[PATCH] irqchip: irqc: Add runtime PM support

[horms@verge.net.au (Simon Horman)]

On Thu, Apr 04, 2013 at 03:21:06PM +0900, Simon Horman wrote:
> This was tested using the SMSC LAN on the APE6EVM board.
> 
> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

Magnus, Morimoto-san, could you review this?

> ---
>  drivers/irqchip/irq-renesas-irqc.c |    8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/drivers/irqchip/irq-renesas-irqc.c b/drivers/irqchip/irq-renesas-irqc.c
> index 927bff3..649cd69 100644
> --- a/drivers/irqchip/irq-renesas-irqc.c
> +++ b/drivers/irqchip/irq-renesas-irqc.c
> @@ -19,6 +19,7 @@
>  
>  #include <linux/init.h>
>  #include <linux/platform_device.h>
> +#include <linux/pm_runtime.h>
>  #include <linux/spinlock.h>
>  #include <linux/interrupt.h>
>  #include <linux/ioport.h>
> @@ -181,6 +182,9 @@ static int irqc_probe(struct platform_device *pdev)
>  		goto err1;
>  	}
>  
> +	pm_runtime_enable(&pdev->dev);
> +	pm_runtime_get_sync(&pdev->dev);
> +
>  	/* allow any number of IRQs between 1 and IRQC_IRQ_MAX */
>  	for (k = 0; k < IRQC_IRQ_MAX; k++) {
>  		irq = platform_get_resource(pdev, IORESOURCE_IRQ, k);
> @@ -255,6 +259,8 @@ err3:
>  err2:
>  	iounmap(p->iomem);
>  err1:
> +	pm_runtime_put_sync(&pdev->dev);
> +	pm_runtime_disable(&pdev->dev);
>  	kfree(p);
>  err0:
>  	return ret;
> @@ -270,6 +276,8 @@ static int irqc_remove(struct platform_device *pdev)
>  
>  	irq_domain_remove(p->irq_domain);
>  	iounmap(p->iomem);
> +	pm_runtime_put_sync(&pdev->dev);
> +	pm_runtime_disable(&pdev->dev);
>  	kfree(p);
>  	return 0;
>  }
> -- 
> 1.7.10.4
>