From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
To: linux-sh@vger.kernel.org
Subject: Re: [PATCH 2/2] shdmac: extend PM methods
Date: Tue, 20 Jan 2015 19:41:44 +0000 [thread overview]
Message-ID: <54BEAF78.8060906@cogentembedded.com> (raw)
In-Reply-To: <7124495.gOhk31Ctg5@wasted.cogentembedded.com>
Hello.
On 01/20/2015 02:07 AM, Sergei Shtylyov wrote:
> In order to make it possible to restore from hibernation not only in Linux but
> also in e.g. U-Boot, we have to use sh_dmae_{suspend|resume}() for the {freeze|
> thaw|restore}() PM methods. It's handy to achieve this with SIMPLE_DEV_PM_OPS()
> macro; since that macro doesn't do anything when CONFIG_PM_SLEEP is undefined,
> we don't need to #define sh_dmae_{suspend|resume} NULL anymore; it seems safe to
> leave the #ifdef CONFIG_PM alone as this option is selected by CONFIG_PM_SLEEP
> anyway...
However, when CONFIG_PM is defined and CONFIG_PM_SLEEP is not, we'll still
get the function unused warnings... so I'm going to recast this patch
(actually, my first variant was correct).
> Based on orignal patch by Mikhail Ulyanov <mikhail.ulyanov@cogentembedded.com>.
> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
WBR, Sergei
prev parent reply other threads:[~2015-01-20 19:41 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-19 23:07 [PATCH 2/2] shdmac: extend PM methods Sergei Shtylyov
2015-01-20 19:41 ` Sergei Shtylyov [this message]
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