We found Designware hdmi driver only support audio clock config, we can not play sound through it.
To add Designware HDMI Audio support, we make those patch set:
1): fixed dw_hdmi irq bug, add irq control to suspend/resume interfaces.
2): add suspend/resume callback for dw_hdmi rockchip driver.
3): Warp irq control in functions.
4): Combine hdmi_set_clock_regenerator_n() and hdmi_regenerate_cts()
5): Adjust n/cts config order.
6): Set ncts_atomic_write & cts_manual, according to dw_hdmi document.
7): Add audio support for more display resolutions(eg. 800x600).
8): Add audio support for No-CEA display resolutions.
9): Add Audio Sample Channel Status config interfaces to dw_hdmi driver.
10): add audio clock control interfaces to dw_hdmi driver.
11): creat "dw_hdmi-audio" platform device in dw_hdmi driver.
12): add codec driver for hdmi audio, callback dw_hdmi audio config functions.
13): add sound driver for hdmi audio, creat hdmi audio sound card.
14): add dt-bings file and add hdmi_audio node to corresponding dt file.
Changes in v4:
-Correct phy_type assignment bug
- Combine CTS3 registers setting, reduce register operate times
- Combine N3 registers setting
- Add hdmi audio support when monitor support audio
- Give HDMI_FC_AUD_SCHNL8 an readable value
- Rename "hdmi_audio_*" to "dw_hdmi_audio_*"
- Replace delaywork with irq thread, and add suspend/resume interfaces,
Replace "dw-hdmi-audio" with consecutive strings.
- Add ".pm = &snd_soc_pm_ops,"
Changes in v3:
- Clear Hotplug interrupts before dw_hdmi_fb_register
- Wrap irq control in fucntions
- Setting the .pm member instead of suspend/resume
- Add ID registers parse and record
- Combine hdmi_set_clock_regenerator_n() and hdmi_regenerate_cts()
- Only adjust the n/cts setting order
- Set ncts_atomic_write & cts_manual
- Determine whether sample channel should set by desig_id.
- Delete hdmi_audio_config interface and modify audio clock control functions
- Remove audio_config & get_connect_status callback functions
and add write/read/mod register callback functions
- Keep audio format config function in dw-hdmi-audio driver
and remove audio_config & get_connect_status functions,
move jack control to dw-hdmi-audio completely.
- Delete the operation of jack in rockchip-hdmi-audio driver,
get ready to switch to simple-audio-card driver.
- modify cpu-of-node to i2s-controller
Changes in v2:
- Add irq control to suspend/resume interfaces
- Add suspend/resume support for dw_hdmi_rockchip driver
- add more n/cts combinations for more display resolutions
- Enable audio support for No-CEA display mode
- Add audio sample channel status setting
- Add audio config interfaces to dw_hdmi driver
- Update the audio control interfaces
- Update dw_hdmi audio control interfaces, and adjust jack report process
- give "codec-name" & "codec-dai-name" an const name
- remove codec-name and codec-dai-name
- rename rockchip,rockchip-hdmi-audio.txt to rockchip,rockchip-dw-hdmi-audio.txt
Daniel Kurtz (3):
drm: bridge/dw_hdmi: adjust n/cts setting order
drm: bridge/dw_hdmi: set ncts_atomic_write & cts_manual
drm: bridge/dw_hdmi: add audio sample channel status setting
Yakir Yang (12):
drm: bridge/dw_hdmi: add irq control to suspend/resume
drm: bridge/dw_hdmi: wrap irq control in fucntions
drm: rockchip/dw_hdmi_rockchip: add resume/suspend support
drm: bridge/dw_hdmi: add identification registers parse and record
drm: bridge/dw_hdmi: combine hdmi_set_clock_regenerator_n() and
hdmi_regenerate_cts()
drm: bridge/dw_hdmi: add audio support for more display resolutions
drm: bridge/dw_hdmi: enable audio support for No-CEA display
resolutions
drm: bridge/dw_hdmi: add enable/disable to dw_hdmi_audio callbacks
drm: bridge/dw_hdmi: creat dw-hdmi-audio platform device
ASoC: codec/dw-hdmi-audio: add codec driver for dw hdmi audio
ASoC: rockchip/rockchip-hdmi-audio: add sound driver for hdmi audio
dt-bindings: Add documentation for Rockchip dw-hdmi-audio
.../sound/rockchip,rockchip-dw-hdmi-audio.txt | 12 +
drivers/gpu/drm/bridge/dw_hdmi.c | 385 ++++++++++++++++++---
drivers/gpu/drm/bridge/dw_hdmi.h | 53 ++-
drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c | 16 +
include/drm/bridge/dw_hdmi.h | 17 +
sound/soc/codecs/Kconfig | 4 +
sound/soc/codecs/Makefile | 2 +
sound/soc/codecs/dw-hdmi-audio.c | 379 ++++++++++++++++++++
sound/soc/codecs/dw-hdmi-audio.h | 74 ++++
sound/soc/rockchip/Kconfig | 9 +
sound/soc/rockchip/Makefile | 2 +
sound/soc/rockchip/rockchip_hdmi_audio.c | 169 +++++++++
12 files changed, 1076 insertions(+), 46 deletions(-)
create mode 100644 Documentation/devicetree/bindings/sound/rockchip,rockchip-dw-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
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