path: root/target/linux/brcm2708/patches-4.14/950-0283-Driver-for-Allo-Katana-DAC.patch

From 1db90ec599e116593cc1844ccac021707b45c5cb Mon Sep 17 00:00:00 2001
From: allocom <sparky-dev@allo.com>
Date: Tue, 24 Apr 2018 11:19:03 +0530
Subject: [PATCH 283/454] Driver for Allo Katana DAC

---
 .../allo-katana-dac-audio-overlay.dts         |  27 +-
 sound/soc/bcm/Kconfig                         |   4 +-
 sound/soc/bcm/Makefile                        |   4 +-
 sound/soc/bcm/allo-katana-codec.c             | 363 ++++++++++++++++++
 sound/soc/bcm/allo-katana-dac.c               | 102 -----
 sound/soc/codecs/Kconfig                      |  10 -
 sound/soc/codecs/Makefile                     |   4 -
 sound/soc/codecs/sabre-ess-i2c.c              |  69 ----
 sound/soc/codecs/sabre-ess.c                  | 300 ---------------
 sound/soc/codecs/sabre-ess.h                  |  62 ---
 10 files changed, 387 insertions(+), 558 deletions(-)
 create mode 100644 sound/soc/bcm/allo-katana-codec.c
 delete mode 100644 sound/soc/bcm/allo-katana-dac.c
 delete mode 100644 sound/soc/codecs/sabre-ess-i2c.c
 delete mode 100644 sound/soc/codecs/sabre-ess.c
 delete mode 100644 sound/soc/codecs/sabre-ess.h

--- a/arch/arm/boot/dts/overlays/allo-katana-dac-audio-overlay.dts
+++ b/arch/arm/boot/dts/overlays/allo-katana-dac-audio-overlay.dts
@@ -1,7 +1,5 @@
 /*
  * Definitions for Allo Katana DAC boards
- *
- * NB. The Katana DAC board contains SABER DAC.
  */
 
 /dts-v1/;
@@ -13,7 +11,16 @@
 	fragment@0 {
 		target = <&i2s>;
 		__overlay__ {
+			#sound-dai-cells = <0>;
 			status = "okay";
+			cpu_port: port {
+				cpu_endpoint: endpoint {
+					remote-endpoint = <&codec_endpoint>;
+					bitclock-master = <&codec_endpoint>;
+					frame-master = <&codec_endpoint>;
+					dai-format = "i2s";
+				};
+			};
 		};
 	};
 
@@ -24,11 +31,15 @@
 			#size-cells = <0>;
 			status = "okay";
 
-			sabre-ess@30 {
+			allo-katana-codec@30 {
 				#sound-dai-cells = <0>;
-				compatible = "saber,sabre-ess";
+				compatible = "allo,allo-katana-codec";
 				reg = <0x30>;
-				status = "okay";
+				port {
+					codec_endpoint: endpoint {
+					remote-endpoint = <&cpu_endpoint>;
+					};
+				};
 			};
 		};
 	};
@@ -36,11 +47,11 @@
 	fragment@2 {
 		target = <&sound>;
 		katana_dac: __overlay__ {
-			compatible = "allo,katana-dac";
-			i2s-controller = <&i2s>;
+			compatible = "audio-graph-card";
+			label = "Allo Katana";
+			dais = <&cpu_port>;
 			status = "okay";
 		};
 	};
-
 };
 
--- a/sound/soc/bcm/Kconfig
+++ b/sound/soc/bcm/Kconfig
@@ -178,7 +178,9 @@ config SND_BCM2708_SOC_ALLO_DIGIONE
 config SND_BCM2708_SOC_ALLO_KATANA_DAC
 	tristate "Support for Allo Katana DAC"
 	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
-	select SND_SOC_SABRE_ESS_I2C
+	depends on I2C
+	select REGMAP_I2C
+	select SND_AUDIO_GRAPH_CARD
 	help
 	  Say Y or M if you want to add support for Allo Katana DAC.
 
--- a/sound/soc/bcm/Makefile
+++ b/sound/soc/bcm/Makefile
@@ -34,7 +34,7 @@ snd-soc-allo-boss-dac-objs := allo-boss-
 snd-soc-allo-piano-dac-objs := allo-piano-dac.o
 snd-soc-allo-piano-dac-plus-objs := allo-piano-dac-plus.o
 snd-soc-allo-digione-objs := allo-digione.o
-snd-soc-allo-katana-dac-objs := allo-katana-dac.o
+snd-soc-allo-katana-codec-objs := allo-katana-codec.o
 snd-soc-pisound-objs := pisound.o
 snd-soc-fe-pi-audio-objs := fe-pi-audio.o
 
@@ -61,6 +61,6 @@ obj-$(CONFIG_SND_BCM2708_SOC_ALLO_BOSS_D
 obj-$(CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC) += snd-soc-allo-piano-dac.o
 obj-$(CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC_PLUS) += snd-soc-allo-piano-dac-plus.o
 obj-$(CONFIG_SND_BCM2708_SOC_ALLO_DIGIONE) += snd-soc-allo-digione.o
-obj-$(CONFIG_SND_BCM2708_SOC_ALLO_KATANA_DAC) += snd-soc-allo-katana-dac.o
+obj-$(CONFIG_SND_BCM2708_SOC_ALLO_KATANA_DAC) += snd-soc-allo-katana-codec.o
 obj-$(CONFIG_SND_PISOUND) += snd-soc-pisound.o
 obj-$(CONFIG_SND_BCM2708_SOC_FE_PI_AUDIO) += snd-soc-fe-pi-audio.o
--- /dev/null
+++ b/sound/soc/bcm/allo-katana-codec.c
@@ -0,0 +1,363 @@
+/*
+ * Driver for the ALLO KATANA CODEC
+ *
+ * Author: Jaikumar <jaikumar@cem-solutions.net>
+ *		Copyright 2018
+ *
+ * This program 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 program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/clk.h>
+#include <linux/kernel.h>
+#include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
+#include <linux/gcd.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/pcm_params.h>
+#include <sound/tlv.h>
+#include <linux/i2c.h>
+
+
+#define KATANA_CODEC_CHIP_ID		0x30
+#define KATANA_CODEC_VIRT_BASE		0x100
+#define KATANA_CODEC_PAGE			0
+
+#define KATANA_CODEC_CHIP_ID_REG	(KATANA_CODEC_VIRT_BASE + 0)
+#define KATANA_CODEC_RESET			(KATANA_CODEC_VIRT_BASE + 1)
+#define KATANA_CODEC_VOLUME_1		(KATANA_CODEC_VIRT_BASE + 2)
+#define KATANA_CODEC_VOLUME_2		(KATANA_CODEC_VIRT_BASE + 3)
+#define KATANA_CODEC_MUTE			(KATANA_CODEC_VIRT_BASE + 4)
+#define KATANA_CODEC_DSP_PROGRAM	(KATANA_CODEC_VIRT_BASE + 5)
+#define KATANA_CODEC_DEEMPHASIS		(KATANA_CODEC_VIRT_BASE + 6)
+#define KATANA_CODEC_DOP			(KATANA_CODEC_VIRT_BASE + 7)
+#define KATANA_CODEC_FORMAT			(KATANA_CODEC_VIRT_BASE + 8)
+#define KATANA_CODEC_COMMAND		(KATANA_CODEC_VIRT_BASE + 9)
+#define KATANA_CODEC_MAX_REGISTER	(KATANA_CODEC_VIRT_BASE + 9)
+
+#define KATANA_CODEC_FMT			0xff
+#define KATANA_CODEC_CHAN_MONO		0x00
+#define KATANA_CODEC_CHAN_STEREO	0x80
+#define KATANA_CODEC_ALEN_16		0x10
+#define KATANA_CODEC_ALEN_24		0x20
+#define KATANA_CODEC_ALEN_32		0x30
+#define KATANA_CODEC_RATE_11025		0x01
+#define KATANA_CODEC_RATE_22050		0x02
+#define KATANA_CODEC_RATE_32000		0x03
+#define KATANA_CODEC_RATE_44100		0x04
+#define KATANA_CODEC_RATE_48000		0x05
+#define KATANA_CODEC_RATE_88200		0x06
+#define KATANA_CODEC_RATE_96000		0x07
+#define KATANA_CODEC_RATE_176400	0x08
+#define KATANA_CODEC_RATE_192000	0x09
+#define KATANA_CODEC_RATE_352800	0x0a
+#define KATANA_CODEC_RATE_384000	0x0b
+
+
+struct katana_codec_priv {
+	struct regmap *regmap;
+	int fmt;
+};
+
+static const struct reg_default katana_codec_reg_defaults[] = {
+	{ KATANA_CODEC_RESET,		0x00 },
+	{ KATANA_CODEC_VOLUME_1,	0xF0 },
+	{ KATANA_CODEC_VOLUME_2,	0xF0 },
+	{ KATANA_CODEC_MUTE,		0x00 },
+	{ KATANA_CODEC_DSP_PROGRAM,	0x04 },
+	{ KATANA_CODEC_DEEMPHASIS,	0x00 },
+	{ KATANA_CODEC_DOP,			0x01 },
+	{ KATANA_CODEC_FORMAT,		0xb4 },
+};
+
+static const char * const katana_codec_dsp_program_texts[] = {
+	"Linear Phase Fast Roll-off Filter",
+	"Linear Phase Slow Roll-off Filter",
+	"Minimum Phase Fast Roll-off Filter",
+	"Minimum Phase Slow Roll-off Filter",
+	"Apodizing Fast Roll-off Filter",
+	"Corrected Minimum Phase Fast Roll-off Filter",
+	"Brick Wall Filter",
+};
+
+static const unsigned int katana_codec_dsp_program_values[] = {
+	0,
+	1,
+	2,
+	3,
+	4,
+	6,
+	7,
+};
+
+static SOC_VALUE_ENUM_SINGLE_DECL(katana_codec_dsp_program,
+				  KATANA_CODEC_DSP_PROGRAM, 0, 0x07,
+				  katana_codec_dsp_program_texts,
+				  katana_codec_dsp_program_values);
+
+static const char * const katana_codec_deemphasis_texts[] = {
+	"Bypass",
+	"32kHz",
+	"44.1kHz",
+	"48kHz",
+};
+
+static const unsigned int katana_codec_deemphasis_values[] = {
+	0,
+	1,
+	2,
+	3,
+};
+
+static SOC_VALUE_ENUM_SINGLE_DECL(katana_codec_deemphasis,
+				  KATANA_CODEC_DEEMPHASIS, 0, 0x03,
+				  katana_codec_deemphasis_texts,
+				  katana_codec_deemphasis_values);
+
+static const SNDRV_CTL_TLVD_DECLARE_DB_MINMAX(master_tlv, -12700, 0);
+
+static const struct snd_kcontrol_new katana_codec_controls[] = {
+	SOC_DOUBLE_R_TLV("Master Playback Volume", KATANA_CODEC_VOLUME_1,
+			KATANA_CODEC_VOLUME_2, 0, 255, 1, master_tlv),
+	SOC_DOUBLE("Master Playback Switch", KATANA_CODEC_MUTE, 0, 0, 1, 1),
+	SOC_ENUM("DSP Program Route", katana_codec_dsp_program),
+	SOC_ENUM("Deemphasis Route", katana_codec_deemphasis),
+	SOC_SINGLE("DoP Playback Switch", KATANA_CODEC_DOP, 0, 1, 1)
+};
+
+static bool katana_codec_readable_register(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case KATANA_CODEC_CHIP_ID_REG:
+		return true;
+	default:
+		return reg < 0xff;
+	}
+}
+
+static int katana_codec_hw_params(struct snd_pcm_substream *substream,
+			     struct snd_pcm_hw_params *params,
+			     struct snd_soc_dai *dai)
+{
+	struct snd_soc_codec *codec = dai->codec;
+	struct katana_codec_priv *katana_codec = snd_soc_codec_get_drvdata(codec);
+	int fmt = 0;
+	int ret;
+
+	dev_dbg(codec->dev, "hw_params %u Hz, %u channels\n",
+			params_rate(params),
+			params_channels(params));
+
+	switch (katana_codec->fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+	case SND_SOC_DAIFMT_CBM_CFM: // master
+		if (params_channels(params) == 2)
+			fmt = KATANA_CODEC_CHAN_STEREO;
+		else
+			fmt = KATANA_CODEC_CHAN_MONO;
+
+		switch (params_width(params)) {
+		case 16:
+			fmt |= KATANA_CODEC_ALEN_16;
+			break;
+		case 24:
+			fmt |= KATANA_CODEC_ALEN_24;
+			break;
+		case 32:
+			fmt |= KATANA_CODEC_ALEN_32;
+			break;
+		default:
+			dev_err(codec->dev, "Bad frame size: %d\n",
+					params_width(params));
+			return -EINVAL;
+		}
+
+		switch (params_rate(params)) {
+		case 44100:
+			fmt |= KATANA_CODEC_RATE_44100;
+			break;
+		case 48000:
+			fmt |= KATANA_CODEC_RATE_48000;
+			break;
+		case 88200:
+			fmt |= KATANA_CODEC_RATE_88200;
+			break;
+		case 96000:
+			fmt |= KATANA_CODEC_RATE_96000;
+			break;
+		case 176400:
+			fmt |= KATANA_CODEC_RATE_176400;
+			break;
+		case 192000:
+			fmt |= KATANA_CODEC_RATE_192000;
+			break;
+		case 352800:
+			fmt |= KATANA_CODEC_RATE_352800;
+			break;
+		case 384000:
+			fmt |= KATANA_CODEC_RATE_384000;
+			break;
+		default:
+			dev_err(codec->dev, "Bad sample rate: %d\n",
+					params_rate(params));
+			return -EINVAL;
+		}
+
+		ret = regmap_write(katana_codec->regmap, KATANA_CODEC_FORMAT, fmt);
+		if (ret != 0) {
+			dev_err(codec->dev, "Failed to set format: %d\n", ret);
+			return ret;
+		}
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int katana_codec_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+	struct snd_soc_codec *codec = dai->codec;
+	struct katana_codec_priv *katana_codec = snd_soc_codec_get_drvdata(codec);
+
+	katana_codec->fmt = fmt;
+
+	return 0;
+}
+
+static const struct snd_soc_dai_ops katana_codec_dai_ops = {
+	.hw_params = katana_codec_hw_params,
+	.set_fmt = katana_codec_set_fmt,
+};
+
+static struct snd_soc_dai_driver katana_codec_dai = {
+	.name = "allo-katana-codec",
+	.playback = {
+		.stream_name = "Playback",
+		.channels_min = 2,
+		.channels_max = 2,
+		.rates = SNDRV_PCM_RATE_CONTINUOUS,
+		.rate_min = 44100,
+		.rate_max = 384000,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE |
+			SNDRV_PCM_FMTBIT_S32_LE
+	},
+	.ops = &katana_codec_dai_ops,
+};
+
+static struct snd_soc_codec_driver katana_codec_codec_driver = {
+	.idle_bias_off = false,
+
+	.component_driver = {
+		.controls		= katana_codec_controls,
+		.num_controls	= ARRAY_SIZE(katana_codec_controls),
+	},
+};
+
+static const struct regmap_range_cfg katana_codec_range = {
+	.name = "Pages", .range_min = KATANA_CODEC_VIRT_BASE,
+	.range_max = KATANA_CODEC_MAX_REGISTER,
+	.selector_reg = KATANA_CODEC_PAGE,
+	.selector_mask = 0xff,
+	.window_start = 0, .window_len = 0x100,
+};
+
+const struct regmap_config katana_codec_regmap = {
+	.reg_bits = 8,
+	.val_bits = 8,
+
+	.ranges = &katana_codec_range,
+	.num_ranges = 1,
+
+	.max_register = KATANA_CODEC_MAX_REGISTER,
+	.readable_reg = katana_codec_readable_register,
+	.reg_defaults = katana_codec_reg_defaults,
+	.num_reg_defaults = ARRAY_SIZE(katana_codec_reg_defaults),
+	.cache_type = REGCACHE_RBTREE,
+};
+
+static int allo_katana_codec_probe(struct i2c_client *i2c,
+			     const struct i2c_device_id *id)
+{
+	struct regmap *regmap;
+	struct regmap_config config = katana_codec_regmap;
+	struct device *dev = &i2c->dev;
+	struct katana_codec_priv *katana_codec;
+	unsigned int chip_id = 0;
+	int ret;
+
+	regmap = devm_regmap_init_i2c(i2c, &config);
+	if (IS_ERR(regmap))
+		return PTR_ERR(regmap);
+
+	katana_codec = devm_kzalloc(dev, sizeof(struct katana_codec_priv),
+								GFP_KERNEL);
+	if (!katana_codec)
+		return -ENOMEM;
+
+	dev_set_drvdata(dev, katana_codec);
+	katana_codec->regmap = regmap;
+
+	ret = regmap_read(regmap, KATANA_CODEC_CHIP_ID_REG, &chip_id);
+	if ((ret != 0) || (chip_id != KATANA_CODEC_CHIP_ID)) {
+		dev_err(dev, "Failed to read Chip or wrong Chip id: %d\n", ret);
+		return ret;
+	}
+	regmap_update_bits(regmap, KATANA_CODEC_RESET, 0x01, 0x01);
+	msleep(10);
+
+	ret = snd_soc_register_codec(dev, &katana_codec_codec_driver,
+				    &katana_codec_dai, 1);
+	if (ret != 0) {
+		dev_err(dev, "failed to register codec: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int allo_katana_codec_remove(struct i2c_client *i2c)
+{
+	snd_soc_unregister_codec(&i2c->dev);
+	return 0;
+}
+
+static const struct i2c_device_id allo_katana_codec_id[] = {
+	{ "allo-katana-codec", },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, allo_katana_codec_id);
+
+static const struct of_device_id allo_katana_codec_of_match[] = {
+	{ .compatible = "allo,allo-katana-codec", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, allo_katana_codec_of_match);
+
+static struct i2c_driver allo_katana_codec_driver = {
+	.probe		= allo_katana_codec_probe,
+	.remove		= allo_katana_codec_remove,
+	.id_table	= allo_katana_codec_id,
+	.driver		= {
+		.name	= "allo-katana-codec",
+		.of_match_table = allo_katana_codec_of_match,
+	},
+};
+
+module_i2c_driver(allo_katana_codec_driver);
+
+MODULE_DESCRIPTION("ASoC Allo Katana Codec Driver");
+MODULE_AUTHOR("Jaikumar <jaikumar@cem-solutions.net>");
+MODULE_LICENSE("GPL v2");
+
--- a/sound/soc/bcm/allo-katana-dac.c
+++ /dev/null
@@ -1,102 +0,0 @@
-/*
- * ASoC Driver for KATANA DAC
- *
- * Author:	Jaikumar <jaikumar@cem-solutions.net>
- *		Copyright 2018
- *
- * This program 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 program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- */
-
-#include <linux/module.h>
-#include <linux/platform_device.h>
-
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/soc.h>
-
-static struct snd_soc_dai_link snd_allo_katana_dac_dai[] = {
-{
-	.name		= "KATANA DAC",
-	.stream_name	= "KATANA DAC",
-	.cpu_dai_name	= "bcm2708-i2s.0",
-	.codec_dai_name	= "sabre-ess",
-	.platform_name	= "bcm2708-i2s.0",
-	.codec_name	= "sabre-ess.1-0030",
-	.dai_fmt	= SND_SOC_DAIFMT_I2S |
-		SND_SOC_DAIFMT_NB_NF |
-		SND_SOC_DAIFMT_CBM_CFM,
-},
-};
-
-/* audio machine driver */
-static struct snd_soc_card snd_allo_katana_dac = {
-	.name         = "snd_allo_katana_dac",
-	.owner        = THIS_MODULE,
-	.dai_link     = snd_allo_katana_dac_dai,
-	.num_links    = ARRAY_SIZE(snd_allo_katana_dac_dai),
-};
-
-static int snd_allo_katana_dac_probe(struct platform_device *pdev)
-{
-	int ret = 0;
-
-	snd_allo_katana_dac.dev = &pdev->dev;
-
-	if (pdev->dev.of_node) {
-		struct device_node *i2s_node;
-		struct snd_soc_dai_link *dai = &snd_allo_katana_dac_dai[0];
-
-		i2s_node = of_parse_phandle(pdev->dev.of_node,
-				"i2s-controller", 0);
-
-		if (i2s_node) {
-			dai->cpu_dai_name = NULL;
-			dai->cpu_of_node = i2s_node;
-			dai->platform_name = NULL;
-			dai->platform_of_node = i2s_node;
-		}
-	}
-
-	ret = snd_soc_register_card(&snd_allo_katana_dac);
-	if (ret && ret != -EPROBE_DEFER)
-		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
-					ret);
-
-	return ret;
-}
-
-static int snd_allo_katana_dac_remove(struct platform_device *pdev)
-{
-	return snd_soc_unregister_card(&snd_allo_katana_dac);
-}
-
-static const struct of_device_id snd_allo_katana_dac_of_match[] = {
-	{ .compatible = "allo,katana-dac", },
-	{},
-};
-MODULE_DEVICE_TABLE(of, snd_allo_katana_dac_of_match);
-
-static struct platform_driver snd_allo_katana_dac_driver = {
-	.driver = {
-		.name   = "snd-katana-dac",
-		.owner  = THIS_MODULE,
-		.of_match_table = snd_allo_katana_dac_of_match,
-	},
-	.probe          = snd_allo_katana_dac_probe,
-	.remove         = snd_allo_katana_dac_remove,
-};
-
-module_platform_driver(snd_allo_katana_dac_driver);
-
-MODULE_AUTHOR("Jaikumar <jaikumar@cem-solutions.net>");
-MODULE_DESCRIPTION("ALSA ASoC Machine Driver for Allo Katana DAC");
-MODULE_LICENSE("GPL v2");
-
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -77,7 +77,6 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_ES8328_SPI if SPI_MASTER
 	select SND_SOC_ES8328_I2C if I2C
 	select SND_SOC_ES7134
-	select SND_SOC_SABRE_ESS_I2C if I2C
 	select SND_SOC_GTM601
 	select SND_SOC_HDAC_HDMI
 	select SND_SOC_ICS43432
@@ -1187,13 +1186,4 @@ config SND_SOC_TPA6130A2
 	tristate "Texas Instruments TPA6130A2 headphone amplifier"
 	depends on I2C
 
-config SND_SOC_SABRE_ESS
-	tristate
-
-config SND_SOC_SABRE_ESS_I2C
-	tristate "Sabre SABRE ESS CODEC - I2C"
-	depends on I2C
-	select SND_SOC_SABRE_ESS
-	select REGMAP_I2C
-
 endmenu
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -71,8 +71,6 @@ snd-soc-es8316-objs := es8316.o
 snd-soc-es8328-objs := es8328.o
 snd-soc-es8328-i2c-objs := es8328-i2c.o
 snd-soc-es8328-spi-objs := es8328-spi.o
-snd-soc-sabre-ess-objs := sabre-ess.o
-snd-soc-sabre-ess-i2c-objs := sabre-ess-i2c.o
 snd-soc-gtm601-objs := gtm601.o
 snd-soc-hdac-hdmi-objs := hdac_hdmi.o
 snd-soc-ics43432-objs := ics43432.o
@@ -315,8 +313,6 @@ obj-$(CONFIG_SND_SOC_ES8316)    += snd-s
 obj-$(CONFIG_SND_SOC_ES8328)	+= snd-soc-es8328.o
 obj-$(CONFIG_SND_SOC_ES8328_I2C)+= snd-soc-es8328-i2c.o
 obj-$(CONFIG_SND_SOC_ES8328_SPI)+= snd-soc-es8328-spi.o
-obj-$(CONFIG_SND_SOC_SABRE_ESS) += snd-soc-sabre-ess.o
-obj-$(CONFIG_SND_SOC_SABRE_ESS_I2C) += snd-soc-sabre-ess-i2c.o
 obj-$(CONFIG_SND_SOC_GTM601)    += snd-soc-gtm601.o
 obj-$(CONFIG_SND_SOC_HDAC_HDMI) += snd-soc-hdac-hdmi.o
 obj-$(CONFIG_SND_SOC_ICS43432)	+= snd-soc-ics43432.o
--- a/sound/soc/codecs/sabre-ess-i2c.c
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
- * Driver for the SABRE ESS CODECs
- *
- * Author: Jaikumar <jaikumar@cem-solutions.net>	
- *		Copyright 2018
- *
- * This program 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 program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/i2c.h>
-
-#include "sabre-ess.h"
-
-static int sabre_ess_i2c_probe(struct i2c_client *i2c,
-			     const struct i2c_device_id *id)
-{
-	struct regmap *regmap;
-	struct regmap_config config = sabre_ess_regmap;
-
-	regmap = devm_regmap_init_i2c(i2c, &config);
-	if (IS_ERR(regmap))
-		return PTR_ERR(regmap);
-
-	return sabre_ess_probe(&i2c->dev, regmap);
-}
-
-static int sabre_ess_i2c_remove(struct i2c_client *i2c)
-{
-	sabre_ess_remove(&i2c->dev);
-	return 0;
-}
-
-static const struct i2c_device_id sabre_ess_i2c_id[] = {
-	{ "sabre-ess", },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, sabre_ess_i2c_id);
-
-static const struct of_device_id sabre_ess_of_match[] = {
-	{ .compatible = "saber,sabre-ess", },
-	{ }
-};
-MODULE_DEVICE_TABLE(of, sabre_ess_of_match);
-
-static struct i2c_driver sabre_ess_i2c_driver = {
-	.probe 		= sabre_ess_i2c_probe,
-	.remove 	= sabre_ess_i2c_remove,
-	.id_table	= sabre_ess_i2c_id,
-	.driver		= {
-		.name	= "sabre-ess",
-		.of_match_table = sabre_ess_of_match,
-	},
-};
-
-module_i2c_driver(sabre_ess_i2c_driver);
-
-MODULE_DESCRIPTION("ASoC SABRE ESS codec driver - I2C");
-MODULE_AUTHOR("Jaikumar <jaikumar@cem-solutions.net>");
-MODULE_LICENSE("GPL v2");
-
--- a/sound/soc/codecs/sabre-ess.c
+++ /dev/null
@@ -1,300 +0,0 @@
-/*
- * Driver for the SABRE ESS CODEC
- *
- * Author: Jaikumar <jaikumar@cem-solutions.net>
- *		Copyright 2018
- *
- * This program 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 program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- */
-
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/clk.h>
-#include <linux/kernel.h>
-#include <linux/pm_runtime.h>
-#include <linux/regmap.h>
-#include <linux/regulator/consumer.h>
-#include <linux/gcd.h>
-#include <sound/soc.h>
-#include <sound/soc-dapm.h>
-#include <sound/pcm_params.h>
-#include <sound/tlv.h>
-
-#include "sabre-ess.h"
-
-struct sabre_ess_priv {
-	struct regmap *regmap;
-	int fmt;
-};
-
-static const struct reg_default sabre_ess_reg_defaults[] = {
-	{ SABRE_ESS_RESET,			0x00 },
-	{ SABRE_ESS_VOLUME_1,		0xF0 },
-	{ SABRE_ESS_VOLUME_2,		0xF0 },
-	{ SABRE_ESS_MUTE,			0x00 },
-	{ SABRE_ESS_DSP_PROGRAM,	0x04 },
-	{ SABRE_ESS_DEEMPHASIS,		0x00 },
-	{ SABRE_ESS_DOP,			0x01 },
-	{ SABRE_ESS_FORMAT,			0xb4 },
-};
-
-static const char * const sabre_ess_dsp_program_texts[] = {
-	"Linear Phase Fast Roll-off Filter",
-	"Linear Phase Slow Roll-off Filter",
-	"Minimum Phase Fast Roll-off Filter",
-	"Minimum Phase Slow Roll-off Filter",
-	"Apodizing Fast Roll-off Filter",
-	"Corrected Minimum Phase Fast Roll-off Filter",
-	"Brick Wall Filter",
-};
-
-static const unsigned int sabre_ess_dsp_program_values[] = {
-	0,
-	1,
-	2,
-	3,
-	4,
-	6,
-	7,
-};
-
-static SOC_VALUE_ENUM_SINGLE_DECL(sabre_ess_dsp_program,
-				  SABRE_ESS_DSP_PROGRAM, 0, 0x07,
-				  sabre_ess_dsp_program_texts,
-				  sabre_ess_dsp_program_values);
-
-static const char * const sabre_ess_deemphasis_texts[] = {
-	"Bypass",
-	"32kHz",
-	"44.1kHz",
-	"48kHz",
-};
-
-static const unsigned int sabre_ess_deemphasis_values[] = {
-	0,
-	1,
-	2,
-	3,
-};
-
-static SOC_VALUE_ENUM_SINGLE_DECL(sabre_ess_deemphasis,
-				  SABRE_ESS_DEEMPHASIS, 0, 0x03,
-				  sabre_ess_deemphasis_texts,
-				  sabre_ess_deemphasis_values);
-
-static const SNDRV_CTL_TLVD_DECLARE_DB_MINMAX(master_tlv, -12700, 0);
-
-static const struct snd_kcontrol_new sabre_ess_controls[] = {
-	SOC_DOUBLE_R_TLV("Master Playback Volume", SABRE_ESS_VOLUME_1,
-			SABRE_ESS_VOLUME_2, 0, 255, 1, master_tlv),
-	SOC_DOUBLE("Master Playback Switch", SABRE_ESS_MUTE, 0, 0, 1, 1),
-	SOC_ENUM("DSP Program Route", sabre_ess_dsp_program),
-	SOC_ENUM("Deemphasis Route", sabre_ess_deemphasis),
-	SOC_SINGLE("DoP Playback Switch", SABRE_ESS_DOP, 0, 1, 1)
-};
-
-static bool sabre_ess_readable_register(struct device *dev, unsigned int reg)
-{
-	switch (reg) {
-	case SABRE_ESS_CHIP_ID_REG:
-		return true;
-	default:
-		return reg < 0xff;
-	}
-}
-
-static int sabre_ess_hw_params(struct snd_pcm_substream *substream,
-			     struct snd_pcm_hw_params *params,
-			     struct snd_soc_dai *dai)
-{
-	struct snd_soc_codec *codec = dai->codec;
-	struct sabre_ess_priv *sabre_ess = snd_soc_codec_get_drvdata(codec);
-	int fmt = 0;
-	int ret;
-
-	dev_dbg(codec->dev, "hw_params %u Hz, %u channels\n",
-			params_rate(params),
-			params_channels(params));
-
-	switch (sabre_ess->fmt & SND_SOC_DAIFMT_MASTER_MASK) {
-	case SND_SOC_DAIFMT_CBM_CFM: // master
-		if (params_channels(params) == 2)
-			fmt = SABRE_ESS_CHAN_STEREO;
-		else
-			fmt = SABRE_ESS_CHAN_MONO;
-
-		switch (params_width(params)) {
-		case 16:
-			fmt |= SABRE_ESS_ALEN_16;
-			break;
-		case 24:
-			fmt |= SABRE_ESS_ALEN_24;
-			break;
-		case 32:
-			fmt |= SABRE_ESS_ALEN_32;
-			break;
-		default:
-			dev_err(codec->dev, "Bad frame size: %d\n",
-					params_width(params));
-			return -EINVAL;
-		}
-
-		switch (params_rate(params)) {
-		case 44100:
-			fmt |= SABRE_ESS_RATE_44100;
-			break;
-		case 48000:
-			fmt |= SABRE_ESS_RATE_48000;
-			break;
-		case 88200:
-			fmt |= SABRE_ESS_RATE_88200;
-			break;
-		case 96000:
-			fmt |= SABRE_ESS_RATE_96000;
-			break;
-		case 176400:
-			fmt |= SABRE_ESS_RATE_176400;
-			break;
-		case 192000:
-			fmt |= SABRE_ESS_RATE_192000;
-			break;
-		case 352800:
-			fmt |= SABRE_ESS_RATE_352800;
-			break;
-		case 384000:
-			fmt |= SABRE_ESS_RATE_384000;
-			break;
-		default:
-			dev_err(codec->dev, "Bad sample rate: %d\n",
-					params_rate(params));
-			return -EINVAL;
-		}
-
-		ret = regmap_write(sabre_ess->regmap, SABRE_ESS_FORMAT, fmt);
-		if (ret != 0) {
-			dev_err(codec->dev, "Failed to set format: %d\n", ret);
-			return ret;
-		}
-		break;
-
-	default:
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-static int sabre_ess_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
-{
-	struct snd_soc_codec *codec = dai->codec;
-	struct sabre_ess_priv *sabre_ess = snd_soc_codec_get_drvdata(codec);
-
-	sabre_ess->fmt = fmt;
-
-	return 0;
-}
-
-static const struct snd_soc_dai_ops sabre_ess_dai_ops = {
-	.hw_params = sabre_ess_hw_params,
-	.set_fmt = sabre_ess_set_fmt,
-};
-
-static struct snd_soc_dai_driver sabre_ess_dai = {
-	.name = "sabre-ess",
-	.playback = {
-		.stream_name = "Playback",
-		.channels_min = 2,
-		.channels_max = 2,
-		.rates = SNDRV_PCM_RATE_CONTINUOUS,
-		.rate_min = 44100,
-		.rate_max = 384000,
-		.formats = SNDRV_PCM_FMTBIT_S16_LE |
-			SNDRV_PCM_FMTBIT_S32_LE
-	},
-	.ops = &sabre_ess_dai_ops,
-};
-
-static struct snd_soc_codec_driver sabre_ess_codec_driver = {
-	.idle_bias_off = false,
-
-	.component_driver = {
-		.controls		= sabre_ess_controls,
-		.num_controls	= ARRAY_SIZE(sabre_ess_controls),
-	},
-};
-
-static const struct regmap_range_cfg sabre_ess_range = {
-	.name = "Pages", .range_min = SABRE_ESS_VIRT_BASE,
-	.range_max = SABRE_ESS_MAX_REGISTER,
-	.selector_reg = SABRE_ESS_PAGE,
-	.selector_mask = 0xff,
-	.window_start = 0, .window_len = 0x100,
-};
-
-const struct regmap_config sabre_ess_regmap = {
-	.reg_bits = 8,
-	.val_bits = 8,
-
-	.ranges = &sabre_ess_range,
-	.num_ranges = 1,
-
-	.max_register = SABRE_ESS_MAX_REGISTER,
-	.readable_reg = sabre_ess_readable_register,
-	.reg_defaults = sabre_ess_reg_defaults,
-	.num_reg_defaults = ARRAY_SIZE(sabre_ess_reg_defaults),
-	.cache_type = REGCACHE_RBTREE,
-};
-EXPORT_SYMBOL_GPL(sabre_ess_regmap);
-
-int sabre_ess_probe(struct device *dev, struct regmap *regmap)
-{
-	struct sabre_ess_priv *sabre_ess;
-	unsigned int chip_id = 0;
-	int ret;
-
-	sabre_ess = devm_kzalloc(dev, sizeof(struct sabre_ess_priv),
-								GFP_KERNEL);
-	if (!sabre_ess)
-		return -ENOMEM;
-
-	dev_set_drvdata(dev, sabre_ess);
-	sabre_ess->regmap = regmap;
-
-	ret = regmap_read(regmap, SABRE_ESS_CHIP_ID_REG, &chip_id);
-	if ((ret != 0) || (chip_id != SABRE_ESS_CHIP_ID)) {
-		dev_err(dev, "Failed to read Chip or wrong Chip id: %d\n", ret);
-		return ret;
-	}
-	regmap_update_bits(regmap, SABRE_ESS_RESET, 0x01, 0x01);
-	msleep(10);
-
-	ret = snd_soc_register_codec(dev, &sabre_ess_codec_driver,
-				    &sabre_ess_dai, 1);
-	if (ret != 0) {
-		dev_err(dev, "failed to register codec: %d\n", ret);
-		return ret;
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(sabre_ess_probe);
-
-void sabre_ess_remove(struct device *dev)
-{
-	snd_soc_unregister_codec(dev);
-	pm_runtime_disable(dev);
-}
-EXPORT_SYMBOL_GPL(sabre_ess_remove);
-
-MODULE_DESCRIPTION("ASoC SABRE ESS codec driver");
-MODULE_AUTHOR("Jaikumar <jaikumar@cem-solutions.net>");
-MODULE_LICENSE("GPL v2");
-
--- a/sound/soc/codecs/sabre-ess.h
+++ /dev/null
@@ -1,62 +0,0 @@
-/*
- * Driver for the SABRE ESS CODEC
- *
- * Author: Jaikumar <jaikumar@cem-solutions.net>
- *		Copyright 2018
- *
- * This program 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 program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- */
-
-#ifndef _SND_SOC_SABRE_ESS_
-#define _SND_SOC_SABRE_ESS_
-
-#include <linux/pm.h>
-#include <linux/regmap.h>
-
-#define SABRE_ESS_CHIP_ID		0x30
-#define SABRE_ESS_VIRT_BASE		0x100
-#define SABRE_ESS_PAGE			0
-
-#define SABRE_ESS_CHIP_ID_REG	(SABRE_ESS_VIRT_BASE + 0)
-#define SABRE_ESS_RESET			(SABRE_ESS_VIRT_BASE + 1)
-#define SABRE_ESS_VOLUME_1		(SABRE_ESS_VIRT_BASE + 2)
-#define SABRE_ESS_VOLUME_2		(SABRE_ESS_VIRT_BASE + 3)
-#define SABRE_ESS_MUTE			(SABRE_ESS_VIRT_BASE + 4)
-#define SABRE_ESS_DSP_PROGRAM	(SABRE_ESS_VIRT_BASE + 5)
-#define SABRE_ESS_DEEMPHASIS	(SABRE_ESS_VIRT_BASE + 6)
-#define SABRE_ESS_DOP			(SABRE_ESS_VIRT_BASE + 7)
-#define SABRE_ESS_FORMAT		(SABRE_ESS_VIRT_BASE + 8)
-#define SABRE_ESS_COMMAND		(SABRE_ESS_VIRT_BASE + 9)
-#define SABRE_ESS_MAX_REGISTER	(SABRE_ESS_VIRT_BASE + 9)
-
-#define SABRE_ESS_FMT			0xff
-#define SABRE_ESS_CHAN_MONO		0x00
-#define SABRE_ESS_CHAN_STEREO	0x80
-#define SABRE_ESS_ALEN_16		0x10
-#define SABRE_ESS_ALEN_24		0x20
-#define SABRE_ESS_ALEN_32		0x30
-#define SABRE_ESS_RATE_11025	0x01
-#define SABRE_ESS_RATE_22050	0x02
-#define SABRE_ESS_RATE_32000	0x03
-#define SABRE_ESS_RATE_44100	0x04
-#define SABRE_ESS_RATE_48000	0x05
-#define SABRE_ESS_RATE_88200	0x06
-#define SABRE_ESS_RATE_96000	0x07
-#define SABRE_ESS_RATE_176400	0x08
-#define SABRE_ESS_RATE_192000	0x09
-#define SABRE_ESS_RATE_352800	0x0a
-#define SABRE_ESS_RATE_384000	0x0b
-
-extern const struct regmap_config sabre_ess_regmap;
-
-int sabre_ess_probe(struct device *dev, struct regmap *regmap);
-void sabre_ess_remove(struct device *dev);
-
-#endif /* _SND_SOC_SABRE_ESS_ */