[PATCH v3 0/8] arm64: qcom: add Type-C Altmode support

From: Neil Armstrong
Date: Tue Jun 13 2023 - 03:56:46 EST


This adds the missing bits to support the USB-C Altmode
support on SM8550.

These are the following changes since the previous SM8450 SoC:
- No more GLINK altmode events for USB only changes, only DP
- Type-C orientation is available on a PMIC signal connected
to a GPIO line
- When altmode is disconnected, an 0xff mode event is sent.

In order to handle those changes, a new orientation-gpios property
is added to the usb-c connector bindings.
The 0xff altomode is translated as a SAFE type-c mux mode.

And in order to handle such info, we tie this to the UCSI connector
events to propagate the orientation to Type-C switches.

Redriver driver & bindings dependency at [1].

[1] https://lore.kernel.org/all/20230601-topic-sm8x50-upstream-redriver-v2-0-dda89b22b1c0@xxxxxxxxxx/

Signed-off-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
---
Changes in v3:
- Fix fsa node names in both QRD amd MTP nodes
- Add missing orientation-gpios in MTP dt
- Remove invalid svid property
- Link to v2: https://lore.kernel.org/r/20230601-topic-sm8550-upstream-type-c-v2-0-3bbdf37575c3@xxxxxxxxxx

Changes in v2:
- Updated redriver node to use retimer-switch on QRD
- Fixed redriver data-lane according to v2 bindings
- Added review/ack tags
- Added new change to handle retimer-switch in pmic-glink altmode driver
- Link to v1: https://lore.kernel.org/r/20230601-topic-sm8550-upstream-type-c-v1-0-d4d97b4d8bab@xxxxxxxxxx

---
Neil Armstrong (8):
dt-bindings: connector: usb-connector: add a gpio used to determine the Type-C port plug orientation
soc: qcom: pmic_glink_altmode: handle safe mode when disconnect
usb: ucsi: glink: use the connector orientation GPIO to provide switch events
qcom: pmic_glink_altmode: add retimer-switch support
qcom: pmic_glink: enable altmode for SM8550
arm64: dts: qcom: sm8550: add ports subnodes in usb/dp qmpphy node
arm64: dts: qcom: sm8550-mtp: add pmic glink port/endpoints
arm64: dts: qcom: sm8550-qrd: add pmic glink port/endpoints

.../bindings/connector/usb-connector.yaml | 5 ++
arch/arm64/boot/dts/qcom/sm8550-mtp.dts | 67 ++++++++++++++-
arch/arm64/boot/dts/qcom/sm8550-qrd.dts | 99 +++++++++++++++++++++-
arch/arm64/boot/dts/qcom/sm8550.dtsi | 26 ++++++
drivers/soc/qcom/pmic_glink.c | 6 +-
drivers/soc/qcom/pmic_glink_altmode.c | 61 ++++++++++++-
drivers/usb/typec/ucsi/ucsi_glink.c | 52 +++++++++++-
7 files changed, 305 insertions(+), 11 deletions(-)
---
base-commit: e8bab25f2afdf2f74359f6c743b21fafc9cdb03e
change-id: 20230601-topic-sm8550-upstream-type-c-e85b4d971450

Best regards,
--
Neil Armstrong <neil.armstrong@xxxxxxxxxx>