ASoC: uniphier: add support for UniPhier AIO CPU DAI driver

This patch adds CPU DAI driver for UniPhier AIO audio sound system.

This module provides PCM devices for all input/output port of AIO
such as I2S, S/PDIF.
Signed-off-by: Katsuhiro Suzuki <suzuki.katsuhiro@socionext.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/uniphier/Makefile

 # SPDX-License-Identifier: GPL-2.0
-snd-soc-uniphier-aio-cpu-objs := aio-core.o aio-dma.o
+snd-soc-uniphier-aio-cpu-objs := aio-core.o aio-dma.o aio-cpu.o
 
 obj-$(CONFIG_SND_SOC_UNIPHIER_AIO) += snd-soc-uniphier-aio-cpu.o
 

sound/soc/uniphier/aio.h

@@ -306,6 +306,15 @@ static inline struct uniphier_aio *uniphier_priv(struct snd_soc_dai *dai)
 
 int uniphier_aiodma_soc_register_platform(struct platform_device *pdev);
 
+int uniphier_aio_dai_probe(struct snd_soc_dai *dai);
+int uniphier_aio_dai_remove(struct snd_soc_dai *dai);
+int uniphier_aio_dai_suspend(struct snd_soc_dai *dai);
+int uniphier_aio_dai_resume(struct snd_soc_dai *dai);
+int uniphier_aio_probe(struct platform_device *pdev);
+int uniphier_aio_remove(struct platform_device *pdev);
+extern const struct snd_soc_dai_ops uniphier_aio_i2s_ops;
+extern const struct snd_soc_dai_ops uniphier_aio_spdif_ops;
+
 u64 aio_rb_cnt(struct uniphier_aio_sub *sub);
 u64 aio_rbt_cnt_to_end(struct uniphier_aio_sub *sub);
 u64 aio_rb_space(struct uniphier_aio_sub *sub);