From patchwork Fri Dec 24 21:39:19 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: peter.vasil@gmail.com X-Patchwork-Id: 528777 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 EB818C433F5 for ; Fri, 24 Dec 2021 21:52:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233539AbhLXVw0 (ORCPT ); Fri, 24 Dec 2021 16:52:26 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34468 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231639AbhLXVwZ (ORCPT ); Fri, 24 Dec 2021 16:52:25 -0500 Received: from mail-ed1-x536.google.com (mail-ed1-x536.google.com [IPv6:2a00:1450:4864:20::536]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9129EC061401 for ; Fri, 24 Dec 2021 13:52:25 -0800 (PST) Received: by mail-ed1-x536.google.com with SMTP id z29so37278889edl.7 for ; Fri, 24 Dec 2021 13:52:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=sender:from:to:subject:date:message-id:in-reply-to:references :reply-to:mime-version:content-transfer-encoding; bh=aCFRmkGW1kiPPRJMQqssI2gy7cLzuzG2T5taIc2Nj7E=; b=GYPJqg7+7V5S0t7MRIb3h1hxQJdA7eJ5qYHedVRAyDKEuWN1o+QGQu/yha6Kl5M7l6 DPNXm2NEbbTkGFJgg/GNxYE0JRYTdToiIwF/tkuT5FE8iiUuUW1oWP6NszbMMWLgaM9g aZ/1vsleodHiB4AWnJRLG0SwPV5CagaYRRZ8xlemRp7KQWtuBHLI3z/MoPPUIZuxG5DD 0mZnN8LA3W/HSlS+keecH6Jh1tflXzlnlVCnwnoBomJGBOX6RSYdAOvL8cdH73m5nDjr 2AAvGIMgwTGdTarfjXSrdAaz5nr8hxzD+UH8OClL1jYWBX/UkdoCWMujDyLDGp0LnBNp z9DA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:sender:from:to:subject:date:message-id :in-reply-to:references:reply-to:mime-version :content-transfer-encoding; bh=aCFRmkGW1kiPPRJMQqssI2gy7cLzuzG2T5taIc2Nj7E=; b=qvikWRFNAALIgbgGtDGcek9hUPrdBZVcARHFo8JQSjG0uT7OniimxJpF31MXd68S4G o0H9CCyhN9s2syPNaaUZfO8h4opIVo86Omz+JeyDXpqG3UcQxhMvXfJOIfvAmknF6pEh F1aiaybgmGk+LqTWCSItxAH0hfoTl+wjCIBLIfDExtseDyChwG3CLDlwtyLvYKnm6x5v JBYyExBtgS/WNbnWaF9la+6w9+MW8hKqWEUeoB6ILGFOAGrTiMB5AiMKyC7ZRPGW2zg7 BaCt2vkU4eyDhTYbwT8Ip9ZPv3pezd2vx2H4l07mTBwtqZEwPglwIuiysIF1Sozpxew6 Okcw== X-Gm-Message-State: AOAM533Z/bsR0KXBPLiP/td9Fp4bORRkUoAlYSOHTDT5Nmwv5JMOicAj kj7n2FpfyD2zNYKsB3kC+0s= X-Google-Smtp-Source: ABdhPJyRziL/zw/qNwTj66zOwrkHrzN1VZ6IlfBMjavgdZV+gwHbjI0KgOXJG3d4m9sXZBnYEAFzGQ== X-Received: by 2002:a17:907:2ce3:: with SMTP id hz3mr6280563ejc.737.1640382743610; Fri, 24 Dec 2021 13:52:23 -0800 (PST) Received: from localhost.localdomain (bband-dyn119.178-40-49.t-com.sk. [178.40.49.119]) by smtp.gmail.com with ESMTPSA id di5sm3021692ejc.45.2021.12.24.13.52.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 24 Dec 2021 13:52:23 -0800 (PST) Sender: Peter Vasil From: peter.vasil@gmail.com To: peter.vasil@gmail.com, linux-omap@vger.kernel.org Subject: [PATCH 1/6] dt-bindings: leds: Nokia Tahvo/Betty ASIC LEDPWM controller Date: Fri, 24 Dec 2021 22:39:19 +0100 Message-Id: <20211224214512.1583430-2-peter.vasil@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211224214512.1583430-1-peter.vasil@gmail.com> References: <20211224214512.1583430-1-peter.vasil@gmail.com> Reply-To: peter.vasil@gmail.com MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org From: Peter Vasil One of the functions of Tahvo/Betty ASIC MFD chip is a PWM output able to drive LED with 127 levels of brightness. On Nokia N8x0 Internet Tablet devices, this controls the LCD backlight. Reviewed-by: Tony Lindgren --- .../bindings/leds/nokia,tahvo-ledpwm.yaml | 32 +++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 Documentation/devicetree/bindings/leds/nokia,tahvo-ledpwm.yaml diff --git a/Documentation/devicetree/bindings/leds/nokia,tahvo-ledpwm.yaml b/Documentation/devicetree/bindings/leds/nokia,tahvo-ledpwm.yaml new file mode 100644 index 000000000000..6f6d9e4a9425 --- /dev/null +++ b/Documentation/devicetree/bindings/leds/nokia,tahvo-ledpwm.yaml @@ -0,0 +1,32 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/leds/nokia,tahvo-ledpwm.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Nokia Tahvo/Betty ASIC LEDPWM controller + +maintainers: + - Peter Vasil + +description: + One of the functions of Tahvo/Betty ASIC MFD chip is a PWM output able to + drive LED with 127 levels of brightness. + On Nokia N8x0 Internet Tablet devices, this controls the LCD backlight. + +properties: + compatible: + const: nokia,tahvo-ledpwm + +additionalProperties: false + +examples: + - | + + tahvo { + tahvo_ledpwm { + compatible = "nokia,tahvo-ledpwm"; + }; + }; + +...