linux-kernel - Re: [PATCH] mfd: Convert aat2870 to dev_pm

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Date:	Thu, 29 Dec 2011 14:44:22 +0900
From:	Jin Park <jinyoungp@...dia.com>
To:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
CC:	Samuel Ortiz <sameo@...ux.intel.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mfd: Convert aat2870 to dev_pm_ops

Acked-by: Jin Park <jinyoungp@...dia.com>

On 2011-12-29 오전 2:40, Mark Brown wrote:
> The I2C suspend and resume functions have been deprecated since the driver
> was introduced.
>
> Signed-off-by: Mark Brown<broonie@...nsource.wolfsonmicro.com>
> ---
>   drivers/mfd/aat2870-core.c |   19 ++++++++++---------
>   1 files changed, 10 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/mfd/aat2870-core.c b/drivers/mfd/aat2870-core.c
> index e6da563..3aa36eb 100644
> --- a/drivers/mfd/aat2870-core.c
> +++ b/drivers/mfd/aat2870-core.c
> @@ -468,9 +468,10 @@ static int aat2870_i2c_remove(struct i2c_client *client)
>   	return 0;
>   }
>
> -#ifdef CONFIG_PM
> -static int aat2870_i2c_suspend(struct i2c_client *client, pm_message_t state)
> +#ifdef CONFIG_PM_SLEEP
> +static int aat2870_i2c_suspend(struct device *dev)
>   {
> +	struct i2c_client *client = to_i2c_client(dev);
>   	struct aat2870_data *aat2870 = i2c_get_clientdata(client);
>
>   	aat2870_disable(aat2870);
> @@ -478,8 +479,9 @@ static int aat2870_i2c_suspend(struct i2c_client *client, pm_message_t state)
>   	return 0;
>   }
>
> -static int aat2870_i2c_resume(struct i2c_client *client)
> +static int aat2870_i2c_resume(struct device *dev)
>   {
> +	struct i2c_client *client = to_i2c_client(dev);
>   	struct aat2870_data *aat2870 = i2c_get_clientdata(client);
>   	struct aat2870_register *reg = NULL;
>   	int i;
> @@ -495,10 +497,10 @@ static int aat2870_i2c_resume(struct i2c_client *client)
>
>   	return 0;
>   }
> -#else
> -#define aat2870_i2c_suspend	NULL
> -#define aat2870_i2c_resume	NULL
> -#endif /* CONFIG_PM */
> +#endif /* CONFIG_PM_SLEEP */
> +
> +static SIMPLE_DEV_PM_OPS(aat2870_pm_ops, aat2870_i2c_suspend,
> +			 aat2870_i2c_resume);
>
>   static const struct i2c_device_id aat2870_i2c_id_table[] = {
>   	{ "aat2870", 0 },
> @@ -510,11 +512,10 @@ static struct i2c_driver aat2870_i2c_driver = {
>   	.driver = {
>   		.name	= "aat2870",
>   		.owner	= THIS_MODULE,
> +		.pm	=&aat2870_pm_ops,
>   	},
>   	.probe		= aat2870_i2c_probe,
>   	.remove		= aat2870_i2c_remove,
> -	.suspend	= aat2870_i2c_suspend,
> -	.resume		= aat2870_i2c_resume,
>   	.id_table	= aat2870_i2c_id_table,
>   };
>
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