| From: |
| Abel Vesa <abel.vesa-AT-linaro.org> |
| To: |
| Andy Gross <agross-AT-kernel.org>, Bjorn Andersson <andersson-AT-kernel.org>, Konrad Dybcio <konrad.dybcio-AT-linaro.org>, Greg Kroah-Hartman <gregkh-AT-linuxfoundation.org>, Rob Herring <robh+dt-AT-kernel.org>, Krzysztof Kozlowski <krzysztof.kozlowski+dt-AT-linaro.org> |
| Subject: |
| [RFC PATCH 0/3] usb: Add generic repeater framework and SM8550 driver |
| Date: |
| Wed, 16 Nov 2022 14:30:16 +0200 |
| Message-ID: |
| <20221116123019.2753230-1-abel.vesa@linaro.org> |
| Cc: |
| Linux Kernel Mailing List <linux-kernel-AT-vger.kernel.org>, devicetree-AT-vger.kernel.org, linux-arm-msm-AT-vger.kernel.org, linux-scsi-AT-vger.kernel.org, linux-usb-AT-vger.kernel.org |
| Archive-link: |
| Article |
This patchset adds a generic USB repeater framework to be used by
platforms that have eUSB2 support and want to have USB 2.0 compliance.
In such cases there is a device between the eUSB2 PHY and the actual
connector. That device is basically a repeater and the most important
thing it does is to level shift in both directions. Such a device needs
to be controlled in software usually by the PHY or by the HC.
So add a generic framework with basic ops to allow consumer drivers
to get a phandle to it and to control it.
Also add the SM8550 PMIC eUSB2 repeater which uses the generic
framework.
Abel Vesa (3):
usb: Add USB repeater generic framework
dt-bindings: usb: Add qcom,snps-eusb2-repeater schema
usb: repeater: Add Qualcomm PMIC eUSB2 driver
.../usb/qcom,snps-eusb2-repeater.yaml | 43 +++
drivers/usb/Kconfig | 2 +
drivers/usb/Makefile | 2 +
drivers/usb/repeater/Kconfig | 20 ++
drivers/usb/repeater/Makefile | 7 +
.../usb/repeater/repeater-qcom-pmic-eusb2.c | 251 ++++++++++++++++++
drivers/usb/repeater/repeater.c | 198 ++++++++++++++
include/linux/usb/repeater.h | 78 ++++++
8 files changed, 601 insertions(+)
create mode 100644 Documentation/devicetree/bindings/usb/qcom,snps-eusb2-repeater.yaml
create mode 100644 drivers/usb/repeater/Kconfig
create mode 100644 drivers/usb/repeater/Makefile
create mode 100644 drivers/usb/repeater/repeater-qcom-pmic-eusb2.c
create mode 100644 drivers/usb/repeater/repeater.c
create mode 100644 include/linux/usb/repeater.h
--
2.34.1
