From patchwork Wed Oct 21 05:59:00 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chen-Yu Tsai X-Patchwork-Id: 7454501 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 2D31EBEEA4 for ; Wed, 21 Oct 2015 05:59:13 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 47E0F208A8 for ; Wed, 21 Oct 2015 05:59:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 624A6208A4 for ; Wed, 21 Oct 2015 05:59:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753237AbbJUF7J (ORCPT ); Wed, 21 Oct 2015 01:59:09 -0400 Received: from smtp.csie.ntu.edu.tw ([140.112.30.61]:43745 "EHLO smtp.csie.ntu.edu.tw" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753235AbbJUF7I (ORCPT ); Wed, 21 Oct 2015 01:59:08 -0400 Received: from mirror2.csie.ntu.edu.tw (mirror2.csie.ntu.edu.tw [140.112.30.76]) (Authenticated sender: b93043) by smtp.csie.ntu.edu.tw (Postfix) with ESMTPSA id CABA520A24; Wed, 21 Oct 2015 13:59:02 +0800 (CST) Received: by mirror2.csie.ntu.edu.tw (Postfix, from userid 1000) id 849D15F9B1; Wed, 21 Oct 2015 13:59:02 +0800 (CST) From: Chen-Yu Tsai To: Hans de Goede , Jean-Christophe Plagniol-Villard , Tomi Valkeinen , Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala Cc: Chen-Yu Tsai , linux-fbdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Mark Brown Subject: [PATCH RFC v2 1/2] dt-bindings: simplefb: Support a list of regulator supply properties Date: Wed, 21 Oct 2015 13:59:00 +0800 Message-Id: <1445407141-16459-2-git-send-email-wens@csie.org> X-Mailer: git-send-email 2.6.1 In-Reply-To: <1445407141-16459-1-git-send-email-wens@csie.org> References: <1445407141-16459-1-git-send-email-wens@csie.org> Sender: linux-fbdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org X-Spam-Status: No, score=-6.9 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 The physical display tied to the framebuffer may have regulators providing power to it, such as power for LCDs or interface conversion chips. The number of regulators in use may vary, but the regulator supply binding can not be a list. Work around this by adding a "num-supplies" property to communicate the number of supplies, and a list of 0 ~ N "vinN-supply" properties for the actual regulator supply. Signed-off-by: Chen-Yu Tsai Reviewed-by: Hans de Goede --- .../devicetree/bindings/video/simple-framebuffer.txt | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/Documentation/devicetree/bindings/video/simple-framebuffer.txt b/Documentation/devicetree/bindings/video/simple-framebuffer.txt index 4474ef6e0b95..8c9e9f515c87 100644 --- a/Documentation/devicetree/bindings/video/simple-framebuffer.txt +++ b/Documentation/devicetree/bindings/video/simple-framebuffer.txt @@ -47,10 +47,14 @@ Required properties: - a8b8g8r8 (32-bit pixels, d[31:24]=a, d[23:16]=b, d[15:8]=g, d[7:0]=r). Optional properties: -- clocks : List of clocks used by the framebuffer. Clocks listed here - are expected to already be configured correctly. The OS must - ensure these clocks are not modified or disabled while the - simple framebuffer remains active. +- clocks : List of clocks used by the framebuffer. +- *-supply : Any number of regulators used by the framebuffer. These should + be named according to the names in the device's design. + + The above resources are expected to already be configured correctly. + The OS must ensure they are not modified or disabled while the simple + framebuffer remains active. + - display : phandle pointing to the primary display hardware node Example: @@ -68,6 +72,7 @@ chosen { stride = <(1600 * 2)>; format = "r5g6b5"; clocks = <&ahb_gates 36>, <&ahb_gates 43>, <&ahb_gates 44>; + lcd-supply = <®_dc1sw>; display = <&lcdc0>; }; stdout-path = "display0";