From: Gregory CLEMENT <gregory.clement@free-electrons.com>
To: linux-omap <linux-omap@vger.kernel.org>,
spi-devel-general <spi-devel-general@lists.sourceforge.net>
Cc: David Brownell <dbrownell@users.sourceforge.net>,
Grant Likely <grant.likely@secretlab.ca>,
Kevin Hilman <khilman@deeprootsystems.com>
Subject: [PATCH v4 0/1] Put the OMAP2 SPI CS in inactive state when returning from suspend
Date: Sat, 13 Nov 2010 00:44:11 +0100 [thread overview]
Message-ID: <4CDDD14B.1010706@free-electrons.com> (raw)
We notice that when system wake up from OFF mode, then CS is in inactive
state until the first SPI transfer.
For our design it lead to some conflict on this I/O.
Inactive state for CS when there is no transfer should be the correct
behavior: this is the purpose of these patches.
* Change from v3:
Patch clean-up according to Kevin Hilman and checkpatch.
Now force CS to be in inactive state only if it was inactive when it was
suspended.
Gregory CLEMENT (1):
OMAP2: Spi: Force CS to be in inactive state after off-mode
transition
drivers/spi/omap2_mcspi.c | 35 +++++++++++++++++++++++++++++++++++
1 files changed, 35 insertions(+), 0 deletions(-)
next reply other threads:[~2010-11-12 23:44 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-12 23:44 Gregory CLEMENT [this message]
2010-11-13 1:07 ` [PATCH v4 0/1] Put the OMAP2 SPI CS in inactive state when returning from suspend Grant Likely
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