From patchwork Fri Oct 23 03:50:38 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: 534730 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 21DF6140DAE for ; Fri, 23 Oct 2015 14:52:01 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752722AbbJWDvB (ORCPT ); Thu, 22 Oct 2015 23:51:01 -0400 Received: from smtp.csie.ntu.edu.tw ([140.112.30.61]:50934 "EHLO smtp.csie.ntu.edu.tw" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751846AbbJWDu7 (ORCPT ); Thu, 22 Oct 2015 23:50:59 -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 0D7022071E; Fri, 23 Oct 2015 11:50:57 +0800 (CST) Received: by mirror2.csie.ntu.edu.tw (Postfix, from userid 1000) id D7C9E5F957; Fri, 23 Oct 2015 11:50:56 +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 , Maxime Ripard 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 v4 1/4] dt-bindings: simplefb: Support regulator supply properties Date: Fri, 23 Oct 2015 11:50:38 +0800 Message-Id: <1445572241-13259-2-git-send-email-wens@csie.org> X-Mailer: git-send-email 2.6.1 In-Reply-To: <1445572241-13259-1-git-send-email-wens@csie.org> References: <1445572241-13259-1-git-send-email-wens@csie.org> Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org 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. Instead just support any named regulator supply properties under the device node. These should be properly named to match the device schematics / design. The driver should take care to go through them all. Signed-off-by: Chen-Yu Tsai Reviewed-by: Hans de Goede Acked-by: Mark Brown --- .../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";