linux-kernel - Re: [PATCH] i2c/designware: enable i2c controller to suspend/resume asynchronously

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Message-ID: <55DB36FE.10204@linux.intel.com>
Date:	Mon, 24 Aug 2015 23:23:42 +0800
From:	"Fu, Zhonghui" <zhonghui.fu@...ux.intel.com>
To:	wsa@...-dreams.de
CC:	Mika Westerberg <mika.westerberg@...ux.intel.com>,
	christian.ruppert@...tech.com, atull@...nsource.altera.com,
	jszhang@...vell.com, raymond.tan@...el.com,
	Romain.Baeriswyl@...lis.com, carlpeng008@...il.com,
	david.e.box@...ux.intel.com, Alexey.Brodkin@...opsys.com,
	linux-i2c@...r.kernel.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] i2c/designware: enable i2c controller to suspend/resume
 asynchronously

Hi,

Any comments are welcome.


Thanks,
Zhonghui



On 2015/8/18 0:36, Fu, Zhonghui wrote:
> Enable i2c controller to suspend/resume asynchronously. This can improve
> system suspend/resume speed.
>
> Signed-off-by: Zhonghui Fu <zhonghui.fu@...ux.intel.com>
> ---
>  drivers/i2c/busses/i2c-designware-platdrv.c |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
> index 3dd2de3..fec0fce 100644
> --- a/drivers/i2c/busses/i2c-designware-platdrv.c
> +++ b/drivers/i2c/busses/i2c-designware-platdrv.c
> @@ -245,6 +245,7 @@ static int dw_i2c_probe(struct platform_device *pdev)
>  
>  	adap = &dev->adapter;
>  	i2c_set_adapdata(adap, dev);
> +	device_enable_async_suspend(&pdev->dev);
>  	adap->owner = THIS_MODULE;
>  	adap->class = I2C_CLASS_DEPRECATED;
>  	strlcpy(adap->name, "Synopsys DesignWare I2C adapter",
> -- 1.7.1
>

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