This patchset is derived from [1], with only the GPIO orientation. On the SM8550 platform, the PMIC Glink firmware doesn't emit ALTMODE events for all USB-C port changes like it was done for older platforms (like SM8450). This means we only have a valid orientation when an Altmode compliant device is inserted, but not for all the other devices, including USB cables, dongles and non-altmode Hubs. But the actual orientation is shared by the PM8550B by a signal called CC_OUT which can be read on a gpio of the SM8550 SoC. Let's add support for this feature by using the UCSI PMIC Glink driver events to read and dispatch the orientation to the USB-C connector devices on the DT graph. While everybody would prefer having a proper PMIC Glink event for an orientation change, this is not implemented and not planned for future platforms either. [1] https://lore.kernel.org/all/20230601-topic-sm8550-upstream-type-c-v3-0-22c9973012b6@xxxxxxxxxx/ Signed-off-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx> --- Changes in v2: - Update bindings property description to describe how multi-port is handled - Link to v1: https://lore.kernel.org/r/20230804-topic-sm8550-upstream-type-c-orientation-v1-0-36dd3edec7bf@xxxxxxxxxx --- Neil Armstrong (4): dt-bindings: soc: qcom: qcom,pmic-glink: add a gpio used to determine the Type-C port plug orientation usb: ucsi: glink: use the connector orientation GPIO to provide switch events arm64: dts: qcom: sm8550-mtp: add orientation gpio arm64: dts: qcom: sm8550-qrd: add orientation gpio .../bindings/soc/qcom/qcom,pmic-glink.yaml | 19 ++++++++ arch/arm64/boot/dts/qcom/sm8550-mtp.dts | 1 + arch/arm64/boot/dts/qcom/sm8550-qrd.dts | 1 + drivers/usb/typec/ucsi/ucsi_glink.c | 54 +++++++++++++++++++++- 4 files changed, 74 insertions(+), 1 deletion(-) --- base-commit: df964ce9ef9fea10cf131bf6bad8658fde7956f6 change-id: 20230804-topic-sm8550-upstream-type-c-orientation-0bbbb360d3f7 Best regards, -- Neil Armstrong <neil.armstrong@xxxxxxxxxx>
