Like the gxl, the Amlogic g12a and sm1 SoC families have a t9015 internal audio DAC. On these more recent SoCs, any of the 3 TDM outputs can be routed to the internal DAC. This routing is done by a small glue device called 'toacodec'. This patchset adds support for it.
This was tested on the amlogic reference design g12a-u200.
Changes since v1 [0]: * Fixup patch 2 which was left in an intermediate state after rebasing, missing part of the changes. Thanks to Sergey Bolshakov for reporting it.
[0]: https://lore.kernel.org/r/20200221122242.1500093-1-jbrunet@baylibre.com
Jerome Brunet (3): ASoC: meson: g12a: add toacodec dt-binding documentation ASoC: meson: g12a: add internal DAC glue driver ASoC: meson: axg-card: add toacodec support
.../bindings/sound/amlogic,g12a-toacodec.yaml | 51 ++++ .../dt-bindings/sound/meson-g12a-toacodec.h | 10 + sound/soc/meson/Kconfig | 9 + sound/soc/meson/Makefile | 2 + sound/soc/meson/axg-card.c | 3 +- sound/soc/meson/g12a-toacodec.c | 252 ++++++++++++++++++ 6 files changed, 326 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/sound/amlogic,g12a-toacodec.yaml create mode 100644 include/dt-bindings/sound/meson-g12a-toacodec.h create mode 100644 sound/soc/meson/g12a-toacodec.c