[PATCH v2 0/5] USB4 mode programming for QMMPHY on X1E
Konrad Dybcio
konradybcio at kernel.org
Tue Jul 28 03:10:11 PDT 2026
The USB43DP QMP PHY, as the name suggests, supports USB4 in addition to
DP/USB. This series provides the necessary plumbing to switch to that
mode of operation on hamoa/purwa.
This is achieved by exposing a third `struct phy *` for the USB4 sub-
PHY, which will be toggled by the USB4 router driver, living within the
Thunderbolt framework, which will be posted separately.
Find more details in the individual commit messages. Tested on a
X1E80100 CRD.
No external dependencies.
Signed-off-by: Konrad Dybcio <konrad.dybcio at oss.qualcomm.com>
---
Changes in v2:
- Massage the bindings to only allow the p2rr2p clock on Hamoa
- Pick up tags
- Rebase (nop)
- Link to v1: https://patch.msgid.link/20260518-topic-usb4phy-v1-0-71d827c49dca@oss.qualcomm.com
To: Vinod Koul <vkoul at kernel.org>
To: Neil Armstrong <neil.armstrong at linaro.org>
To: Rob Herring <robh at kernel.org>
To: Krzysztof Kozlowski <krzk+dt at kernel.org>
To: Conor Dooley <conor+dt at kernel.org>
To: Bjorn Andersson <andersson at kernel.org>
To: Konrad Dybcio <konradybcio at kernel.org>
Cc: linux-arm-msm at vger.kernel.org
Cc: linux-phy at lists.infradead.org
Cc: devicetree at vger.kernel.org
Cc: linux-kernel at vger.kernel.org
---
Konrad Dybcio (5):
dt-bindings: phy: qcom,qmp-usb3-dp: Extend X1E description for USB4
phy: core: Define TBT phy_mode
phy: qualcomm: qmp-combo: Add preliminary USB4 support
phy: qualcomm: qmp-combo: Add USB4/TBT3 configuration data for Hamoa
arm64: dts: qcom: hamoa: Extend QMPPHY description for USB4
.../phy/qcom,sc8280xp-qmp-usb43dp-phy.yaml | 55 +-
arch/arm64/boot/dts/qcom/hamoa.dtsi | 18 +-
drivers/phy/qualcomm/phy-qcom-qmp-combo.c | 592 ++++++++++++++++++---
drivers/phy/qualcomm/phy-qcom-qmp-pcs-aon-v6.h | 2 +
drivers/phy/qualcomm/phy-qcom-qmp-pcs-usb-v6.h | 15 +
.../phy/qualcomm/phy-qcom-qmp-qserdes-txrx-v6_n4.h | 45 ++
include/dt-bindings/phy/phy-qcom-qmp.h | 1 +
include/linux/phy/phy-tbt.h | 14 +
include/linux/phy/phy.h | 2 +
9 files changed, 651 insertions(+), 93 deletions(-)
---
base-commit: 0d33d21e47d9dc66f91e44da3fc9220c74d93df7
change-id: 20260518-topic-usb4phy-e9612f5ba008
Best regards,
--
Konrad Dybcio <konrad.dybcio at oss.qualcomm.com>
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