linux-kernel - [PATCH RFC 0/2] usb: typec: Add new driver for Parade PS8830 Type-C Retimer

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Message-Id: <20240829-x1e80100-ps8830-v1-0-bcc4790b1d45@linaro.org>
Date: Thu, 29 Aug 2024 21:44:24 +0300
From: Abel Vesa <abel.vesa@...aro.org>
To: Heikki Krogerus <heikki.krogerus@...ux.intel.com>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>, 
 Rajendra Nayak <quic_rjendra@...cinc.com>, 
 Sibi Sankar <quic_sibis@...cinc.com>, Johan Hovold <johan@...nel.org>, 
 Dmitry Baryshkov <dmitry.baryshkov@...aro.org>, 
 Trilok Soni <quic_tsoni@...cinc.com>, linux-kernel@...r.kernel.org, 
 linux-usb@...r.kernel.org, devicetree@...r.kernel.org, 
 Abel Vesa <abel.vesa@...aro.org>
Subject: [PATCH RFC 0/2] usb: typec: Add new driver for Parade PS8830
 Type-C Retimer

The Parade PS8830 is a Type-C multi-protocol retimer that is controlled
via I2C. It provides altmode and orientation handling and usually sits
between the Type-C port and the PHY.

It is currently used alongside Qualcomm Snapdragon X Elite SoCs on quite
a few laptops already.

This new driver adds support for the following 3 modes:
 - DP 4lanes - with pin assignments C and E
 - USB3
 - DP 2lanes + USB3

Only DP 4lanes and USB3 modes have been succesfully tested on
Qualcomm (X Elite) CRD and Lenovo Thinkpad T14s so fat.
Devicetree patches for these 2 boards will follow.

The DP 2lanes + USB3 is still work-in-progress as it might involve changes
outside of this retimer driver.

Signed-off-by: Abel Vesa <abel.vesa@...aro.org>
---
Abel Vesa (2):
      dt-bindings: usb: Add Parade PS8830 Type-C retimer bindings
      usb: typec: Add support for Parade PS8830 Type-C Retimer

 .../devicetree/bindings/usb/parade,ps8830.yaml     | 117 +++++++
 drivers/usb/typec/mux/Kconfig                      |  10 +
 drivers/usb/typec/mux/Makefile                     |   1 +
 drivers/usb/typec/mux/ps8830.c                     | 347 +++++++++++++++++++++
 4 files changed, 475 insertions(+)
---
base-commit: b18bbfc14a38b5234e09c2adcf713e38063a7e6e
change-id: 20240521-x1e80100-ps8830-d5ccca95b557

Best regards,
-- 
Abel Vesa <abel.vesa@...aro.org>