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 1C7E1C388F9 for ; Tue, 27 Oct 2020 15:33:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B7A632225E for ; Tue, 27 Oct 2020 15:33:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603812800; bh=mGVoD2VcHSgQ3Z9sdrnPiUekRcAb3+4creFyTeT8P0k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=ndAqwi7myYaBrUcRYDWyt9i1ifk14aEWntby3cycMOGzEarNnhYWABldmLyXL1Tx4 glSf+PBrDs6Icq8PvebwumRup86r688M2q66dQoNv5R2haTB/cGGXkAGZqUHrSl5yv fQJpgr+uqzStdPah3lOZehBAZMw60DdKEPo1hhF8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1799781AbgJ0PdT (ORCPT ); Tue, 27 Oct 2020 11:33:19 -0400 Received: from mail.kernel.org ([198.145.29.99]:41172 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1798198AbgJ0P0b (ORCPT ); Tue, 27 Oct 2020 11:26:31 -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 044C820657; Tue, 27 Oct 2020 15:26:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603812390; bh=mGVoD2VcHSgQ3Z9sdrnPiUekRcAb3+4creFyTeT8P0k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YEnDWqqkzWKc6eq8MkgCs4mf7eRwPWR7H554HCLjyHMBR4FSPwhWElHTq/X7ywfMT 03P493jvGCTWaTLnYhHzqZqciyy3qtFX3r94zra9DJIm3tmxBWWKs2/4m5MDhx8eZr AhgELyzaS1v7TLoV82iQwwIGjTCs70s8wIh7DuGU= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Krzysztof Kozlowski , =?UTF-8?q?=C5=81ukasz=20Stelmach?= , Mark Brown , Sasha Levin Subject: [PATCH 5.9 175/757] spi: spi-s3c64xx: swap s3c64xx_spi_set_cs() and s3c64xx_enable_datapath() Date: Tue, 27 Oct 2020 14:47:05 +0100 Message-Id: <20201027135458.803095375@linuxfoundation.org> X-Mailer: git-send-email 2.29.1 In-Reply-To: <20201027135450.497324313@linuxfoundation.org> References: <20201027135450.497324313@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: Łukasz Stelmach [ Upstream commit 581e2b41977dfc2d4c26c8e976f89c43bb92f9bf ] Fix issues with DMA transfers bigger than 512 bytes on Exynos3250. Without the patches such transfers fail to complete. This solution to the problem is found in the vendor kernel for ARTIK5 boards based on Exynos3250. Reviewed-by: Krzysztof Kozlowski Signed-off-by: Łukasz Stelmach Link: https://lore.kernel.org/r/20201002122243.26849-2-l.stelmach@samsung.com Signed-off-by: Mark Brown Signed-off-by: Sasha Levin --- drivers/spi/spi-s3c64xx.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c index 924b24441789a..26c7cb79cd784 100644 --- a/drivers/spi/spi-s3c64xx.c +++ b/drivers/spi/spi-s3c64xx.c @@ -685,11 +685,11 @@ static int s3c64xx_spi_transfer_one(struct spi_master *master, sdd->state &= ~RXBUSY; sdd->state &= ~TXBUSY; - s3c64xx_enable_datapath(sdd, xfer, use_dma); - /* Start the signals */ s3c64xx_spi_set_cs(spi, true); + s3c64xx_enable_datapath(sdd, xfer, use_dma); + spin_unlock_irqrestore(&sdd->lock, flags); if (use_dma) -- 2.25.1