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Wed, 10 Aug 2022 13:31:16 +0000 From: Shenwei Wang To: robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, linus.walleij@linaro.org, brgl@bgdev.pl, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, linux-arm-kernel@lists.infradead.org, imx@lists.linux.dev, Shenwei Wang Subject: [PATCH v3 0/3] Add IMX8 SCU GPIO support Date: Wed, 10 Aug 2022 08:30:02 -0500 Message-Id: <20220810133005.74653-1-shenwei.wang@nxp.com> X-Mailer: git-send-email 2.25.1 X-ClientProxiedBy: SJ0PR03CA0355.namprd03.prod.outlook.com (2603:10b6:a03:39c::30) To AM9PR04MB8274.eurprd04.prod.outlook.com (2603:10a6:20b:3e8::23) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 483b6735-8893-4eeb-383a-08da7ad499dd X-MS-TrafficTypeDiagnostic: AM6PR04MB6630:EE_ X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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The SCU firmware provides a set of APIs to access the GPIO PINs on the SCU domain. This patch series implements the standard GPIO driver over the SCU firmware APIs, so that the GPIOs on the SCU domain could be accessed like a local GPIO PINs. Changes in V3: - follow the other imx8 SCU binding rule and rename the compatible string from fsl,imx8-scu-gpio to fsl,imx8qxp-sc-gpio - rename the doc file from fsl,imx8-scu-gpio.yaml to fsl,imx-sc-gpio.yaml Changes in V2: - move the driver into the gpio directory per Krzysztof's feedback - change the subnode description in file fsl,scu.yaml - fix the dt_binding_check error Shenwei Wang (3): dt-bindings: gpio: Add imx scu gpio driver bindings dt-bindings: firmware: imx: Add imx-scu gpio node firmware: imx: add imx-scu GPIO driver .../devicetree/bindings/firmware/fsl,scu.yaml | 5 + .../bindings/gpio/fsl,imx-sc-gpio.yaml | 40 +++++ drivers/gpio/Kconfig | 4 + drivers/gpio/Makefile | 1 + drivers/gpio/gpio-imx-scu.c | 140 ++++++++++++++++++ 5 files changed, 190 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/fsl,imx-sc-gpio.yaml create mode 100644 drivers/gpio/gpio-imx-scu.c --- 2.25.1