[PATCH 4/4] i2c: omap: switch over to autosuspend API

[Felipe Balbi]

Hi,

On Mon, Aug 06, 2012 at 05:18:57PM +0300, Felipe Balbi wrote:
> this helps us reduce unnecessary pm transitions
> in case we have another i2c message been started
> soon.
> 
> Signed-off-by: Felipe Balbi <balbi at ti.com>
> ---
>  drivers/i2c/busses/i2c-omap.c | 8 ++++++--
>  1 file changed, 6 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
> index 60928f2..22efaba 100644
> --- a/drivers/i2c/busses/i2c-omap.c
> +++ b/drivers/i2c/busses/i2c-omap.c
> @@ -645,7 +645,8 @@ omap_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], int num)
>  
>  	omap_i2c_wait_for_bb(dev);
>  out:
> -	pm_runtime_put(dev->dev);
> +	pm_runtime_mark_last_busy(dev->dev);
> +	pm_runtime_put_autosuspend(dev->dev);
>  	return r;
>  }
>  
> @@ -1113,6 +1114,9 @@ omap_i2c_probe(struct platform_device *pdev)
>  		dev->regs = (u8 *)reg_map_ip_v1;
>  
>  	pm_runtime_enable(dev->dev);
> +	pm_runtime_set_autosuspend_delay(dev->dev, 1000);
> +	pm_runtime_use_autosuspend(dev->dev);
> +
>  	r = pm_runtime_get_sync(dev->dev);
>  	if (IS_ERR_VALUE(r))
>  		goto err_free_mem;
> @@ -1189,7 +1193,7 @@ omap_i2c_probe(struct platform_device *pdev)
>  
>  	of_i2c_register_devices(adap);
>  
> -	pm_runtime_put(dev->dev);
> +	pm_runtime_put_autosuspend(dev->dev);

Probably... nice catch. Will send v2

-- 
balbi
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 836 bytes
Desc: Digital signature
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20120807/c737c871/attachment.sig>