From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3B0EAC2BA83 for ; Fri, 14 Feb 2020 08:26:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 17ED6222C2 for ; Fri, 14 Feb 2020 08:26:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728479AbgBNI01 (ORCPT ); Fri, 14 Feb 2020 03:26:27 -0500 Received: from xavier.telenet-ops.be ([195.130.132.52]:54182 "EHLO xavier.telenet-ops.be" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726769AbgBNI01 (ORCPT ); Fri, 14 Feb 2020 03:26:27 -0500 Received: from ramsan ([84.195.182.253]) by xavier.telenet-ops.be with bizsmtp id 2YSQ2200V5USYZQ01YSQXn; Fri, 14 Feb 2020 09:26:25 +0100 Received: from rox.of.borg ([192.168.97.57]) by ramsan with esmtp (Exim 4.90_1) (envelope-from ) id 1j2WIq-0005Cj-Es; Fri, 14 Feb 2020 09:26:24 +0100 Received: from geert by rox.of.borg with local (Exim 4.90_1) (envelope-from ) id 1j2WIq-0001Hf-Bu; Fri, 14 Feb 2020 09:26:24 +0100 From: Geert Uytterhoeven To: Laurent Pinchart , Kieran Bingham , David Airlie , Daniel Vetter , Rob Herring , Mark Rutland Cc: dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org, Geert Uytterhoeven Subject: [PATCH v5] dt-bindings: display: renesas: du: Document optional reset properties Date: Fri, 14 Feb 2020 09:26:23 +0100 Message-Id: <20200214082623.4893-1-geert+renesas@glider.be> X-Mailer: git-send-email 2.17.1 Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org Document the optional properties for describing module resets, to support resetting display channels on R-Car Gen2 and Gen3. Signed-off-by: Geert Uytterhoeven Acked-by: Laurent Pinchart Acked-by: Rob Herring --- Who's taking this kind of patches? V1 was submmitted in March 2017. v5: - Rebase on top of renesas,cmms and renesas,vsps patches, v4: - Use "All but R8A7779" instead of "R8A779[0123456]", to reduce future churn, v3: - Add Acked-by, - Drop LVDS resets, as LVDS is now covered by a separate binding, - Update the example. v2: - s/phandles/phandle/. --- .../devicetree/bindings/display/renesas,du.txt | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/Documentation/devicetree/bindings/display/renesas,du.txt b/Documentation/devicetree/bindings/display/renesas,du.txt index eb4ae41fe41f83c7..51cd4d1627703a15 100644 --- a/Documentation/devicetree/bindings/display/renesas,du.txt +++ b/Documentation/devicetree/bindings/display/renesas,du.txt @@ -50,6 +50,14 @@ Required Properties: VSP instance that serves the DU channel, and the channel index identifies the LIF instance in that VSP. +Optional properties: + - resets: A list of phandle + reset-specifier pairs, one for each entry in + the reset-names property. + - reset-names: Names of the resets. This property is model-dependent. + - All but R8A7779 use one reset for a group of one or more successive + channels. The resets must be named "du.x" with "x" being the numerical + index of the lowest channel in the group. + Required nodes: The connections to the DU output video ports are modeled using the OF graph @@ -96,6 +104,8 @@ Example: R8A7795 (R-Car H3) ES2.0 DU <&cpg CPG_MOD 722>, <&cpg CPG_MOD 721>; clock-names = "du.0", "du.1", "du.2", "du.3"; + resets = <&cpg 724>, <&cpg 722>; + reset-names = "du.0", "du.2"; renesas,cmms = <&cmm0>, <&cmm1>, <&cmm2>, <&cmm3>; renesas,vsps = <&vspd0 0>, <&vspd1 0>, <&vspd2 0>, <&vspd0 1>; -- 2.17.1