ASoC: rt1318: Add RT1318 audio amplifier driver

This is the initial i2s-based amplifier driver for rt1318.
Signed-off-by: Jack Yu <jack.yu@realtek.com>
Link: https://msgid.link/r/b3055442ce6d4994aa01aa1fad6ba1fe@realtek.comSigned-off-by: Mark Brown <broonie@kernel.org>

include/sound/rt1318.h

+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * linux/sound/rt1318.h -- Platform data for RT1318
+ *
+ * Copyright 2024 Realtek Semiconductor Corp.
+ */
+
+#ifndef __LINUX_SND_RT1318_H
+#define __LINUX_SND_RT1318_H
+
+struct rt1318_platform_data {
+	unsigned int init_r0_l;
+	unsigned int init_r0_r;
+};
+
+#endif

sound/soc/codecs/Kconfig

@@ -221,6 +221,7 @@ config SND_SOC_ALL_CODECS
 	imply SND_SOC_RT722_SDCA_SDW
 	imply SND_SOC_RT1308_SDW
 	imply SND_SOC_RT1316_SDW
+	imply SND_SOC_RT1318
 	imply SND_SOC_RT1318_SDW
 	imply SND_SOC_RT1320_SDW
 	imply SND_SOC_RT9120
@@ -1576,6 +1577,10 @@ config SND_SOC_RT1316_SDW
 	depends on SOUNDWIRE
 	select REGMAP_SOUNDWIRE
 
+config SND_SOC_RT1318
+	tristate
+	depends on I2C
+
 config SND_SOC_RT1318_SDW
 	tristate "Realtek RT1318 Codec - SDW"
 	depends on SOUNDWIRE

sound/soc/codecs/Makefile

@@ -222,6 +222,7 @@ snd-soc-rt1305-y := rt1305.o
 snd-soc-rt1308-y := rt1308.o
 snd-soc-rt1308-sdw-y := rt1308-sdw.o
 snd-soc-rt1316-sdw-y := rt1316-sdw.o
+snd-soc-rt1318-y := rt1318.o
 snd-soc-rt1318-sdw-y := rt1318-sdw.o
 snd-soc-rt1320-sdw-y := rt1320-sdw.o
 snd-soc-rt274-y := rt274.o
@@ -618,6 +619,7 @@ 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-$(CONFIG_SND_SOC_RT1318)	+= snd-soc-rt1318.o
 obj-$(CONFIG_SND_SOC_RT1318_SDW)	+= snd-soc-rt1318-sdw.o
 obj-$(CONFIG_SND_SOC_RT1320_SDW)	+= snd-soc-rt1320-sdw.o
 obj-$(CONFIG_SND_SOC_RT274)	+= snd-soc-rt274.o