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,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, 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 56268C55178 for ; Tue, 27 Oct 2020 16:53:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 09D3820728 for ; Tue, 27 Oct 2020 16:52:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603817580; bh=LPqOlev/bUSQucDrLtmXED23AR4eWF+sSZ6rTK/mq80=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=wqGLFufxih06UcDCrmY7mO29/xEqq0T15y453kSgdh3Uvo5isipN3EaCrFinPMsLW N9h724XWXOSwXMhGFuSxuJr/QYqxVcBvB5O4zUGuhu2tnxogmGU+CnKO8BjX8fyR2b 11Ph1hBCzwlwfFSS/2qK0WoHCRGTP4OeqVNMW0Y4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1813655AbgJ0Qw6 (ORCPT ); Tue, 27 Oct 2020 12:52:58 -0400 Received: from mail.kernel.org ([198.145.29.99]:50308 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1794769AbgJ0PN2 (ORCPT ); Tue, 27 Oct 2020 11:13:28 -0400 Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id F05AB20657; Tue, 27 Oct 2020 15:13:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603811608; bh=LPqOlev/bUSQucDrLtmXED23AR4eWF+sSZ6rTK/mq80=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=HEWm8QTZ/WIoJ77QM8wg8HQuCfTrmhNhY0wJOt/iFCT11OLgi6+5v+C3Iz2NcUnFL 39XcNndYW/3Y8T633dUUEulRwqE81DYm9iSE8HgxgdQ5G+NDj4InhrTlrWJN0FUZq/ GZC6C4lckclr34soc3qLpUI8WW7nbbhiiPd3C0i8= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Biju Das , Laurent Pinchart , Geert Uytterhoeven , Sasha Levin Subject: [PATCH 5.8 512/633] ARM: dts: iwg20d-q7-common: Fix touch controller probe failure Date: Tue, 27 Oct 2020 14:54:15 +0100 Message-Id: <20201027135546.761501846@linuxfoundation.org> X-Mailer: git-send-email 2.29.1 In-Reply-To: <20201027135522.655719020@linuxfoundation.org> References: <20201027135522.655719020@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Biju Das [ Upstream commit 08d7a73fffb6769b1cf2278bf697e692daba3abf ] As per the iWave RZ/G1M schematic, the signal LVDS_PPEN controls the supply voltage for the touch panel, LVDS receiver and RGB LCD panel. Add a regulator for these device nodes and remove the powerdown-gpios property from the lvds-receiver node as it results in a touch controller driver probe failure. Fixes: 6f89dd9e9325 ("ARM: dts: iwg20d-q7-common: Add LCD support") Signed-off-by: Biju Das Reviewed-by: Laurent Pinchart Link: https://lore.kernel.org/r/20200924080535.3641-1-biju.das.jz@bp.renesas.com Signed-off-by: Geert Uytterhoeven Signed-off-by: Sasha Levin --- 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 ebbe1518ef8a6..63cafd220dba1 100644 --- a/arch/arm/boot/dts/iwg20d-q7-common.dtsi +++ b/arch/arm/boot/dts/iwg20d-q7-common.dtsi @@ -57,7 +57,7 @@ lcd_backlight: backlight { 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 @@ lvds_receiver_out: endpoint { panel { compatible = "edt,etm0700g0dh6"; backlight = <&lcd_backlight>; + power-supply = <&vcc_3v3_tft1>; port { panel_in: endpoint { @@ -113,6 +114,17 @@ sndcodec: simple-audio-card,codec { }; }; + 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 @@ touch: touchpanel@38 { reg = <0x38>; interrupt-parent = <&gpio2>; interrupts = <12 IRQ_TYPE_EDGE_FALLING>; + vcc-supply = <&vcc_3v3_tft1>; }; }; -- 2.25.1