linux-kernel - [PATCH v2 0/5] ARM: Add GXP I2C Support

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Message-Id: <20230117204439.76841-1-nick.hawkins@hpe.com>
Date:   Tue, 17 Jan 2023 14:44:34 -0600
From:   nick.hawkins@....com
To:     verdun@....com, nick.hawkins@....com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, lee@...nel.org,
        linux@...linux.org.uk, linux-i2c@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v2 0/5] ARM: Add GXP I2C Support

From: Nick Hawkins <nick.hawkins@....com>

The GXP SoC supports 10 I2C engines. Each I2C engine is completely
independent and can function both as an I2C master and I2C slave. The
I2C master can operate in a multi master environment. The engines support
a scalable speed from 8kHZ to 1.5 Mhz.

---

Changes since v1:
 *Removed yaml documentation of hpe,gxp-sysreg as it has been
  applied to syscon.yaml
 *Made i2cX a generic node name i2c in dts file
 *Added status field to the dtsi and the dts for i2c bus
 *Removed unnecessary size-cells and address-cells from yaml
 *Removed phandle from hpe,sysreg-phandle
 *Changed hpe,i2c-max-bus-freq to clock-frequency
 *Removed rogue tab in structure definition
 *Removed use of __iomem *base local variables as it was
  unnecessary
 *Switched #if IS_ENABLED() -> if (IS_ENABLED()) inside
  functions
 *Removed use of pr_* functions
 *Removed informational prints in register and unregister
  functions
 *Removed print from interrupt handler
 *Removed informational prints from probe function
 *Switched dev_err -> dev_err_probe in probe function
 *Used the respective helper for mapping the resource to
  __iomem

Nick Hawkins (5):
  i2c: hpe: Add GXP SoC I2C Controller
  dt-bindings: i2c: Add hpe,gxp-i2c
  ARM: dts: hpe: Add I2C Topology
  ARM: multi_v7_defconfig: add gxp i2c module
  MAINTAINERS: Add HPE GXP I2C Support

 .../devicetree/bindings/i2c/hpe,gxp-i2c.yaml  |  54 ++
 MAINTAINERS                                   |   2 +
 arch/arm/boot/dts/hpe-bmc-dl360gen10.dts      | 109 ++++
 arch/arm/boot/dts/hpe-gxp.dtsi                | 125 ++++
 arch/arm/configs/multi_v7_defconfig           |   1 +
 drivers/i2c/busses/Kconfig                    |   7 +
 drivers/i2c/busses/Makefile                   |   1 +
 drivers/i2c/busses/i2c-gxp.c                  | 609 ++++++++++++++++++
 8 files changed, 908 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/i2c/hpe,gxp-i2c.yaml
 create mode 100644 drivers/i2c/busses/i2c-gxp.c

-- 
2.17.1