From patchwork Tue Aug 25 11:34:02 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 7070911 Return-Path: X-Original-To: patchwork-linux-fbdev@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id CDF01C05AD for ; Tue, 25 Aug 2015 11:34:33 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 0525620882 for ; Tue, 25 Aug 2015 11:34:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E712020884 for ; Tue, 25 Aug 2015 11:34:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755557AbbHYLe1 (ORCPT ); Tue, 25 Aug 2015 07:34:27 -0400 Received: from bear.ext.ti.com ([192.94.94.41]:46744 "EHLO bear.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753890AbbHYLe0 (ORCPT ); Tue, 25 Aug 2015 07:34:26 -0400 Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by bear.ext.ti.com (8.13.7/8.13.7) with ESMTP id t7PBYEkQ011055; Tue, 25 Aug 2015 06:34:14 -0500 Received: from DLEE71.ent.ti.com (dlee71.ent.ti.com [157.170.170.114]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id t7PBYEVi009247; Tue, 25 Aug 2015 06:34:14 -0500 Received: from dlep32.itg.ti.com (157.170.170.100) by DLEE71.ent.ti.com (157.170.170.114) with Microsoft SMTP Server id 14.3.224.2; Tue, 25 Aug 2015 06:34:14 -0500 Received: from deskari.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by dlep32.itg.ti.com (8.14.3/8.13.8) with ESMTP id t7PBY5au032677; Tue, 25 Aug 2015 06:34:12 -0500 From: Tomi Valkeinen To: Jacek Anaszewski , Jingoo Han , Lee Jones , , CC: Andrew Lunn , Tomi Valkeinen Subject: [PATCH 3/3] devicetree: Add led-backlight binding Date: Tue, 25 Aug 2015 14:34:02 +0300 Message-ID: <1440502442-19531-4-git-send-email-tomi.valkeinen@ti.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1440502442-19531-1-git-send-email-tomi.valkeinen@ti.com> References: <1440502442-19531-1-git-send-email-tomi.valkeinen@ti.com> MIME-Version: 1.0 Sender: linux-fbdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org X-Spam-Status: No, score=-8.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add DT binding for led-backlight. Signed-off-by: Tomi Valkeinen --- .../bindings/video/backlight/led-backlight.txt | 30 ++++++++++++++++++++++ 1 file changed, 30 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..fb77051ac230 --- /dev/null +++ b/Documentation/devicetree/bindings/video/backlight/led-backlight.txt @@ -0,0 +1,30 @@ +led-backlight bindings + +Required properties: + - compatible: "led-backlight" + - leds: phandle to a led OF node [0] + - 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) + - power-supply: regulator for supply voltage + +Optional properties: + - enable-gpios: contains a single GPIO specifier for the GPIO which enables + and disables the backlight (see GPIO binding[1]) + +[0]: Documentation/devicetree/bindings/leds/common.txt +[1]: Documentation/devicetree/bindings/gpio/gpio.txt + +Example: + + backlight { + compatible = "led-backlight"; + leds = <&backlight_led>; + + brightness-levels = <0 4 8 16 32 64 128 255>; + default-brightness-level = <6>; + + power-supply = <&vdd_bl_reg>; + enable-gpios = <&gpio 58 0>; + };