From nobody Mon May 11 05:36:04 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 BD49FC433EF for ; Wed, 13 Apr 2022 12:56:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235671AbiDMM7E (ORCPT ); Wed, 13 Apr 2022 08:59:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59308 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230038AbiDMM7D (ORCPT ); Wed, 13 Apr 2022 08:59:03 -0400 Received: from mail-ej1-x632.google.com (mail-ej1-x632.google.com [IPv6:2a00:1450:4864:20::632]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D2FBC50E33 for ; Wed, 13 Apr 2022 05:56:41 -0700 (PDT) Received: by mail-ej1-x632.google.com with SMTP id i27so3733871ejd.9 for ; Wed, 13 Apr 2022 05:56:41 -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=ahTXWU/PO1db6NpymuEarcVlH8cpP7KwJst30CgSTjE=; b=lz1nR2vbTodMdiEGS+96/0Amdf5k+4IW4UipuGNmmQfNJ5u3I0zPbBHs/qdsKGq1W3 T0mHWSooZWSfPUEOpLVNY8yQN6cQWbhBccY/oc5rf4h4vx8ftY3PXV8KB4dCgoci9AJu PnGDbqNJpYoYqMak/4c08iTcRmmRY4xIYlmJk= 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=ahTXWU/PO1db6NpymuEarcVlH8cpP7KwJst30CgSTjE=; b=Ayuf47dNIzF5bsZcm0yQkVWlue5ql94/kdjTFzUpjgXGiLlHmkeAZKysZngYZsybsL I5wIR91f8FLMbVftGrjb9aCv9F+GRzhNe+j0rYUSJH08X7aKdP0K+0W+2NvGmkvgDIkd 0tFSL1+x19UjygJQmgq0fOrPwP/757w41zH/xbUs8NVYJZ5ZgDZ4KyomNQqnhwkZO5ne xkYRXTTOFpD680rAElRUuIwpWVG+Z922r7QzIHsiCcYL1NHd70eEJvvAvq8I86j5In3i 6P278S/S3BNBFJvsmhBX9R/vpxMu5fIuP5WoWoPal8VhzYXZ5v3w4WZs37sF+qXsYqzR DzNg== X-Gm-Message-State: AOAM5321M2fJx8wqiAV7M2f81vYP5nas2uP7VHwL56xIumXe3T0DV8Cf 0ZGwVP0U9Oq+nfdzSPAPiPibRQ== X-Google-Smtp-Source: ABdhPJw2mU0s1CVx/DWijTgytaKl9ZPqK2UNfp6KnR/HuEl7VMgYwmGqFL9mheLYSqTLxJ6NgdatWQ== X-Received: by 2002:a17:907:72c3:b0:6e8:b602:9793 with SMTP id du3-20020a17090772c300b006e8b6029793mr6276288ejc.704.1649854600433; Wed, 13 Apr 2022 05:56:40 -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 f12-20020a1709067f8c00b006e88b1556f4sm3941781ejr.212.2022.04.13.05.56.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 Apr 2022 05:56:39 -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 , Li Jun , Tim Harvey , Richard Zhu , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v2] arm64: dts: imx8mm-evk: add pwm1/backlight support Date: Wed, 13 Apr 2022 14:56:35 +0200 Message-Id: <20220413125636.28650-1-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 --- Changes since v1: - Fix commit body - Enable pwm, backlight 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..4c18f8fcd377 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 "okay"; + 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 "okay"; +}; + &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