From patchwork Mon Jul 1 15:14:23 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jean-Jacques Hiblot X-Patchwork-Id: 1125415 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=ti.com header.i=@ti.com header.b="O4tR6/E3"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 45crXC4Y1Rz9sPY for ; Tue, 2 Jul 2019 01:15:07 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730218AbfGAPPC (ORCPT ); Mon, 1 Jul 2019 11:15:02 -0400 Received: from lelv0142.ext.ti.com ([198.47.23.249]:36212 "EHLO lelv0142.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730212AbfGAPOn (ORCPT ); Mon, 1 Jul 2019 11:14:43 -0400 Received: from lelv0266.itg.ti.com ([10.180.67.225]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id x61FEWVw124747; Mon, 1 Jul 2019 10:14:32 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1561994072; bh=JcG9gVVC9mwkIN0YqGoNDTpuvdgqaymnMY5JFYhSq/s=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=O4tR6/E3/HWD8H/zU7izLsJxcg7wBVDnGv5aKXwvZEgEKxcY0earzKKrNLQ0j8qaG EnaNXgC1P88RzAwuCuo90x+1ROuI1p0Wsm5Egb9tdUgnhJXDh8WCvPGpl2BH4RPxxj Rhh1Qr/uCaVK5sTWUnej4DWzQLhmNLpGFATPHpO8= Received: from DFLE101.ent.ti.com (dfle101.ent.ti.com [10.64.6.22]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id x61FEW75055584 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 1 Jul 2019 10:14:32 -0500 Received: from DFLE107.ent.ti.com (10.64.6.28) by DFLE101.ent.ti.com (10.64.6.22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5; Mon, 1 Jul 2019 10:14:31 -0500 Received: from fllv0039.itg.ti.com (10.64.41.19) by DFLE107.ent.ti.com (10.64.6.28) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5 via Frontend Transport; Mon, 1 Jul 2019 10:14:31 -0500 Received: from localhost (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id x61FEV8U063793; Mon, 1 Jul 2019 10:14:31 -0500 From: Jean-Jacques Hiblot To: , , , , , , CC: , , , , , Jean-Jacques Hiblot , Subject: [PATCH 4/4] devicetree: Add led-backlight binding Date: Mon, 1 Jul 2019 17:14:23 +0200 Message-ID: <20190701151423.30768-5-jjhiblot@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190701151423.30768-1-jjhiblot@ti.com> References: <20190701151423.30768-1-jjhiblot@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Tomi Valkeinen Add DT binding for led-backlight. Signed-off-by: Tomi Valkeinen Signed-off-by: Jean-Jacques Hiblot Cc: devicetree@vger.kernel.org --- .../video/backlight/led-backlight.txt | 39 +++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 Documentation/devicetree/bindings/video/backlight/led-backlight.txt diff --git a/Documentation/devicetree/bindings/video/backlight/led-backlight.txt b/Documentation/devicetree/bindings/video/backlight/led-backlight.txt new file mode 100644 index 000000000000..216cd52d624a --- /dev/null +++ b/Documentation/devicetree/bindings/video/backlight/led-backlight.txt @@ -0,0 +1,39 @@ +led-backlight bindings + +The node of the backlight driver IS the node of the LED. + +Required properties: + - compatible: "led-backlight" + - brightness-levels: Array of distinct LED brightness levels. These + are in the range from 0 to 255, passed to the LED class driver. + - default-brightness-level: the default brightness level (index into the + array defined by the "brightness-levels" property) + +Optional properties: + - power-supply: regulator for supply voltage + - enable-gpios: contains a single GPIO specifier for the GPIO which enables + and disables the backlight (see GPIO binding[0]) + +[0]: Documentation/devicetree/bindings/gpio/gpio.txt + +Example: + +led_ctrl { + red_led@1 { + label = "red"; + reg = <1>; + } + + backlight_led@2 { + function = LED_FUNCTION_BACKLIGHT; + reg = <2>; + + compatible = "led-backlight"; + + brightness-levels = <0 4 8 16 32 64 128 255>; + default-brightness-level = <6>; + + power-supply = <&vdd_bl_reg>; + enable-gpios = <&gpio 58 0>; + }; +};