ASoC: rt1318: Add RT1318 SDCA vendor-specific driver

This is the initial amplifier driver for rt1318 SDCA version.
Signed-off-by: Shuming Fan <shumingf@realtek.com>
Link: https://lore.kernel.org/r/20221108092727.13011-1-shumingf@realtek.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/Kconfig

@@ -199,6 +199,7 @@ config SND_SOC_ALL_CODECS
 	imply SND_SOC_RT715_SDCA_SDW
 	imply SND_SOC_RT1308_SDW
 	imply SND_SOC_RT1316_SDW
+	imply SND_SOC_RT1318_SDW
 	imply SND_SOC_RT9120
 	imply SND_SOC_SDW_MOCKUP
 	imply SND_SOC_SGTL5000
@@ -1311,6 +1312,11 @@ config SND_SOC_RT1316_SDW
 	depends on SOUNDWIRE
 	select REGMAP_SOUNDWIRE
 
+config SND_SOC_RT1318_SDW
+	tristate "Realtek RT1318 Codec - SDW"
+	depends on SOUNDWIRE
+	select REGMAP_SOUNDWIRE
+
 config SND_SOC_RT5514
 	tristate
 	depends on I2C

sound/soc/codecs/Makefile

@@ -196,6 +196,7 @@ snd-soc-rt1305-objs := rt1305.o
 snd-soc-rt1308-objs := rt1308.o
 snd-soc-rt1308-sdw-objs := rt1308-sdw.o
 snd-soc-rt1316-sdw-objs := rt1316-sdw.o
+snd-soc-rt1318-sdw-objs := rt1318-sdw.o
 snd-soc-rt274-objs := rt274.o
 snd-soc-rt286-objs := rt286.o
 snd-soc-rt298-objs := rt298.o
@@ -551,6 +552,7 @@ obj-$(CONFIG_SND_SOC_RT1305)	+= snd-soc-rt1305.o
 obj-$(CONFIG_SND_SOC_RT1308)	+= snd-soc-rt1308.o
 obj-$(CONFIG_SND_SOC_RT1308_SDW)	+= snd-soc-rt1308-sdw.o
 obj-$(CONFIG_SND_SOC_RT1316_SDW)	+= snd-soc-rt1316-sdw.o
+obj-$(CONFIG_SND_SOC_RT1318_SDW)	+= snd-soc-rt1318-sdw.o
 obj-$(CONFIG_SND_SOC_RT274)	+= snd-soc-rt274.o
 obj-$(CONFIG_SND_SOC_RT286)	+= snd-soc-rt286.o
 obj-$(CONFIG_SND_SOC_RT298)	+= snd-soc-rt298.o

sound/soc/codecs/rt1318-sdw.h

+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * rt1318-sdw.h -- RT1318 SDCA ALSA SoC audio driver header
+ *
+ * Copyright(c) 2022 Realtek Semiconductor Corp.
+ */
+
+#ifndef __RT1318_SDW_H__
+#define __RT1318_SDW_H__
+
+#include <linux/regmap.h>
+#include <linux/soundwire/sdw.h>
+#include <linux/soundwire/sdw_type.h>
+#include <linux/soundwire/sdw_registers.h>
+#include <sound/soc.h>
+
+/* imp-defined registers */
+#define RT1318_SAPU_SM 0x3203
+
+#define R1318_TCON	0xc203
+#define R1318_TCON_RELATED_1	0xc206
+
+#define R1318_SPK_TEMPERATRUE_PROTECTION_0	0xdb00
+#define R1318_SPK_TEMPERATRUE_PROTECTION_L_4	0xdb08
+#define R1318_SPK_TEMPERATRUE_PROTECTION_R_4	0xdd08
+
+#define R1318_SPK_TEMPERATRUE_PROTECTION_L_6	0xdb12
+#define R1318_SPK_TEMPERATRUE_PROTECTION_R_6	0xdd12
+
+#define RT1318_INIT_RECIPROCAL_REG_L_24		0xdbb5
+#define RT1318_INIT_RECIPROCAL_REG_L_23_16	0xdbb6
+#define RT1318_INIT_RECIPROCAL_REG_L_15_8	0xdbb7
+#define RT1318_INIT_RECIPROCAL_REG_L_7_0	0xdbb8
+#define RT1318_INIT_RECIPROCAL_REG_R_24		0xddb5
+#define RT1318_INIT_RECIPROCAL_REG_R_23_16	0xddb6
+#define RT1318_INIT_RECIPROCAL_REG_R_15_8	0xddb7
+#define RT1318_INIT_RECIPROCAL_REG_R_7_0	0xddb8
+
+#define RT1318_INIT_R0_RECIPROCAL_SYN_L_24 0xdbc5
+#define RT1318_INIT_R0_RECIPROCAL_SYN_L_23_16 0xdbc6
+#define RT1318_INIT_R0_RECIPROCAL_SYN_L_15_8 0xdbc7
+#define RT1318_INIT_R0_RECIPROCAL_SYN_L_7_0 0xdbc8
+#define RT1318_INIT_R0_RECIPROCAL_SYN_R_24 0xddc5
+#define RT1318_INIT_R0_RECIPROCAL_SYN_R_23_16 0xddc6
+#define RT1318_INIT_R0_RECIPROCAL_SYN_R_15_8 0xddc7
+#define RT1318_INIT_R0_RECIPROCAL_SYN_R_7_0 0xddc8
+
+#define RT1318_R0_COMPARE_FLAG_L	0xdb35
+#define RT1318_R0_COMPARE_FLAG_R	0xdd35
+
+#define RT1318_STP_INITIAL_RS_TEMP_H 0xdd93
+#define RT1318_STP_INITIAL_RS_TEMP_L 0xdd94
+
+/* RT1318 SDCA Control - function number */
+#define FUNC_NUM_SMART_AMP 0x04
+
+/* RT1318 SDCA entity */
+#define RT1318_SDCA_ENT_PDE23 0x31
+#define RT1318_SDCA_ENT_XU24 0x24
+#define RT1318_SDCA_ENT_FU21 0x03
+#define RT1318_SDCA_ENT_UDMPU21 0x02
+#define RT1318_SDCA_ENT_CS21 0x21
+#define RT1318_SDCA_ENT_SAPU 0x29
+
+/* RT1318 SDCA control */
+#define RT1318_SDCA_CTL_SAMPLE_FREQ_INDEX 0x10
+#define RT1318_SDCA_CTL_REQ_POWER_STATE 0x01
+#define RT1318_SDCA_CTL_FU_MUTE 0x01
+#define RT1318_SDCA_CTL_FU_VOLUME 0x02
+#define RT1318_SDCA_CTL_UDMPU_CLUSTER 0x10
+#define RT1318_SDCA_CTL_SAPU_PROTECTION_MODE 0x10
+#define RT1318_SDCA_CTL_SAPU_PROTECTION_STATUS 0x11
+
+/* RT1318 SDCA channel */
+#define CH_L 0x01
+#define CH_R 0x02
+
+/* sample frequency index */
+#define RT1318_SDCA_RATE_16000HZ		0x04
+#define RT1318_SDCA_RATE_32000HZ		0x07
+#define RT1318_SDCA_RATE_44100HZ		0x08
+#define RT1318_SDCA_RATE_48000HZ		0x09
+#define RT1318_SDCA_RATE_96000HZ		0x0b
+#define RT1318_SDCA_RATE_192000HZ		0x0d
+
+
+struct rt1318_sdw_priv {
+	struct snd_soc_component *component;
+	struct regmap *regmap;
+	struct sdw_slave *sdw_slave;
+	enum sdw_slave_status status;
+	struct sdw_bus_params params;
+	bool hw_init;
+	bool first_hw_init;
+};
+
+struct sdw_stream_data {
+	struct sdw_stream_runtime *sdw_stream;
+};
+
+#endif /* __RT1318_SDW_H__ */