ASoC: rk3036: Inno codec driver for RK3036 SoC

RK3036 SoC integrated with an Inno audio codec.
This driver implements the functions of it.

There is not need a special machine driver, since the
simple-card machine driver works perfect in this case.
Signed-off-by: ZhengShunQian <zhengsq@rock-chips.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/Kconfig

@@ -67,6 +67,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_ES8328_I2C if I2C
 	select SND_SOC_GTM601
 	select SND_SOC_ICS43432
+	select SND_SOC_INNO_RK3036
 	select SND_SOC_ISABELLE if I2C
 	select SND_SOC_JZ4740_CODEC
 	select SND_SOC_LM4857 if I2C
@@ -471,6 +472,9 @@ config SND_SOC_GTM601
 config SND_SOC_ICS43432
 	tristate
 
+config SND_SOC_INNO_RK3036
+	tristate "Inno codec driver for RK3036 SoC"
+
 config SND_SOC_ISABELLE
         tristate
 

sound/soc/codecs/Makefile

@@ -60,6 +60,7 @@ snd-soc-es8328-i2c-objs := es8328-i2c.o
 snd-soc-es8328-spi-objs := es8328-spi.o
 snd-soc-gtm601-objs := gtm601.o
 snd-soc-ics43432-objs := ics43432.o
+snd-soc-inno-rk3036-objs := inno_rk3036.o
 snd-soc-isabelle-objs := isabelle.o
 snd-soc-jz4740-codec-objs := jz4740.o
 snd-soc-l3-objs := l3.o
@@ -255,6 +256,7 @@ obj-$(CONFIG_SND_SOC_ES8328_I2C)+= snd-soc-es8328-i2c.o
 obj-$(CONFIG_SND_SOC_ES8328_SPI)+= snd-soc-es8328-spi.o
 obj-$(CONFIG_SND_SOC_GTM601)    += snd-soc-gtm601.o
 obj-$(CONFIG_SND_SOC_ICS43432)	+= snd-soc-ics43432.o
+obj-$(CONFIG_SND_SOC_INNO_RK3036)	+= snd-soc-inno-rk3036.o
 obj-$(CONFIG_SND_SOC_ISABELLE)	+= snd-soc-isabelle.o
 obj-$(CONFIG_SND_SOC_JZ4740_CODEC)	+= snd-soc-jz4740-codec.o
 obj-$(CONFIG_SND_SOC_L3)	+= snd-soc-l3.o

sound/soc/codecs/inno_rk3036.h

+/*
+ * Driver of Inno Codec for rk3036 by Rockchip Inc.
+ *
+ * Author: Zheng ShunQian<zhengsq@rock-chips.com>
+ */
+
+#ifndef _INNO_RK3036_CODEC_H
+#define _INNO_RK3036_CODEC_H
+
+/* codec registers */
+#define INNO_R00	0x00
+#define INNO_R01	0x0c
+#define INNO_R02	0x10
+#define INNO_R03	0x14
+#define INNO_R04	0x88
+#define INNO_R05	0x8c
+#define INNO_R06	0x90
+#define INNO_R07	0x94
+#define INNO_R08	0x98
+#define INNO_R09	0x9c
+#define INNO_R10	0xa0
+
+/* register bit filed */
+#define INNO_R00_CSR_RESET		(0x0 << 0) /*codec system reset*/
+#define INNO_R00_CSR_WORK		(0x1 << 0)
+#define INNO_R00_CDCR_RESET		(0x0 << 1) /*codec digital core reset*/
+#define INNO_R00_CDCR_WORK		(0x1 << 1)
+#define INNO_R00_PRB_DISABLE		(0x0 << 6) /*power reset bypass*/
+#define INNO_R00_PRB_ENABLE		(0x1 << 6)
+
+#define INNO_R01_I2SMODE_MSK		(0x1 << 4)
+#define INNO_R01_I2SMODE_SLAVE		(0x0 << 4)
+#define INNO_R01_I2SMODE_MASTER		(0x1 << 4)
+#define INNO_R01_PINDIR_MSK		(0x1 << 5)
+#define INNO_R01_PINDIR_IN_SLAVE	(0x0 << 5) /*direction of pin*/
+#define INNO_R01_PINDIR_OUT_MASTER	(0x1 << 5)
+
+#define INNO_R02_LRS_MSK		(0x1 << 2)
+#define INNO_R02_LRS_NORMAL		(0x0 << 2) /*DAC Left Right Swap*/
+#define INNO_R02_LRS_SWAP		(0x1 << 2)
+#define INNO_R02_DACM_MSK		(0x3 << 3)
+#define INNO_R02_DACM_PCM		(0x3 << 3) /*DAC Mode*/
+#define INNO_R02_DACM_I2S		(0x2 << 3)
+#define INNO_R02_DACM_LJM		(0x1 << 3)
+#define INNO_R02_DACM_RJM		(0x0 << 3)
+#define INNO_R02_VWL_MSK		(0x3 << 5)
+#define INNO_R02_VWL_32BIT		(0x3 << 5) /*1/2Frame Valid Word Len*/
+#define INNO_R02_VWL_24BIT		(0x2 << 5)
+#define INNO_R02_VWL_20BIT		(0x1 << 5)
+#define INNO_R02_VWL_16BIT		(0x0 << 5)
+#define INNO_R02_LRCP_MSK		(0x1 << 7)
+#define INNO_R02_LRCP_NORMAL		(0x0 << 7) /*Left Right Polarity*/
+#define INNO_R02_LRCP_REVERSAL		(0x1 << 7)
+
+#define INNO_R03_BCP_MSK		(0x1 << 0)
+#define INNO_R03_BCP_NORMAL		(0x0 << 0) /*DAC bit clock polarity*/
+#define INNO_R03_BCP_REVERSAL		(0x1 << 0)
+#define INNO_R03_DACR_MSK		(0x1 << 1)
+#define INNO_R03_DACR_RESET		(0x0 << 1) /*DAC Reset*/
+#define INNO_R03_DACR_WORK		(0x1 << 1)
+#define INNO_R03_FWL_MSK		(0x3 << 2)
+#define INNO_R03_FWL_32BIT		(0x3 << 2) /*1/2Frame Word Length*/
+#define INNO_R03_FWL_24BIT		(0x2 << 2)
+#define INNO_R03_FWL_20BIT		(0x1 << 2)
+#define INNO_R03_FWL_16BIT		(0x0 << 2)
+
+#define INNO_R04_DACR_SW_SHIFT		0
+#define INNO_R04_DACL_SW_SHIFT		1
+#define INNO_R04_DACR_CLK_SHIFT		2
+#define INNO_R04_DACL_CLK_SHIFT		3
+#define INNO_R04_DACR_VREF_SHIFT	4
+#define INNO_R04_DACL_VREF_SHIFT	5
+
+#define INNO_R05_HPR_EN_SHIFT		0
+#define INNO_R05_HPL_EN_SHIFT		1
+#define INNO_R05_HPR_WORK_SHIFT		2
+#define INNO_R05_HPL_WORK_SHIFT		3
+
+#define INNO_R06_VOUTR_CZ_SHIFT		0
+#define INNO_R06_VOUTL_CZ_SHIFT		1
+#define INNO_R06_DACR_HILO_VREF_SHIFT	2
+#define INNO_R06_DACL_HILO_VREF_SHIFT	3
+#define INNO_R06_DAC_EN_SHIFT		5
+
+#define INNO_R06_DAC_PRECHARGE		(0x0 << 4) /*PreCharge control for DAC*/
+#define INNO_R06_DAC_DISCHARGE		(0x1 << 4)
+
+#define INNO_HP_GAIN_SHIFT		0
+/* Gain of output, 1.5db step: -39db(0x0) ~ 0db(0x1a) ~ 6db(0x1f) */
+#define INNO_HP_GAIN_0DB		0x1a
+#define INNO_HP_GAIN_N39DB		0x0
+
+#define INNO_R09_HP_ANTIPOP_MSK		0x3
+#define INNO_R09_HP_ANTIPOP_OFF		0x1
+#define INNO_R09_HP_ANTIPOP_ON		0x2
+#define INNO_R09_HPR_ANITPOP_SHIFT	0
+#define INNO_R09_HPL_ANITPOP_SHIFT	2
+#define INNO_R09_HPR_MUTE_SHIFT		4
+#define INNO_R09_HPL_MUTE_SHIFT		5
+#define INNO_R09_DACR_SWITCH_SHIFT	6
+#define INNO_R09_DACL_SWITCH_SHIFT	7
+
+#define INNO_R10_CHARGE_SEL_CUR_400I_YES	(0x0 << 0)
+#define INNO_R10_CHARGE_SEL_CUR_400I_NO		(0x1 << 0)
+#define INNO_R10_CHARGE_SEL_CUR_260I_YES	(0x0 << 1)
+#define INNO_R10_CHARGE_SEL_CUR_260I_NO		(0x1 << 1)
+#define INNO_R10_CHARGE_SEL_CUR_130I_YES	(0x0 << 2)
+#define INNO_R10_CHARGE_SEL_CUR_130I_NO		(0x1 << 2)
+#define INNO_R10_CHARGE_SEL_CUR_100I_YES	(0x0 << 3)
+#define INNO_R10_CHARGE_SEL_CUR_100I_NO		(0x1 << 3)
+#define INNO_R10_CHARGE_SEL_CUR_050I_YES	(0x0 << 4)
+#define INNO_R10_CHARGE_SEL_CUR_050I_NO		(0x1 << 4)
+#define INNO_R10_CHARGE_SEL_CUR_027I_YES	(0x0 << 5)
+#define INNO_R10_CHARGE_SEL_CUR_027I_NO		(0x1 << 5)
+
+#define INNO_R10_MAX_CUR (INNO_R10_CHARGE_SEL_CUR_400I_YES | \
+			  INNO_R10_CHARGE_SEL_CUR_260I_YES | \
+			  INNO_R10_CHARGE_SEL_CUR_130I_YES | \
+			  INNO_R10_CHARGE_SEL_CUR_100I_YES | \
+			  INNO_R10_CHARGE_SEL_CUR_050I_YES | \
+			  INNO_R10_CHARGE_SEL_CUR_027I_YES)
+
+#endif