rk3288 use Designware HDMI IP, Designware HDMI supports four interfaces to config hdmi audio(I2S, S/PDIF, Generic Parallel Audio, AHB Audio DMA), but rk3288 only support two ways to config hdmi audio(I2S, S/PDIF), So we take I2S as hdmi audio operation interfaces, and then treat hdmi audio as an standard ALSA devices(only got platback function). Four things we have done: 1. modify the audio part of dw_hdmi drivers for rk3288 platform specific. 2. add codec driver for hdmi audio, and creat codec device dynamically in hdmi driver probe function, using platform_register_device_full way, so that hdmi codec driver can connected with hdmi driver. 3. add sound driver for hdmi audio, creat hdmi audio sound card. 4. add dt-bings file and add hdmi_audio node to corresponding dt file. [Explanation]: those patch is depend on patch by Andy Yan drm: bridge/dw_hdmi: add rockchip rk3288 support see https://patchwork.kernel.org/patch/5442361/ Yakir Yang (6): drm: bridge/dw_hdmi: add hdmi audio config interfaces drm: bridge/bridge: add support for rk3288 hdmi-audio ASoC: dw-hdmi-audio: add codec driver for dw hdmi audio ASoC: rockchip-hdmi-audio: add sound driver for hdmi audio dt-bindings: Add documentation for Rockchip hdmi-audio ARM: dts: rockchip: add hdmi audio nodes .../sound/rockchip,rockchip-hdmi-audio.txt | 16 + arch/arm/boot/dts/rk3288-evb.dtsi | 11 + arch/arm/boot/dts/rk3288.dtsi | 8 + drivers/gpu/drm/bridge/dw_hdmi.c | 32 +- include/drm/bridge/dw_hdmi.h | 12 + sound/soc/codecs/Kconfig | 4 + sound/soc/codecs/Makefile | 2 + sound/soc/codecs/dw-hdmi-audio.c | 371 +++++++++++++++++++++ sound/soc/codecs/dw-hdmi-audio.h | 82 +++++ sound/soc/rockchip/Kconfig | 9 + sound/soc/rockchip/Makefile | 2 + sound/soc/rockchip/rockchip_hdmi_audio.c | 208 ++++++++++++ 12 files changed, 756 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/sound/rockchip,rockchip-hdmi-audio.txt create mode 100644 sound/soc/codecs/dw-hdmi-audio.c create mode 100644 sound/soc/codecs/dw-hdmi-audio.h create mode 100644 sound/soc/rockchip/rockchip_hdmi_audio.c -- 2.1.2 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
