| Message ID | 20240809-fp5-dp-sound-v1-0-d7ba2c24f6b9@fairphone.com |
|---|---|
| Headers | show |
| Series | Add DisplayPort sound support for Fairphone 5 smartphone | expand |
On 9.08.2024 10:33 AM, Luca Weiss wrote: > Add the necessary sound card bits and some dts additions to enable sound > over DisplayPort-over-USB-C, e.g. to a connected TV or monitor. > > The UCM files can be found here: > https://gitlab.com/postmarketOS/pmaports/-/tree/master/device/testing/device-fairphone-fp5/ucm > > Two extra notes: > > 1. I don't quite understand whether the sound driver should have > SoC-specific compatible or device-specific compatible. Some earlier > patches by another author for a QCM6490 board and a QCS6490 board use > device-specific compatible - but from what I can tell this is not how > it's generally done for other sound drivers? > > 2. Unfortunately DisplayPort enablement itself for Fairphone 5 is not > upstream yet. This is blocked by DSI display bringup upstream which > is blocked by DSC 1:1:1 not being supported upstream yet and just > working with a hacky patch. Nevertheless, DisplayPort audio was > validated working with no additional sound-related changes so once > DisplayPort gets enabled, sound should also just work upstream. You can enable DP and keep DSI disabled for the time being Konrad
Add the necessary sound card bits and some dts additions to enable sound over DisplayPort-over-USB-C, e.g. to a connected TV or monitor. The UCM files can be found here: https://gitlab.com/postmarketOS/pmaports/-/tree/master/device/testing/device-fairphone-fp5/ucm Two extra notes: 1. I don't quite understand whether the sound driver should have SoC-specific compatible or device-specific compatible. Some earlier patches by another author for a QCM6490 board and a QCS6490 board use device-specific compatible - but from what I can tell this is not how it's generally done for other sound drivers? 2. Unfortunately DisplayPort enablement itself for Fairphone 5 is not upstream yet. This is blocked by DSI display bringup upstream which is blocked by DSC 1:1:1 not being supported upstream yet and just working with a hacky patch. Nevertheless, DisplayPort audio was validated working with no additional sound-related changes so once DisplayPort gets enabled, sound should also just work upstream. Signed-off-by: Luca Weiss <luca.weiss@fairphone.com> --- Luca Weiss (3): ASoC: dt-bindings: qcom,sm8250: Add generic QCM6490 sound card ASoC: qcom: sc8280xp: Add support for generic QCM6490 arm64: dts: qcom: qcm6490-fairphone-fp5: Add DisplayPort sound support .../devicetree/bindings/sound/qcom,sm8250.yaml | 1 + arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts | 37 ++++++++++++++++++++++ sound/soc/qcom/sc8280xp.c | 1 + 3 files changed, 39 insertions(+) --- base-commit: 6cdb38a56eaf615abc60fbeec0e4ccbdf93468e3 change-id: 20240809-fp5-dp-sound-b3768f3019bd Best regards,