From patchwork Mon Jan 25 18:21:53 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AngeloGioacchino Del Regno X-Patchwork-Id: 1431322 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-gpio-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4DPdY32Ry5z9sSs for ; Tue, 26 Jan 2021 05:23:51 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726124AbhAYSXS (ORCPT ); Mon, 25 Jan 2021 13:23:18 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39210 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726725AbhAYSXN (ORCPT ); Mon, 25 Jan 2021 13:23:13 -0500 Received: from relay08.th.seeweb.it (relay08.th.seeweb.it [IPv6:2001:4b7a:2000:18::169]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3327AC0613ED; Mon, 25 Jan 2021 10:21:59 -0800 (PST) Received: from IcarusMOD.eternityproject.eu (unknown [2.237.20.237]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by m-r2.th.seeweb.it (Postfix) with ESMTPSA id 784623E84E; Mon, 25 Jan 2021 19:21:55 +0100 (CET) From: AngeloGioacchino Del Regno To: linus.walleij@linaro.org Cc: linux-kernel@vger.kernel.org, konrad.dybcio@somainline.org, marijn.suijten@somainline.org, martin.botka@somainline.org, phone-devel@vger.kernel.org, linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, robh+dt@kernel.org, AngeloGioacchino Del Regno Subject: [PATCH 2/2] dt-bindings: pinctrl: Add bindings for Awinic AW9523/AW9523B Date: Mon, 25 Jan 2021 19:21:53 +0100 Message-Id: <20210125182153.212998-2-angelogioacchino.delregno@somainline.org> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210125182153.212998-1-angelogioacchino.delregno@somainline.org> References: <20210125182153.212998-1-angelogioacchino.delregno@somainline.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org Add bindings for the Awinic AW9523/AW9523B I2C GPIO Expander driver. Signed-off-by: AngeloGioacchino Del Regno --- .../pinctrl/awinic,aw9523-pinctrl.yaml | 139 ++++++++++++++++++ 1 file changed, 139 insertions(+) create mode 100644 Documentation/devicetree/bindings/pinctrl/awinic,aw9523-pinctrl.yaml diff --git a/Documentation/devicetree/bindings/pinctrl/awinic,aw9523-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/awinic,aw9523-pinctrl.yaml new file mode 100644 index 000000000000..640d4d7e4cab --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/awinic,aw9523-pinctrl.yaml @@ -0,0 +1,139 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pinctrl/awinic,aw9523-pinctrl.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Awinic AW9523/AW9523B I2C GPIO Expander + +maintainers: + - AngeloGioacchino Del Regno + +description: | + The Awinic AW9523/AW9523B I2C GPIO Expander featuring 16 multi-function + I/O, 256 steps PWM mode and interrupt support. + +properties: + compatible: + const: awinic,aw9523-pinctrl + + reg: + maxItems: 1 + + '#gpio-cells': + description: | + Specifying the pin number and flags, as defined in + include/dt-bindings/gpio/gpio.h + const: 2 + + gpio-controller: true + + gpio-ranges: + maxItems: 1 + + interrupt-controller: true + + interrupts: + maxItems: 1 + description: Specifies the INTN pin IRQ. + + '#interrupt-cells': + description: + Specifies the PIN numbers and Flags, as defined in defined in + include/dt-bindings/interrupt-controller/irq.h + const: 2 + + reset-gpios: + maxItems: 1 + +#PIN CONFIGURATION NODES +patternProperties: + '-pins$': + type: object + description: + Pinctrl node's client devices use subnodes for desired pin configuration. + Client device subnodes use below standard properties. + $ref: "/schemas/pinctrl/pincfg-node.yaml" + + properties: + pins: + description: + List of gpio pins affected by the properties specified in + this subnode. + items: + pattern: "^gpio([0-9]|1[0-5])$" + minItems: 1 + maxItems: 16 + + function: + description: + Specify the alternative function to be configured for the + specified pins. + + enum: [ gpio, pwm ] + + bias-disable: true + bias-pull-down: true + bias-pull-up: true + drive-open-drain: true + drive-push-pull: true + input-enable: true + input-disable: true + output-high: true + output-low: true + + required: + - pins + - function + + additionalProperties: false + +required: + - compatible + - reg + - gpio-controller + - '#gpio-cells' + - gpio-ranges + +additionalProperties: false + +examples: + # Example configuration to drive pins for a keyboard matrix + - | + #include + #include + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + aw9523: gpio-expander@58 { + compatible = "awinic,aw9523-pinctrl"; + reg = <0x58>; + interrupt-parent = <&tlmm>; + interrupts = <50 IRQ_TYPE_EDGE_FALLING>; + gpio-controller; + #gpio-cells = <2>; + gpio-ranges = <&tlmm 0 0 16>; + interrupt-controller; + #interrupt-cells = <2>; + reset-gpios = <&tlmm 51 GPIO_ACTIVE_HIGH>; + + keyboard-matrix-col-pins { + pins = "gpio8", "gpio9", "gpio10", "gpio11", + "gpio12", "gpio13", "gpio14", "gpio15"; + function = "gpio"; + input-disable; + output-low; + }; + + keyboard-matrix-row-pins { + pins = "gpio0", "gpio1", "gpio2", "gpio3", + "gpio4", "gpio5", "gpio6", "gpio7"; + function = "gpio"; + bias-pull-up; + drive-open-drain; + input-enable; + }; + }; + };