From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kyoungil Kim Subject: [PATCH] spi: Keep chipselect assertion during one message Date: Wed, 23 May 2012 21:34:06 +0900 Message-ID: <00a001cd38e0$57efde60$07cf9b20$%kim@samsung.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Return-path: Received: from mailout3.samsung.com ([203.254.224.33]:19038 "EHLO mailout3.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751039Ab2EWMeH (ORCPT ); Wed, 23 May 2012 08:34:07 -0400 Received: from epcpsbgm1.samsung.com (mailout3.samsung.com [203.254.224.33]) by mailout3.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0M4H007586WES2L0@mailout3.samsung.com> for linux-samsung-soc@vger.kernel.org; Wed, 23 May 2012 21:34:06 +0900 (KST) Received: from DOKI0351KIM04 ([12.23.119.96]) by mmp1.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0M4H007U46WUGX90@mmp1.samsung.com> for linux-samsung-soc@vger.kernel.org; Wed, 23 May 2012 21:34:06 +0900 (KST) Content-language: ko Sender: linux-samsung-soc-owner@vger.kernel.org List-Id: linux-samsung-soc@vger.kernel.org To: spi-devel-general@lists.sourceforge.net, linux-samsung-soc@vger.kernel.org Cc: 'Grant Likely' , 'Kukjin Kim' , 'Kyoungil Kim' During all transfers in one message, the device will not be chagned. So we don't need to deassert chipselect during one message. Signed-off-by: Kyoungil Kim --- drivers/spi/spi-s3c64xx.c | 2 -- 1 files changed, 0 insertions(+), 2 deletions(-) diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c index 972a94c..0f79f5b 100644 --- a/drivers/spi/spi-s3c64xx.c +++ b/drivers/spi/spi-s3c64xx.c @@ -745,8 +745,6 @@ static int s3c64xx_spi_transfer_one_message(struct spi_master *master, if (list_is_last(&xfer->transfer_list, &msg->transfers)) cs_toggle = 1; - else - disable_cs(sdd, spi); } msg->actual_length += xfer->len; -- 1.7.1