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Message-Id: <20221116123019.2753230-1-abel.vesa@linaro.org>
Date: Wed, 16 Nov 2022 14:30:16 +0200
From: Abel Vesa <abel.vesa@...aro.org>
To: Andy Gross <agross@...nel.org>,
Bjorn Andersson <andersson@...nel.org>,
Konrad Dybcio <konrad.dybcio@...aro.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
linux-scsi@...r.kernel.org, linux-usb@...r.kernel.org
Subject: [RFC PATCH 0/3] usb: Add generic repeater framework and SM8550 driver
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
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