From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 68C73C433E6 for ; Sat, 16 Jan 2021 19:56:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3939723403 for ; Sat, 16 Jan 2021 19:56:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726201AbhAPTz5 (ORCPT ); Sat, 16 Jan 2021 14:55:57 -0500 Received: from mout.gmx.net ([212.227.17.22]:48053 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726629AbhAPTzv (ORCPT ); Sat, 16 Jan 2021 14:55:51 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1610826817; bh=qu0Nv0k8UIi/GWgWvwmLRmyI5GZIM8QL8R88849zarE=; h=X-UI-Sender-Class:From:To:Cc:Subject:Date:In-Reply-To:References; b=ThDlMn7Fvh0T7vBvzN8FZjsl813SEjDttS+1hY5L+UOkkbX4SOwR/KV+kePGbSbP8 x1H0uks0FqE3malf9x9x8EJjDMUNZeGOXksL+x9lOxTNJkmMxNYNB4gyfYkQbVAVCa /X156mVsg1GreZZFuZldKLmdAscMKeP+DrqxxQHU= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from longitude ([37.201.215.209]) by mail.gmx.com (mrgmx105 [212.227.17.168]) with ESMTPSA (Nemesis) id 1MStCY-1lTz5S2vq2-00UJe0; Sat, 16 Jan 2021 20:53:36 +0100 From: =?UTF-8?q?Jonathan=20Neusch=C3=A4fer?= To: linux-kernel@vger.kernel.org Cc: Lee Jones , Rob Herring , =?UTF-8?q?Jonathan=20Neusch=C3=A4fer?= , Thierry Reding , =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= , Alessandro Zummo , Alexandre Belloni , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , Sam Ravnborg , Linus Walleij , Heiko Stuebner , Stephan Gerhold , Lubomir Rintel , Mark Brown , allen , Mauro Carvalho Chehab , "David S. Miller" , devicetree@vger.kernel.org, linux-pwm@vger.kernel.org, linux-rtc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Heiko Stuebner , Josua Mayer , Andreas Kemnade , Arnd Bergmann , Daniel Palmer , Andy Shevchenko , Rob Herring Subject: [PATCH v8 2/7] dt-bindings: mfd: Add binding for Netronix embedded controller Date: Sat, 16 Jan 2021 20:48:21 +0100 Message-Id: <20210116194826.3866540-3-j.neuschaefer@gmx.net> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210116194826.3866540-1-j.neuschaefer@gmx.net> References: <20210116194826.3866540-1-j.neuschaefer@gmx.net> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:9HvTZzmITnHdkKjxY+6LjIGBOUZXAFxxNbfTkOacLyWIUqGwcNi nejIXml6JblxkoT4lz8IWr5m1+oJ5Av92Ql7/iolimuoFJyabY2Tlb8H/2s+bffl7Ei1C3O 11M6UIJVcHHAcCxftzndk3B58K9EwDoDEZ0vVEv9Pkf72BVDyMSkVkLd1aBfjCfCVNAhYYf VX4tVoNPRlGvTOmMJCIgw== X-UI-Out-Filterresults: notjunk:1;V03:K0:Px+wNsIa9X4=:l8pn6zOGTZVJjKIVRLLbmv +VTXyMkRvWa9GDdN+NVgu8nGOOdbddwUoRO5wS8vBzHM8MY8CqQ7nyEaTXkyb2iTYAJrYmEpx CRQJyZJT9IFwGpWhs8SO+kxFeEIi4TVztKoUA7gErUIww2GXjfcd05B4soHLvZKXaN0Ylsdu8 t6+/hv1Ddy4cdbaJIje9eudkBpDR53Un9uIAtWjLQl29QLyM+lG7Utixlf56297hRRhZtHhHS XWwVwWHXldt05cb4Sf1JfJokBnpqY79BtohuJFQGbw+HrWo0b9sjf+Xx/pKZfAPdOCYGDvmsp 11anxWJaLsdRBs2plxPJBa/NzGOjWt86B2O8KPl/0qbXXENQM19DwQXZEzd+jrynUzoTsnQLm HcdZBMclrb4PtdusCspm82BO7XfDZvRH9lRqbBGPCDn/3OrZgbEGNGrIeeejpkPHKQAbfvhVV g3LfK+3QrkWlrR+f+hidbah/xTS5yd1vz89Q50OYj9RS8HvbmEVM/WhfCC4SIGX5r+QjO4uf0 ytKiw3kmCMgSH+CiBIYEIv23+rH1UR/zRyOQt7BjPUaf3Y/bstZEsckrdpJDVWDnqVYho/tdc Kbf+epsj6kxeNH8YKDBfa/4CHCh3v3+fobW++MS1hLojiNzNQ8pPr029hhwyr8vz2a0FtVwwV 8GMgMPRNrQsTK+enZ7B2PvE+GlNh9D+azApkonmv1dq9joHTDlp9SPe8yDavxbwF/mzrCZh7W czOk0b6qDVZCOA9DtPWzdOcC7ZbpzPcII9LsCKiDNqOBHXwt3MBFrVt4mAk9QGWFd8H10s3a1 N0ldURu/rzD7AbQ6Aih7RdcxjzrFzdXY+yHkg4bZ/VRud845rIDcYWzG2oQdrK6wkhaF6E2cZ Sm0J6Aj53wVjSrzshYRA== Precedence: bulk List-ID: X-Mailing-List: linux-pwm@vger.kernel.org This EC is found in e-book readers of multiple brands (e.g. Kobo, Tolino), and is typically implemented as a TI MSP430 microcontroller. It controls different functions of the system, such as power on/off, RTC, PWM for the backlight. The exact functionality provided can vary between boards. Signed-off-by: Jonathan Neusch=C3=A4fer Reviewed-by: Rob Herring =2D-- v5-v8: - no changes v4: - Add R-b tag v3: - https://lore.kernel.org/lkml/20200924192455.2484005-3-j.neuschaefer@gmx.= net/ - Remove binding in text form patch description again - Add additionalProperties: false - Remove interrupt-controller property from example - Merge pwm/rtc nodes into main node v2: - https://lore.kernel.org/lkml/20200905133230.1014581-3-j.neuschaefer@gmx.= net/ - Add the plaintext DT binding for comparison =2D-- .../bindings/mfd/netronix,ntxec.yaml | 76 +++++++++++++++++++ 1 file changed, 76 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/netronix,ntxec.y= aml diff --git a/Documentation/devicetree/bindings/mfd/netronix,ntxec.yaml b/D= ocumentation/devicetree/bindings/mfd/netronix,ntxec.yaml new file mode 100644 index 0000000000000..59a630025f52f =2D-- /dev/null +++ b/Documentation/devicetree/bindings/mfd/netronix,ntxec.yaml @@ -0,0 +1,76 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mfd/netronix,ntxec.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Netronix Embedded Controller + +maintainers: + - Jonathan Neusch=C3=A4fer + +description: | + This EC is found in e-book readers of multiple brands (e.g. Kobo, Tolin= o), and + is typically implemented as a TI MSP430 microcontroller. + +properties: + compatible: + const: netronix,ntxec + + reg: + items: + - description: The I2C address of the EC + + system-power-controller: + type: boolean + description: See Documentation/devicetree/bindings/power/power-contro= ller.txt + + interrupts: + minItems: 1 + description: + The EC can signal interrupts via a GPIO line + + "#pwm-cells": + const: 2 + description: | + Number of cells in a PWM specifier. + + The following PWM channels are supported: + - 0: The PWM channel controlled by registers 0xa1-0xa7 + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + #include + i2c { + #address-cells =3D <1>; + #size-cells =3D <0>; + + ec: embedded-controller@43 { + pinctrl-names =3D "default"; + pinctrl-0 =3D <&pinctrl_ntxec>; + + compatible =3D "netronix,ntxec"; + reg =3D <0x43>; + system-power-controller; + interrupt-parent =3D <&gpio4>; + interrupts =3D <11 IRQ_TYPE_EDGE_FALLING>; + #pwm-cells =3D <2>; + }; + }; + + backlight { + compatible =3D "pwm-backlight"; + pwms =3D <&ec 0 50000>; + power-supply =3D <&backlight_regulator>; + }; + + backlight_regulator: regulator-dummy { + compatible =3D "regulator-fixed"; + regulator-name =3D "backlight"; + }; =2D- 2.29.2