linux-kernel - Re: [PATCH 1/2] phy: ti-pipe3: Disable clocks on system suspend

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Message-ID: <54B3922F.3010501@ti.com>
Date:	Mon, 12 Jan 2015 11:21:51 +0200
From:	Roger Quadros <rogerq@...com>
To:	Kishon Vijay Abraham I <kishon@...com>, <tony@...mide.com>
CC:	<nm@...com>, <balbi@...com>, <george.cherian@...com>,
	<nsekhar@...com>, <linux-omap@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] phy: ti-pipe3: Disable clocks on system suspend

Kishon,

On 09/01/15 15:57, Kishon Vijay Abraham I wrote:
> Hi Roger,
> 
> On Friday 19 December 2014 05:35 PM, Roger Quadros wrote:
>> On system suspend, the runtime_suspend() driver hook doesn't get
>> called and so the clocks are not disabled in the driver.
>> This causes the L3INIT_960M_GFCLK and L3INIT_480M_GFCLK to remain
>> active on the DRA7 platform while in system suspend.
>>
>> Add suspend/resume hooks to the driver.
>> In case of pcie-phy, the runtime_suspend hook gets called after
> 
> This contradicts with the first line of your commit message. Is pcie-phy driver
> is an exception?

Yes in the pcie-phy case it behaves differently. I'll rewrite the message.

cheers,
-roger

> 
> Thanks
> Kishon
> 
>> the suspend hook so we introduce a flag phy->enabled to keep
>> track if our clocks are enabled or not to prevent multiple
>> enable/disables.
>>
>> Move enabling/disabling clock code into helper functions.
>>
>> Reported-by: Nishant Menon <nm@...com>
>> Signed-off-by: Roger Quadros <rogerq@...com>

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