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=-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,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 44AB0C2BB55 for ; Thu, 16 Apr 2020 13:50:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 19CDF20786 for ; Thu, 16 Apr 2020 13:50:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1587045032; bh=IFWJtKO8b6hb9xBju8DtQHaiyO8+G0f/3xvR3wpJ/4I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=Ed8cEQf7OhuiDVxvKn9NFEVon+4nikoCjAb3XkTYRXEH6JA6dODJtpDu29nzPESKC rfSBVc5w/xC9cN5J5vx2pBHU3xv0NNGqLlnYsVXWex08si9mrjfuXtdTXBjzxL1j0O dy5DFNDTJIZPSvOQD7fmM+LT0rYwNStfGYawvEdg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2392349AbgDPNuV (ORCPT ); Thu, 16 Apr 2020 09:50:21 -0400 Received: from mail.kernel.org ([198.145.29.99]:36154 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732651AbgDPNuM (ORCPT ); Thu, 16 Apr 2020 09:50:12 -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 6304220786; Thu, 16 Apr 2020 13:50:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1587045011; bh=IFWJtKO8b6hb9xBju8DtQHaiyO8+G0f/3xvR3wpJ/4I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IjeNy5rUhRU5aALrX0SngQrFj9FO4vFJjZIpUXRJR8D3qNmwDPDoogRQV0ODsbQFE PBKuC1jn4TOiq1t2yOCaAh9WBXaORWvRh/G+MWBdLhyMRPq1rNwcjxBLYRCpeoEsp+ mDjaJrGpaPc9E/U+j+gvZBN8vOZ/tf9WcUVbC2bI= 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 5.4 176/232] ARM: dts: exynos: Fix polarity of the LCD SPI bus on UniversalC210 board Date: Thu, 16 Apr 2020 15:24:30 +0200 Message-Id: <20200416131337.049796282@linuxfoundation.org> X-Mailer: git-send-email 2.26.1 In-Reply-To: <20200416131316.640996080@linuxfoundation.org> References: <20200416131316.640996080@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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>;