ASoC: omap-hdmi-audio: Add platform device for OMAP HDMI audio support

The platform device should only be registered from OMAPDSS HDMI
driver. The platform driver registers and unregisters all ASoC
components needed for OMAP HDMI audio.

The hdmi audio driver implements cpu-dai component using the callbacks
provided by OMAPDSS and registers the component under DSS HDMI
device. Omap-pcm is registered for platform component also under DSS
HDMI device. Dummy codec is used as as codec component. The hdmi audio
driver implements also the card and registers it under its own
platform device.

Signed-off-by: Jyri Sarha <jsarha@ti.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/sound/soc/omap/Kconfig b/sound/soc/omap/Kconfig
index d44463a7b0fa..2b32b3e58bf1 100644
--- a/sound/soc/omap/Kconfig
+++ b/sound/soc/omap/Kconfig
@@ -15,6 +15,21 @@ config SND_OMAP_SOC_MCPDM
 config SND_OMAP_SOC_HDMI
         tristate
 
+config SND_OMAP_SOC_HDMI_AUDIO
+        tristate "HDMI audio support for OMAP4+ based SoCs"
+        depends on SND_OMAP_SOC
+        help
+          For HDMI audio to work OMAPDSS HDMI support should be
+          enabled.
+          The hdmi audio driver implements cpu-dai component using the
+          callbacks provided by OMAPDSS and registers the component
+          under DSS HDMI device. Omap-pcm is registered for platform
+          component also under DSS HDMI device. Dummy codec is used as
+          as codec component. The hdmi audio driver implements also
+          the card and registers it under its own platform device.
+          The device for the dirver is registered by OMAPDSS hdmi
+          driver.
+
 config SND_OMAP_SOC_N810
         tristate "SoC Audio support for Nokia N810"
         depends on SND_OMAP_SOC && MACH_NOKIA_N810 && I2C