ASoC: cs4349: Add support for Cirrus Logic CS4349

Signed-off-by: Tim Howe <tim.howe@cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/sound/cs4349.txt

+CS4349 audio CODEC
+
+Required properties:
+
+  - compatible : "cirrus,cs4349"
+
+  - reg : the I2C address of the device for I2C
+
+Optional properties:
+
+  - reset-gpios : a GPIO spec for the reset pin.
+
+Example:
+
+codec: cs4349@48 {
+        compatible = "cirrus,cs4349";
+        reg = <0x48>;
+        reset-gpios = <&gpio 54 0>;
+};

sound/soc/codecs/Kconfig

@@ -53,6 +53,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_CS4271_I2C if I2C
 	select SND_SOC_CS4271_SPI if SPI_MASTER
 	select SND_SOC_CS42XX8_I2C if I2C
+	select SND_SOC_CS4349 if I2C
 	select SND_SOC_CX20442 if TTY
 	select SND_SOC_DA7210 if SND_SOC_I2C_AND_SPI
 	select SND_SOC_DA7213 if I2C
@@ -403,6 +404,11 @@ config SND_SOC_CS42XX8_I2C
 	select SND_SOC_CS42XX8
 	select REGMAP_I2C
 
+# Cirrus Logic CS4349 HiFi DAC
+config SND_SOC_CS4349
+	tristate "Cirrus Logic CS4349 CODEC"
+	depends on I2C
+
 config SND_SOC_CX20442
 	tristate
 	depends on TTY

sound/soc/codecs/Makefile

@@ -45,6 +45,7 @@ snd-soc-cs4271-i2c-objs := cs4271-i2c.o
 snd-soc-cs4271-spi-objs := cs4271-spi.o
 snd-soc-cs42xx8-objs := cs42xx8.o
 snd-soc-cs42xx8-i2c-objs := cs42xx8-i2c.o
+snd-soc-cs4349-objs := cs4349.o
 snd-soc-cx20442-objs := cx20442.o
 snd-soc-da7210-objs := da7210.o
 snd-soc-da7213-objs := da7213.o
@@ -232,6 +233,7 @@ obj-$(CONFIG_SND_SOC_CS4271_I2C)	+= snd-soc-cs4271-i2c.o
 obj-$(CONFIG_SND_SOC_CS4271_SPI)	+= snd-soc-cs4271-spi.o
 obj-$(CONFIG_SND_SOC_CS42XX8)	+= snd-soc-cs42xx8.o
 obj-$(CONFIG_SND_SOC_CS42XX8_I2C) += snd-soc-cs42xx8-i2c.o
+obj-$(CONFIG_SND_SOC_CS4349)	+= snd-soc-cs4349.o
 obj-$(CONFIG_SND_SOC_CX20442)	+= snd-soc-cx20442.o
 obj-$(CONFIG_SND_SOC_DA7210)	+= snd-soc-da7210.o
 obj-$(CONFIG_SND_SOC_DA7213)	+= snd-soc-da7213.o

sound/soc/codecs/cs4349.h

+/*
+ * ALSA SoC CS4349 codec driver
+ *
+ * Copyright 2015 Cirrus Logic, Inc.
+ *
+ * Author: Tim Howe <Tim.Howe@cirrus.com>
+ *
+ * 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 __CS4349_H__
+#define __CS4349_H__
+
+struct cs4349_platform_data {
+
+	/* GPIO for Reset */
+	unsigned int gpio_nreset;
+
+};
+
+/* CS4349 registers addresses */
+#define CS4349_CHIPID		0x01	/* Device and Rev ID, Read Only */
+#define CS4349_MODE		0x02	/* Mode Control */
+#define CS4349_VMI		0x03	/* Volume, Mixing, Inversion Control */
+#define CS4349_MUTE		0x04	/* Mute Control */
+#define CS4349_VOLA		0x05	/* DAC Channel A Volume Control */
+#define CS4349_VOLB		0x06	/* DAC Channel B Volume Control */
+#define CS4349_RMPFLT		0x07	/* Ramp and Filter Control */
+#define CS4349_MISC		0x08	/* Power Down,Freeze Control,Pop Stop*/
+
+#define CS4349_FIRSTREG		0x01
+#define CS4349_LASTREG		0x08
+#define CS4349_NUMREGS		(CS4349_LASTREG - CS4349_FIRSTREG + 1)
+#define CS4349_I2C_INCR		0x80
+
+
+/* Device and Revision ID */
+#define CS4349_REVA		0xF0	/* Rev A */
+#define CS4349_REVB		0xF1	/* Rev B */
+#define CS4349_REVC2		0xFF	/* Rev C2 */
+
+
+/* PDN_DONE Poll Maximum
+ * If soft ramp is set it will take much longer to power down
+ * the system.
+ */
+#define PDN_POLL_MAX		900
+
+
+/* Bitfield Definitions */
+
+/* CS4349_MODE */
+/* (Digital Interface Format, De-Emphasis Control, Functional Mode */
+#define DIF2			(1 << 6)
+#define DIF1			(1 << 5)
+#define DIF0			(1 << 4)
+#define DEM1			(1 << 3)
+#define DEM0			(1 << 2)
+#define FM1			(1 << 1)
+#define DIF_LEFT_JST		0x00
+#define DIF_I2S			0x01
+#define DIF_RGHT_JST16		0x02
+#define DIF_RGHT_JST24		0x03
+#define DIF_TDM0		0x04
+#define DIF_TDM1		0x05
+#define DIF_TDM2		0x06
+#define DIF_TDM3		0x07
+#define DIF_MASK		0x70
+#define MODE_FORMAT(x)		(((x)&7)<<4)
+#define DEM_MASK		0x0C
+#define NO_DEM			0x00
+#define DEM_441			0x04
+#define DEM_48K			0x08
+#define DEM_32K			0x0C
+#define FM_AUTO			0x00
+#define FM_SNGL			0x01
+#define FM_DBL			0x02
+#define FM_QUAD			0x03
+#define FM_SNGL_MIN		30000
+#define FM_SNGL_MAX		54000
+#define FM_DBL_MAX		108000
+#define FM_QUAD_MAX		216000
+#define FM_MASK			0x03
+
+/* CS4349_VMI (VMI = Volume, Mixing and Inversion Controls) */
+#define VOLBISA			(1 << 7)
+#define VOLAISB			(1 << 7)
+/* INVERT_A only available for Left Jstfd, Right Jstfd16 and Right Jstfd24 */
+#define INVERT_A		(1 << 6)
+/* INVERT_B only available for Left Jstfd, Right Jstfd16 and Right Jstfd24 */
+#define INVERT_B		(1 << 5)
+#define ATAPI3			(1 << 3)
+#define ATAPI2			(1 << 2)
+#define ATAPI1			(1 << 1)
+#define ATAPI0			(1 << 0)
+#define MUTEAB			0x00
+#define MUTEA_RIGHTB		0x01
+#define MUTEA_LEFTB		0x02
+#define MUTEA_SUMLRDIV2B	0x03
+#define RIGHTA_MUTEB		0x04
+#define RIGHTA_RIGHTB		0x05
+#define RIGHTA_LEFTB		0x06
+#define RIGHTA_SUMLRDIV2B	0x07
+#define LEFTA_MUTEB		0x08
+#define LEFTA_RIGHTB		0x09	/* Default */
+#define LEFTA_LEFTB		0x0A
+#define LEFTA_SUMLRDIV2B	0x0B
+#define SUMLRDIV2A_MUTEB	0x0C
+#define SUMLRDIV2A_RIGHTB	0x0D
+#define SUMLRDIV2A_LEFTB	0x0E
+#define SUMLRDIV2_AB		0x0F
+#define CHMIX_MASK		0x0F
+
+/* CS4349_MUTE */
+#define AUTOMUTE		(1 << 7)
+#define MUTEC_AB		(1 << 5)
+#define MUTE_A			(1 << 4)
+#define MUTE_B			(1 << 3)
+#define MUTE_AB_MASK		0x18
+
+/* CS4349_RMPFLT (Ramp and Filter Control) */
+#define SCZ1			(1 << 7)
+#define SCZ0			(1 << 6)
+#define RMP_UP			(1 << 5)
+#define RMP_DN			(1 << 4)
+#define FILT_SEL		(1 << 2)
+#define IMMDT_CHNG		0x31
+#define ZEROCRSS		0x71
+#define SOFT_RMP		0xB1
+#define SFTRMP_ZEROCRSS		0xF1
+#define SR_ZC_MASK		0xC0
+
+/* CS4349_MISC */
+#define PWR_DWN			(1 << 7)
+#define FREEZE			(1 << 5)
+#define POPG_EN			(1 << 4)
+
+#endif	/* __CS4349_H__ */