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
next reply other threads:[~2012-05-23 12:34 UTC|newest]
Thread overview: 2+ 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
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