From patchwork Thu Apr 16 13:24:41 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 227750 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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, 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 03E0BC2BB55 for ; Thu, 16 Apr 2020 14:45:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C4C33206B9 for ; Thu, 16 Apr 2020 14:45:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1587048354; bh=IFWJtKO8b6hb9xBju8DtQHaiyO8+G0f/3xvR3wpJ/4I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=mQjreoXidOGGoiCUEN6+3OwTQnHdx5ZHBNvEtstzobjK1E5n8aVlSuWX2vN82Cifu WxJ1TniEfJTvqTn7BsKRPumakcC3XDGAsHhx3TFfv/nzIsBiVEePHX0NSqfjfID4sR DteP0tryF/7SLWcWIcCWhNznbsj6PzKlRSrZcWBQ= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2394635AbgDPOpw (ORCPT ); Thu, 16 Apr 2020 10:45:52 -0400 Received: from mail.kernel.org ([198.145.29.99]:46598 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2392592AbgDPN7g (ORCPT ); Thu, 16 Apr 2020 09:59:36 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (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 EB75620786; Thu, 16 Apr 2020 13:59:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1587045576; bh=IFWJtKO8b6hb9xBju8DtQHaiyO8+G0f/3xvR3wpJ/4I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bRecKllOfEqIH3nc+kYlMOLEq46oax3qxgD2GJMvcWbEWvl1Pk2G5MSPqpLyTLPjP 7+vcdg9a7mc9rTy1vxhXPHKjC6LHeHLEaDp4Ychi5iGtBLO9mKHFj3EOIPhy42Kc+V 3s/E5LvWEsdseZ9+sndMd9WWmxdliLqNv8zxFV44= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Marek Szyprowski , Andrzej Hajda , Krzysztof Kozlowski Subject: [PATCH 5.6 192/254] ARM: dts: exynos: Fix polarity of the LCD SPI bus on UniversalC210 board Date: Thu, 16 Apr 2020 15:24:41 +0200 Message-Id: <20200416131350.284440670@linuxfoundation.org> X-Mailer: git-send-email 2.26.1 In-Reply-To: <20200416131325.804095985@linuxfoundation.org> References: <20200416131325.804095985@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Marek Szyprowski commit 32a1671ff8e84f0dfff3a50d4b2091d25e91f5e2 upstream. Recent changes in the SPI core and the SPI-GPIO driver revealed that the GPIO lines for the LD9040 LCD controller on the UniversalC210 board are defined incorrectly. Fix the polarity for those lines to match the old behavior and hardware requirements to fix LCD panel operation with recent kernels. Cc: # 5.0.x Signed-off-by: Marek Szyprowski Reviewed-by: Andrzej Hajda Signed-off-by: Krzysztof Kozlowski Signed-off-by: Greg Kroah-Hartman --- arch/arm/boot/dts/exynos4210-universal_c210.dts | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) --- a/arch/arm/boot/dts/exynos4210-universal_c210.dts +++ b/arch/arm/boot/dts/exynos4210-universal_c210.dts @@ -115,7 +115,7 @@ gpio-sck = <&gpy3 1 GPIO_ACTIVE_HIGH>; gpio-mosi = <&gpy3 3 GPIO_ACTIVE_HIGH>; num-chipselects = <1>; - cs-gpios = <&gpy4 3 GPIO_ACTIVE_HIGH>; + cs-gpios = <&gpy4 3 GPIO_ACTIVE_LOW>; lcd@0 { compatible = "samsung,ld9040"; @@ -124,8 +124,6 @@ vci-supply = <&ldo17_reg>; reset-gpios = <&gpy4 5 GPIO_ACTIVE_HIGH>; spi-max-frequency = <1200000>; - spi-cpol; - spi-cpha; power-on-delay = <10>; reset-delay = <10>; panel-width-mm = <90>;