* [PATCH v4 0/1] Put the OMAP2 SPI CS in inactive state when returning from suspend
@ 2010-11-12 23:44 Gregory CLEMENT
2010-11-13 1:07 ` Grant Likely
0 siblings, 1 reply; 2+ messages in thread
From: Gregory CLEMENT @ 2010-11-12 23:44 UTC (permalink / raw)
To: linux-omap, spi-devel-general; +Cc: David Brownell, Grant Likely, Kevin Hilman
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(-)
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH v4 0/1] Put the OMAP2 SPI CS in inactive state when returning from suspend
2010-11-12 23:44 [PATCH v4 0/1] Put the OMAP2 SPI CS in inactive state when returning from suspend Gregory CLEMENT
@ 2010-11-13 1:07 ` Grant Likely
0 siblings, 0 replies; 2+ messages in thread
From: Grant Likely @ 2010-11-13 1:07 UTC (permalink / raw)
To: Gregory CLEMENT
Cc: linux-omap, spi-devel-general, David Brownell, Kevin Hilman
On Fri, Nov 12, 2010 at 4:44 PM, Gregory CLEMENT
<gregory.clement@free-electrons.com> wrote:
> 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(-)
Hi Gregory,
If you've only got one patch then please put all the explanation text
into the patch description. Using a cover letter like this is only
useful when describing the context for a series (more than 1) of
patches. Also, revision history should always be in patch
description, regardless of whether or not there is a cover letter (at
least for the subsystems that I maintain. Otherwise, it is too easy
for vital information to get separated from the patch.
Thanks,
g.
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