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From: Kyoungil Kim <ki0351.kim@samsung.com>
To: spi-devel-general@lists.sourceforge.net,
	linux-samsung-soc@vger.kernel.org
Cc: 'Grant Likely' <grant.likely@secretlab.ca>,
	'Kukjin Kim' <kgene.kim@samsung.com>,
	'Kyoungil Kim' <ki0351.kim@samsung.com>
Subject: [PATCH] spi: Keep chipselect assertion during one message
Date: Wed, 23 May 2012 21:34:06 +0900	[thread overview]
Message-ID: <00a001cd38e0$57efde60$07cf9b20$%kim@samsung.com> (raw)

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 <ki0351.kim@samsung.com>
---
 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

             reply	other threads:[~2012-05-23 12:34 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-05-23 12:34 Kyoungil Kim [this message]
     [not found] ` <00a001cd38e0$57efde60$07cf9b20$%kim-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2012-05-25 22:56   ` [PATCH] spi: Keep chipselect assertion during one message Grant Likely
2012-05-25 22:56     ` Grant Likely

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