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=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 5BDEFC55178 for ; Tue, 27 Oct 2020 14:21:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2A60221D42 for ; Tue, 27 Oct 2020 14:21:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603808491; bh=ewlaxnRaadBePgHr+xb/RrbkFOIArvJHc4Jxdh9EBn8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=mjJlaDtLIhl3n2zRGnIggIXSRD0wjRVDswMOLEVYYWauBqdyA1HgdH4hHptlCwKca 9srmxYN5JS+/P07g542F6wS3zeNNfDUuwLA8alXDg9Yr6N3bY/eoZ9dgXioxHNbpGa vZMFXxIQybZjptfqXNF63Ft/Kh5AzV5DyrRkAzAs= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758596AbgJ0OV3 (ORCPT ); Tue, 27 Oct 2020 10:21:29 -0400 Received: from mail.kernel.org ([198.145.29.99]:43406 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757420AbgJ0OT1 (ORCPT ); Tue, 27 Oct 2020 10:19:27 -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 60694206D4; Tue, 27 Oct 2020 14:19:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603808367; bh=ewlaxnRaadBePgHr+xb/RrbkFOIArvJHc4Jxdh9EBn8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=w7ejmDnkM/V31UWwyQ7jW3PzeeMCwYswO2Nqiep18kNHChMe4EqfODAA3L/XEJsud JAkaLJeMufn7vu0D/zSV5gaI3T61NcbkolPjl90VPAt7UT0dALBWa+h7BGVrKNK1nE aTsHvI5lEpeogXjCHM4PoXIicBTQ6HikBmdfRIis= 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 4.19 064/264] spi: spi-s3c64xx: swap s3c64xx_spi_set_cs() and s3c64xx_enable_datapath() Date: Tue, 27 Oct 2020 14:52:02 +0100 Message-Id: <20201027135433.683971910@linuxfoundation.org> X-Mailer: git-send-email 2.29.1 In-Reply-To: <20201027135430.632029009@linuxfoundation.org> References: <20201027135430.632029009@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 7b7151ec14c8a..322f75f89c713 100644 --- a/drivers/spi/spi-s3c64xx.c +++ b/drivers/spi/spi-s3c64xx.c @@ -678,11 +678,11 @@ 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