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

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


             reply	other threads:[~2022-11-16 12:31 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-16 12:30 Abel Vesa [this message]
2022-11-16 12:30 ` [RFC PATCH 1/3] usb: Add USB repeater generic framework Abel Vesa
2022-11-17  3:54   ` kernel test robot
2022-11-18  8:59   ` Andrzej Pietrasiewicz
2022-11-21 14:21     ` Abel Vesa
2022-11-16 12:30 ` [RFC PATCH 2/3] dt-bindings: usb: Add qcom,snps-eusb2-repeater schema Abel Vesa
2022-11-16 15:29   ` Rob Herring
2022-11-16 12:30 ` [RFC PATCH 3/3] usb: repeater: Add Qualcomm PMIC eUSB2 driver Abel Vesa
2022-11-22 14:51 [RFC PATCH 1/3] usb: Add USB repeater generic framework kernel test robot
2022-11-22 14:55 ` Dan Carpenter

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