From nobody Mon May 11 05:36:18 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3C2FDC433EF for ; Wed, 13 Apr 2022 10:21:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234885AbiDMKXW (ORCPT ); Wed, 13 Apr 2022 06:23:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48224 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231245AbiDMKXU (ORCPT ); Wed, 13 Apr 2022 06:23:20 -0400 Received: from mail-ej1-x635.google.com (mail-ej1-x635.google.com [IPv6:2a00:1450:4864:20::635]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5086027CE5 for ; Wed, 13 Apr 2022 03:20:59 -0700 (PDT) Received: by mail-ej1-x635.google.com with SMTP id bv19so2954819ejb.6 for ; Wed, 13 Apr 2022 03:20:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=zGO6fu5bsJKLhceCU/2eZbT6NC6ZKZlGiRFZPq4QBd8=; b=lUJPLTmrBG8EGdlglUt6FsdnyuMBIQH6L1xSpGJEabdt7ofMyOQaqeNHc/HErZUbbM CPvEkBqPWMxwgShffc4c0zIxaAczkglBwkcpQKrCIfrXO7sLlyXosLYMpPAN2x5kA5Uj WUoD6HblWk8E3RnB2o8u2Z23Jc7ubq3kR+pTk= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=zGO6fu5bsJKLhceCU/2eZbT6NC6ZKZlGiRFZPq4QBd8=; b=whNylKHfmPMLHy5ThZuBpGzSJN66RFaBOJUscB78V0V0f42LRDwlMy3IpJ6e3CoY7H 2SUIefIIp23jr5AmAlDlDYE0gWtyXzfvJ7dlwtWWYu41/IWW8MT2u1l5wc8qUc9OVPWC VRVsOon7zHDlEEAY1nM9wYL8Fo7N1kec5ozPnu+qv8eassoF3HesOGI/a8DcQ29SqpKN 3Gh8m2FU6wtJp004ANNJnRTu9puadD8FFZi2spJaZB3SS7vfhFmJEt7U6WeBfhK05BlM D54OE54KfpBUmyV10rWyDsjcstdgj4jyvWcyiNuk+CtL1lD/OigMgp4891Bj6Ez7rXtt +dCw== X-Gm-Message-State: AOAM532mYppDXIzFL5dPnnpUrRdmROI5RUViU6EaMv4IzMxhzVeX43nG mLnabq/bZ1diL4fgBxBUOCH49g== X-Google-Smtp-Source: ABdhPJyd46hjgiXiKc0E6A+TkwfuNjRpTspMmE/b+xlPHX9Jpc6mEp15RgVxpqgijjXtUcN2SGghkQ== X-Received: by 2002:a17:906:6a0d:b0:6e8:c927:663 with SMTP id qw13-20020a1709066a0d00b006e8c9270663mr1940427ejc.394.1649845257887; Wed, 13 Apr 2022 03:20:57 -0700 (PDT) Received: from tom-ThinkPad-T14s-Gen-2i.homenet.telecomitalia.it (host-95-245-147-71.retail.telecomitalia.it. [95.245.147.71]) by smtp.gmail.com with ESMTPSA id m3-20020a17090679c300b006cf9ce53354sm14021163ejo.190.2022.04.13.03.20.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 Apr 2022 03:20:57 -0700 (PDT) From: Tommaso Merciai Cc: tommaso.merciai@amarulasolutions.com, linux-amarula@amarulasolutions.com, Rob Herring , Krzysztof Kozlowski , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , Joakim Zhang , Tim Harvey , Richard Zhu , Li Jun , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH] arm64: dts: imx8mm-evk: add pwm1/backlight support Date: Wed, 13 Apr 2022 12:20:51 +0200 Message-Id: <20220413102052.20207-1-tommaso.merciai@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable To: unlisted-recipients:; (no To-header on input) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Add pwm1/backlight support nodes for imx8mm_evk board. Align with u-boot dts References: - https://patchwork.ozlabs.org/project/uboot/patch/20220326111911.13720-9-= tommaso.merciai@amarulasolutions.com/ Signed-off-by: Tommaso Merciai --- arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi | 21 +++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi b/arch/arm64/boo= t/dts/freescale/imx8mm-evk.dtsi index 6d67df7692f1..55566708f667 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi @@ -59,6 +59,15 @@ reg_usdhc2_vmmc: regulator-usdhc2 { enable-active-high; }; =20 + backlight: backlight { + status =3D "disabled"; + compatible =3D "pwm-backlight"; + pwms =3D <&pwm1 0 5000000>; + brightness-levels =3D <0 255>; + num-interpolated-steps =3D <255>; + default-brightness-level =3D <250>; + }; + ir-receiver { compatible =3D "gpio-ir-receiver"; gpios =3D <&gpio1 13 GPIO_ACTIVE_LOW>; @@ -395,6 +404,12 @@ &wdog1 { status =3D "okay"; }; =20 +&pwm1 { + pinctrl-names =3D "default"; + pinctrl-0 =3D <&pinctrl_backlight>; + status =3D "disabled"; +}; + &iomuxc { pinctrl_fec1: fec1grp { fsl,pins =3D < @@ -549,4 +564,10 @@ pinctrl_wdog: wdoggrp { MX8MM_IOMUXC_GPIO1_IO02_WDOG1_WDOG_B 0x166 >; }; + + pinctrl_backlight: backlightgrp { + fsl,pins =3D < + MX8MM_IOMUXC_GPIO1_IO01_PWM1_OUT 0x06 + >; + }; }; --=20 2.25.1