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=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,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 60B3FC43332 for ; Tue, 2 Mar 2021 00:24:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2B69F60232 for ; Tue, 2 Mar 2021 00:24:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345003AbhCBAVI (ORCPT ); Mon, 1 Mar 2021 19:21:08 -0500 Received: from mail.kernel.org ([198.145.29.99]:41521 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239633AbhCASYY (ORCPT ); Mon, 1 Mar 2021 13:24:24 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id CE3E265101; Mon, 1 Mar 2021 17:02:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1614618136; bh=vAoKC/oQSeRRYOHmfGbX1pUThqpyunmz1aqUmqw9eds=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=TbbRJkwWeNKEOBeIoRcT7WZINlmqtrpJIy+Elxt5+EDkvKkVpT6xxsUY5wOpszCae yJhO4ihA9Yp4FW3bfFuoarE2BXxQS+AQu1EGv/liyuCHXWF4fx06WFIvT+OR2dLpHm TRjk6YSZVmFD+adPKZKiuhhFQjX9tLRPhPsvhTt4= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Masahisa Kojima , Jassi Brar , Mark Brown Subject: [PATCH 5.4 319/340] spi: spi-synquacer: fix set_cs handling Date: Mon, 1 Mar 2021 17:14:23 +0100 Message-Id: <20210301161103.992369522@linuxfoundation.org> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210301161048.294656001@linuxfoundation.org> References: <20210301161048.294656001@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: Masahisa Kojima commit 1c9f1750f0305bf605ff22686fc0ac89c06deb28 upstream. When the slave chip select is deasserted, DMSTOP bit must be set. Fixes: b0823ee35cf9 ("spi: Add spi driver for Socionext SynQuacer platform") Signed-off-by: Masahisa Kojima Signed-off-by: Jassi Brar Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20210201073109.9036-1-jassisinghbrar@gmail.com Signed-off-by: Mark Brown Signed-off-by: Greg Kroah-Hartman --- drivers/spi/spi-synquacer.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/drivers/spi/spi-synquacer.c +++ b/drivers/spi/spi-synquacer.c @@ -490,6 +490,10 @@ static void synquacer_spi_set_cs(struct val &= ~(SYNQUACER_HSSPI_DMPSEL_CS_MASK << SYNQUACER_HSSPI_DMPSEL_CS_SHIFT); val |= spi->chip_select << SYNQUACER_HSSPI_DMPSEL_CS_SHIFT; + + if (!enable) + val |= SYNQUACER_HSSPI_DMSTOP_STOP; + writel(val, sspi->regs + SYNQUACER_HSSPI_REG_DMSTART); }