linux-kernel - [PATCH v2 0/2] Add pinctrl support for S32 SoC family

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Message-Id: <20221128054820.1771-1-clin@suse.com>
Date:   Mon, 28 Nov 2022 13:48:18 +0800
From:   Chester Lin <clin@...e.com>
To:     Linus Walleij <linus.walleij@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Dong Aisheng <aisheng.dong@....com>,
        Fabio Estevam <festevam@...il.com>,
        Shawn Guo <shawnguo@...nel.org>, Jacky Bai <ping.bai@....com>
Cc:     Chester Lin <clin@...e.com>, s32@....com,
        linux-gpio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Larisa Grigore <larisa.grigore@....com>,
        Ghennadi Procopciuc <Ghennadi.Procopciuc@....com>,
        Andrei Stefanescu <andrei.stefanescu@....com>,
        Radu Pirea <radu-nicolae.pirea@....com>,
        Andreas Färber <afaerber@...e.de>,
        Matthias Brugger <mbrugger@...e.com>
Subject: [PATCH v2 0/2] Add pinctrl support for S32 SoC family

Hello,

Here I want to introduce a new patch series, which aims to support IOMUX
functions provided by SIUL2 [System Integration Unit Lite2] on S32 SoCs,
such as S32G2. This series is originally from NXP's implementation on
CodeAurora[1] and it will be required by upstream kernel for supporting
a variety of devices on S32 SoCs which need to config PINMUXs, such as
PHYs and MAC controllers.

Currently, the whole architecture relies on FDTs offered by ATF[3] on
CodeAurora to keep the flexibility of handling multiple S32 platforms since
now S32 clks can be triggered via the ARM SCMI clock protocol and clk IDs/
settings can vary according to different board designs. To ensure that the
driver can work properly, the dt-binding schemas in this patchset are still
required as references.

Thanks,
Chester

Changes in v2:
- Move the "nxp,pins" ID range information from DT to the driver.
- dt-bindings:
  - Fix schema issues.
  - Add descriptions for reg entries.
  - Revise the example.
- Refine the compatible name from "nxp,s32g-..." to "nxp,s32g2-...".
- Fix the copyright format suggested by NXP.

[1] https://source.codeaurora.org/external/autobsps32/linux/tree/drivers/pinctrl/freescale?h=bsp34.0-5.10.120-rt
[2] https://source.codeaurora.org/external/autobsps32/arm-trusted-firmware/tag/?h=bsp34.0-2.5

Chester Lin (2):
  dt-bindings: pinctrl: add schema for NXP S32 SoCs
  pinctrl: add NXP S32 SoC family support

 .../pinctrl/nxp,s32cc-siul2-pinctrl.yaml      |  125 ++
 drivers/pinctrl/freescale/Kconfig             |   16 +
 drivers/pinctrl/freescale/Makefile            |    2 +
 drivers/pinctrl/freescale/pinctrl-s32.h       |   77 ++
 drivers/pinctrl/freescale/pinctrl-s32cc.c     | 1003 +++++++++++++++++
 drivers/pinctrl/freescale/pinctrl-s32g.c      |  773 +++++++++++++
 6 files changed, 1996 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pinctrl/nxp,s32cc-siul2-pinctrl.yaml
 create mode 100644 drivers/pinctrl/freescale/pinctrl-s32.h
 create mode 100644 drivers/pinctrl/freescale/pinctrl-s32cc.c
 create mode 100644 drivers/pinctrl/freescale/pinctrl-s32g.c

-- 
2.37.3