linux-kernel - [PATCH v3 0/3] arm: aspeed: Add UART routing support

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Date:   Thu, 9 Sep 2021 18:29:04 +0800
From:   Chia-Wei Wang <chiawei_wang@...eedtech.com>
To:     <joel@....id.au>, <andrew@...id.au>, <robh+dt@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-aspeed@...ts.ozlabs.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <openbmc@...ts.ozlabs.org>
CC:     <osk@...gle.com>, <yulei.sh@...edance.com>
Subject: [PATCH v3 0/3] arm: aspeed: Add UART routing support

Add UART routing driver and the device tree nodes.

v3:
 - Add individual bindings in YAML
 - Add support for AST24xx (AST25xx shares the same design)
 - Add more explanation for the sysfs ABI

v2:
 - Add dt-bindings
 - Add ABI documents for the exported sysfs interface
 - Revise driver implementation suggested by Joel

Chia-Wei Wang (3):
  dt-bindings: aspeed: Add UART routing controller
  soc: aspeed: Add UART routing support
  ARM: dts: aspeed: Add uart routing to device tree

 .../testing/sysfs-driver-aspeed-uart-routing  |  15 +
 .../bindings/soc/aspeed/uart-routing.yaml     |  70 ++
 arch/arm/boot/dts/aspeed-g4.dtsi              |   6 +
 arch/arm/boot/dts/aspeed-g5.dtsi              |   6 +
 arch/arm/boot/dts/aspeed-g6.dtsi              |   6 +
 drivers/soc/aspeed/Kconfig                    |  10 +
 drivers/soc/aspeed/Makefile                   |   9 +-
 drivers/soc/aspeed/aspeed-uart-routing.c      | 603 ++++++++++++++++++
 8 files changed, 721 insertions(+), 4 deletions(-)
 create mode 100644 Documentation/ABI/testing/sysfs-driver-aspeed-uart-routing
 create mode 100644 Documentation/devicetree/bindings/soc/aspeed/uart-routing.yaml
 create mode 100644 drivers/soc/aspeed/aspeed-uart-routing.c

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2.17.1