_set_jack()

> Hmm, this looks close to what I was thinking (I was wanting to go the
> other direction and have the codec report what jacks it supports, this
> could allow for more than one jack), I'll see if I can make it work.

Almost always the CODEC requires some extra connections in order to
enable jack detection features, these are going to be board specific so
they come from the machine driver.

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]

Re: [PATCH v2 09/19] ASoC: tlv320aic31xx: Remove platform data

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 667 bytes --]

On Wed, Dec 06, 2017 at 11:48:43AM -0600, Andrew F. Davis wrote:

> That would be unreasonable I agree, but it's also completely
> hypothetical, as again, there are no in-tree users and most platforms
> are DT/ACPI, so the odds of anyone needing it are next to nothing.

You're removing support for something someone might want to use for no
clear gain.  The bar for doing that needs to be higher than just random
cleanup, it needs to actively bring some benefit that justifies the
cost.  If something is sitting there not getting in the way and is
potentially going to be helpful for something in the future then there
needs to be a positive reason to take it away.

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]

Re: [PATCH v2 09/19] ASoC: tlv320aic31xx: Remove platform data

[Andrew F. Davis]

On 12/06/2017 12:15 PM, Mark Brown wrote:
> On Wed, Dec 06, 2017 at 11:48:43AM -0600, Andrew F. Davis wrote:
> 
>> That would be unreasonable I agree, but it's also completely
>> hypothetical, as again, there are no in-tree users and most platforms
>> are DT/ACPI, so the odds of anyone needing it are next to nothing.
> 
> You're removing support for something someone might want to use for no
> clear gain.  The bar for doing that needs to be higher than just random
> cleanup, it needs to actively bring some benefit that justifies the
> cost.  If something is sitting there not getting in the way and is
> potentially going to be helpful for something in the future then there
> needs to be a positive reason to take it away.
> 

For some userspace feature sure, but this is kernel code, there is no
guarantee for a sable API, in fact some would probably argue even
further that there is a guarantee that stuff *will* change and this is a
good thing as it kinda serves to punish for those you don't try to upstream.

So the helpfulness bar should be zero for changes that break out-of-tree
stuff.

Even more so this patch isn't a zero gain, the cleaner, better looking,
and easier to maintain code *is* the benefit in itself. Plus we gain the
ability to set mic-gain voltage with ACPI, something you couldn't do
before this patch.

Re: [PATCH v2 09/19] ASoC: tlv320aic31xx: Remove platform data

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 1470 bytes --]

On Wed, Dec 06, 2017 at 12:40:45PM -0600, Andrew F. Davis wrote:

> For some userspace feature sure, but this is kernel code, there is no
> guarantee for a sable API, in fact some would probably argue even
> further that there is a guarantee that stuff *will* change and this is a
> good thing as it kinda serves to punish for those you don't try to upstream.

> So the helpfulness bar should be zero for changes that break out-of-tree
> stuff.

There is no need to actively get in people's way or put up barriers to
people who do in future decide to upstream things, that doesn't help
anyone.

> Even more so this patch isn't a zero gain, the cleaner, better looking,
> and easier to maintain code *is* the benefit in itself. Plus we gain the
> ability to set mic-gain voltage with ACPI, something you couldn't do
> before this patch.

If this patch adds ACPI support then the patch description was clearly
not great (I don't think I read the patch itself since the description
just said that it was removing platform data without giving a reason,
that's the main review comment here). 

If you want to use the device property stuff that's fine but there's no
need to remove platform data to do that, it's a smaller change.  I find
it hard to see the platform data as a particularly big blight on the
code here, looking at the driver it's just going to remove the "pdata."
from a few variable accesses which isn't exactly transformational.

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]

Re: [PATCH v2 09/19] ASoC: tlv320aic31xx: Remove platform data

[Andrew F. Davis]

On 12/06/2017 01:11 PM, Mark Brown wrote:
> On Wed, Dec 06, 2017 at 12:40:45PM -0600, Andrew F. Davis wrote:
> 
>> For some userspace feature sure, but this is kernel code, there is no
>> guarantee for a sable API, in fact some would probably argue even
>> further that there is a guarantee that stuff *will* change and this is a
>> good thing as it kinda serves to punish for those you don't try to upstream.
> 
>> So the helpfulness bar should be zero for changes that break out-of-tree
>> stuff.
> 
> There is no need to actively get in people's way or put up barriers to
> people who do in future decide to upstream things, that doesn't help
> anyone.
> 
>> Even more so this patch isn't a zero gain, the cleaner, better looking,
>> and easier to maintain code *is* the benefit in itself. Plus we gain the
>> ability to set mic-gain voltage with ACPI, something you couldn't do
>> before this patch.
> 
> If this patch adds ACPI support then the patch description was clearly
> not great (I don't think I read the patch itself since the description
> just said that it was removing platform data without giving a reason,
> that's the main review comment here). 
> 

I may not be clear that the ACPI part is new, but the message does say
"and switch to using fwnode(DT/ACPI)"

> If you want to use the device property stuff that's fine but there's no
> need to remove platform data to do that, it's a smaller change.  I find
> it hard to see the platform data as a particularly big blight on the
> code here, looking at the driver it's just going to remove the "pdata."
> from a few variable accesses which isn't exactly transformational.
> 

If keeping platform data is that important to you then I will split the
patch into fwnode addition and pdata removal, you can just not take the
pdata removal if you don't want it.

Re: [PATCH v2 16/19] ASoC: tlv320aic31xx: Add short circuit detection support

[Andrew F. Davis]

On 12/01/2017 09:32 AM, Andrew F. Davis wrote:
> On 12/01/2017 07:39 AM, Mark Brown wrote:
>> On Wed, Nov 29, 2017 at 03:32:57PM -0600, Andrew F. Davis wrote:
>>
>>> +static irqreturn_t aic31xx_irq(int irq, void *data)
>>> +{
>>> +	struct aic31xx_priv *aic31xx = (struct aic31xx_priv *)data;
>>
>> There is no need to cast away from void, doing so can only mask bugs.
>>
>>> +	ret = regmap_read(aic31xx->regmap, AIC31XX_INTRDACFLAG, &value);
>>> +	if (ret) {
>>> +		dev_err(dev, "Failed to read interrupt mask: %d\n", ret);
>>> +		return IRQ_NONE;
>>> +	}
>>> +
>>> +	if (value & AIC31XX_HPLSCDETECT)
>>> +		dev_err(dev, "Short circuit on Left output is detected\n");
>>> +	if (value & AIC31XX_HPRSCDETECT)
>>> +		dev_err(dev, "Short circuit on Right output is detected\n");
>>> +
>>> +	return IRQ_HANDLED;
>>
>> This will report the interrupt as handled even if we didn't see an
>> interrupt we understand which will break shared interrupt lines.  At the
>> very least we should log other interrupt sources numerically.
>>
> 
> Okay, I think I can make that work by checking if no bits are set in the
> interrupt regs and returning early if not, IRQ_NONE.
> 

This turned out to be more difficult than I expected, plus if I do
handle an interrupt it doesn't mean the other device did not right? So
this wouldn't fix shared lines as far as I can tell, but I don't
register it as shared so this should be fine.

As for your other suggestion of "log other interrupt sources
numerically", could you explain this or point to an example of what you
mean?

>>> +	if (aic31xx->irq > 0) {
>>> +		regmap_update_bits(aic31xx->regmap, AIC31XX_GPIO1,
>>> +				   AIC31XX_GPIO1_FUNC_MASK,
>>> +				   AIC31XX_GPIO1_INT1 <<
>>> +				   AIC31XX_GPIO1_FUNC_SHIFT);
>>
>> Is the interrupt only available on GPIO1?
>>
> 
> Some devices can route this to GPIO2 IIRC.
> 
> I'm not sure how that would be supported, I think we would need to add
> interrupt names to DT so users could specify which gpio they wired their
> IRQ lines to.
> 
> interrupt = <&host 23>;
> interrupt-name = "gpio2";
> 
> or similar?
> 

Re: [PATCH v2 16/19] ASoC: tlv320aic31xx: Add short circuit detection support

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 992 bytes --]

On Wed, Dec 06, 2017 at 02:22:39PM -0600, Andrew F. Davis wrote:
> On 12/01/2017 09:32 AM, Andrew F. Davis wrote:

> >> This will report the interrupt as handled even if we didn't see an
> >> interrupt we understand which will break shared interrupt lines.  At the
> >> very least we should log other interrupt sources numerically.

> > Okay, I think I can make that work by checking if no bits are set in the
> > interrupt regs and returning early if not, IRQ_NONE.

> This turned out to be more difficult than I expected, plus if I do
> handle an interrupt it doesn't mean the other device did not right? So
> this wouldn't fix shared lines as far as I can tell, but I don't
> register it as shared so this should be fine.

It'll mean that we don't offer the interrupt to anything else sharing
the line.

> As for your other suggestion of "log other interrupt sources
> numerically", could you explain this or point to an example of what you
> mean?

Just print out the bits that were set.

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]

Re: [PATCH v2 16/19] ASoC: tlv320aic31xx: Add short circuit detection support

[Andrew F. Davis]

On 12/07/2017 06:03 AM, Mark Brown wrote:
> On Wed, Dec 06, 2017 at 02:22:39PM -0600, Andrew F. Davis wrote:
>> On 12/01/2017 09:32 AM, Andrew F. Davis wrote:
> 
>>>> This will report the interrupt as handled even if we didn't see an
>>>> interrupt we understand which will break shared interrupt lines.  At the
>>>> very least we should log other interrupt sources numerically.
> 
>>> Okay, I think I can make that work by checking if no bits are set in the
>>> interrupt regs and returning early if not, IRQ_NONE.
> 
>> This turned out to be more difficult than I expected, plus if I do
>> handle an interrupt it doesn't mean the other device did not right? So
>> this wouldn't fix shared lines as far as I can tell, but I don't
>> register it as shared so this should be fine.
> 
> It'll mean that we don't offer the interrupt to anything else sharing
> the line.
> 
>> As for your other suggestion of "log other interrupt sources
>> numerically", could you explain this or point to an example of what you
>> mean?
> 
> Just print out the bits that were set.
> 

I don't see anyone else doing this, what would that solve? Maybe I still
don't get what you mean here. :(

Re: [PATCH v2 16/19] ASoC: tlv320aic31xx: Add short circuit detection support

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 728 bytes --]

On Thu, Dec 07, 2017 at 09:37:36AM -0600, Andrew F. Davis wrote:
> On 12/07/2017 06:03 AM, Mark Brown wrote:

> >> As for your other suggestion of "log other interrupt sources
> >> numerically", could you explain this or point to an example of what you
> >> mean?

> > Just print out the bits that were set.

> I don't see anyone else doing this, what would that solve? Maybe I still
> don't get what you mean here. :(

A good proportion of devices require explicit acks for interrupts and
only ack things they handled so don't have this issue, and otherwise
it's common to just handle all the interrupts that the device might
fire.  The goal is to not silently eat interrupts if the device starts
interrupting for some reason.

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]