linux-kernel - [PATCH v5 0/6] arm64: qcom: add Type-C Altmode support

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Message-Id: <20230601-topic-sm8550-upstream-type-c-v5-0-9221cd300903@linaro.org>
Date:   Mon, 19 Jun 2023 10:07:12 +0200
From:   Neil Armstrong <neil.armstrong@...aro.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc:     linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org,
        Neil Armstrong <neil.armstrong@...aro.org>
Subject: [PATCH v5 0/6] arm64: qcom: add Type-C Altmode support

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.

The 0xff altmode is translated as a SAFE type-c mux mode.

The fact No more GLINK altmode events for USB needs to be resolved
in a separate patchset.

Redriver driver & bindings dependency at [1].

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

Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
---
Changes in v5:
- switch to single port instead of ports for fsa node in MTP & QRD
- Link to v4: https://lore.kernel.org/r/20230601-topic-sm8550-upstream-type-c-v4-0-eb2ae960b8dc@linaro.org

Changes in v4:
- Drop the orientation gpio handling code and bindings until the situatin is resolved
- Link to v3: https://lore.kernel.org/r/20230601-topic-sm8550-upstream-type-c-v3-0-22c9973012b6@linaro.org

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@linaro.org

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@linaro.org

---
Neil Armstrong (6):
      soc: qcom: pmic_glink_altmode: handle safe mode when disconnect
      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

 arch/arm64/boot/dts/qcom/sm8550-mtp.dts | 59 ++++++++++++++++++++-
 arch/arm64/boot/dts/qcom/sm8550-qrd.dts | 91 ++++++++++++++++++++++++++++++++-
 arch/arm64/boot/dts/qcom/sm8550.dtsi    | 26 ++++++++++
 drivers/soc/qcom/pmic_glink.c           |  6 +--
 drivers/soc/qcom/pmic_glink_altmode.c   | 61 +++++++++++++++++++++-
 5 files changed, 233 insertions(+), 10 deletions(-)
---
base-commit: e602e10c923db4435573997d383a145ee38ae333
change-id: 20230601-topic-sm8550-upstream-type-c-e85b4d971450

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