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The Anbernic RG-DS uses two AW87391 ICs at 0x58 and 0x5B on i2c2. However, the manufacturer did not provide a firmware file, only a sequence of register writes to each device to enable and disable them. Add support for this *specific* configuration in the AW87390 driver. Since we are relying on a device specific sequence I am using a device specific compatible string. This driver does not currently support the aw87391 for any other device as I have none to test with valid firmware. Attempts to create firmware with the AwinicSCPv4 have not been successful. Chris Morgan (2): ASoC: dt-bindings: aw87390: Add Anbernic RG-DS Amplifier ASoC: codecs: aw87390: Add Anbernic RG-DS amplifier driver .../bindings/sound/awinic,aw87390.yaml | 34 +++- sound/soc/codecs/aw87390.c | 176 +++++++++++++++++- sound/soc/codecs/aw87390.h | 86 +++++++++ 3 files changed, 283 insertions(+), 13 deletions(-) -- 2.43.0