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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 6F1E1C4727F for ; Thu, 24 Sep 2020 08:05:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 308042311A for ; Thu, 24 Sep 2020 08:05:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727258AbgIXIFp (ORCPT ); Thu, 24 Sep 2020 04:05:45 -0400 Received: from relmlor1.renesas.com ([210.160.252.171]:63049 "EHLO relmlie5.idc.renesas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727013AbgIXIFo (ORCPT ); Thu, 24 Sep 2020 04:05:44 -0400 X-IronPort-AV: E=Sophos;i="5.77,296,1596466800"; d="scan'208";a="58035686" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 24 Sep 2020 17:05:40 +0900 Received: from localhost.localdomain (unknown [172.29.53.102]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id C80874205335; Thu, 24 Sep 2020 17:05:38 +0900 (JST) From: Biju Das To: Rob Herring Cc: Biju Das , Geert Uytterhoeven , Magnus Damm , linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org, Chris Paterson , Biju Das , Prabhakar Mahadev Lad Subject: [PATCH] ARM: dts: iwg20d-q7-common: Fix touch controller probe failure Date: Thu, 24 Sep 2020 09:05:35 +0100 Message-Id: <20200924080535.3641-1-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.17.1 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org As per the iWave RZ/G1M schematic, the signal LVDS_PPEN controls supply voltage for touch panel, LVDS receiver and RGB LCD panel. Add regulator for these device nodes and remove powerdown-gpios property from lvds-receiver node as it results in touch controller driver probe failure. Signed-off-by: Biju Das Reviewed-by: Laurent Pinchart --- v4->v5 : Restored Laurent's Rb tag, since it is minor change, renaming vcc-supply to power-supply v3->v4 : Incorporated Laurent's review comments(https://patchwork.kernel.org/patch/11707887/) Added Laurent's Reviewed-by tag v2->v3 : Added the missing part from the patch. removal of powerdown-gpios property. v1->v2 : Add regulator in touch panel, LVDS receiver and RGB LCD panel device nodes (Ref: https://patchwork.kernel.org/patch/11707559/) v1 : https://patchwork.kernel.org/patch/11705819/ --- arch/arm/boot/dts/iwg20d-q7-common.dtsi | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/iwg20d-q7-common.dtsi b/arch/arm/boot/dts/iwg20d-q7-common.dtsi index ebbe1518ef8a..63cafd220dba 100644 --- a/arch/arm/boot/dts/iwg20d-q7-common.dtsi +++ b/arch/arm/boot/dts/iwg20d-q7-common.dtsi @@ -57,7 +57,7 @@ lvds-receiver { compatible = "ti,ds90cf384a", "lvds-decoder"; - powerdown-gpios = <&gpio7 25 GPIO_ACTIVE_LOW>; + power-supply = <&vcc_3v3_tft1>; ports { #address-cells = <1>; @@ -81,6 +81,7 @@ panel { compatible = "edt,etm0700g0dh6"; backlight = <&lcd_backlight>; + power-supply = <&vcc_3v3_tft1>; port { panel_in: endpoint { @@ -113,6 +114,17 @@ }; }; + vcc_3v3_tft1: regulator-panel { + compatible = "regulator-fixed"; + + regulator-name = "vcc-3v3-tft1"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + enable-active-high; + startup-delay-us = <500>; + gpio = <&gpio7 25 GPIO_ACTIVE_HIGH>; + }; + vcc_sdhi1: regulator-vcc-sdhi1 { compatible = "regulator-fixed"; @@ -207,6 +219,7 @@ reg = <0x38>; interrupt-parent = <&gpio2>; interrupts = <12 IRQ_TYPE_EDGE_FALLING>; + vcc-supply = <&vcc_3v3_tft1>; }; }; -- 2.17.1