From: Jeeja KP <jeeja.kp@xxxxxxxxx> Display port 1.2 introduces new capability Multi-stream transport (MST) which will allow multiple stream to route to single display port where multiple monitors are connected. Multiple monitors will be connected by a MST Hub or a monitor capable of daisy-chaining. With MST support, a pin can support multiple ports and on each port a monitor can be connected. This is preparatory patch series to enable DP MST Audio by extending the current design from pin to port. o i915 acomp APIs are now used to read the ELD info and support is extended for MST port as well. o Configure port/pin/audio infoframe in widget event handlers for dynamic routing when monitor is connected/disconnected instead of DAI ops. o Use set_tdm slot to set the stream tag instead of dai params and store it in pcm context and use this in configuring the converter in widget event handler. o With MST, pin mux for CVT selection will be used to select CVT for pin-port instead of pin. So create the pin mux accordingly and update the route in skl/bxt machines. o add channel map support in bxtn machines. Note: o This changes require UCM conf modification, once this series is accepted, I will post the UCM change. o This series depends on DRM changes to enable MST and changes are already merged in 4.10-rc1 branch. Changes v2: Split the patchs to smaller series. Changes v3: o rebased on latest branch o Removed already merged patch. Changes v4: o rebased on latest branch o Removed already merged patch. Jeeja KP (5): ASoC: hdac_hdmi: Begin to add support for DP Multi-stream audio ASoC: Intel: Skylake: Add route change to nau88l25_max98357a machine ASoC: Intel: Skylake: Add route change to nau88l25_ssm4567 machine ASoC: Intel: bxt: Add route change to rt298 machine ASoC: hdac_hdmi: Add support to handle MST capable pin sound/soc/codecs/hdac_hdmi.c | 416 +++++++++++++++--------- sound/soc/intel/boards/bxt_rt298.c | 6 +- sound/soc/intel/boards/skl_nau88l25_max98357a.c | 8 +- sound/soc/intel/boards/skl_nau88l25_ssm4567.c | 9 +- 4 files changed, 274 insertions(+), 165 deletions(-) -- 2.5.0 _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
