ASoC: uniphier: add support for UniPhier AIO compress audio

This patch adds support of UniPhier AIO compress audio.
For passing through compress audio to S/PDIF.
Signed-off-by: Katsuhiro Suzuki <suzuki.katsuhiro@socionext.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/uniphier/Kconfig

@@ -11,6 +11,7 @@ config SND_SOC_UNIPHIER
 config SND_SOC_UNIPHIER_AIO
 	tristate "UniPhier AIO DAI Driver"
 	select REGMAP_MMIO
+	select SND_SOC_COMPRESS
 	depends on SND_SOC_UNIPHIER
 	help
 	  This adds ASoC driver support for Socionext UniPhier

sound/soc/uniphier/Makefile

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

sound/soc/uniphier/aio-dma.c

@@ -263,6 +263,7 @@ static const struct snd_soc_platform_driver uniphier_soc_platform = {
 	.pcm_new   = uniphier_aiodma_new,
 	.pcm_free  = uniphier_aiodma_free,
 	.ops       = &uniphier_aiodma_ops,
+	.compr_ops = &uniphier_aio_compr_ops,
 };
 
 static const struct regmap_config aiodma_regmap_config = {

sound/soc/uniphier/aio.h

@@ -305,6 +305,7 @@ static inline struct uniphier_aio *uniphier_priv(struct snd_soc_dai *dai)
 }
 
 int uniphier_aiodma_soc_register_platform(struct platform_device *pdev);
+extern const struct snd_compr_ops uniphier_aio_compr_ops;
 
 int uniphier_aio_dai_probe(struct snd_soc_dai *dai);
 int uniphier_aio_dai_remove(struct snd_soc_dai *dai);