On Wed, Mar 18, 2015 at 07:55:56PM +0100, Geert Uytterhoeven wrote:
> This is just enough to let pm_clk_*() enable the functional clock, and
> manage it for suspend/resume, if present.
> Before, it was assumed enabled by the bootloader or reset state.
>
> Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Reviewed-by: Simon Horman <horms+renesas@xxxxxxxxxxxx>
> ---
> 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 2ce2edf8ec8ec182..718f01cd1aea19f6 100644
> --- a/drivers/irqchip/irq-renesas-irqc.c
> +++ b/drivers/irqchip/irq-renesas-irqc.c
> @@ -29,6 +29,7 @@
> #include <linux/slab.h>
> #include <linux/module.h>
> #include <linux/platform_data/irq-renesas-irqc.h>
> +#include <linux/pm_runtime.h>
>
> #define IRQC_IRQ_MAX 32 /* maximum 32 interrupts per driver instance */
>
> @@ -180,6 +181,9 @@ static int irqc_probe(struct platform_device *pdev)
> p->pdev = pdev;
> platform_set_drvdata(pdev, p);
>
> + pm_runtime_enable(&pdev->dev);
> + pm_runtime_get_sync(&pdev->dev);
> +
> /* get hold of manadatory IOMEM */
> io = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> if (!io) {
> @@ -260,6 +264,8 @@ err3:
> err2:
> iounmap(p->iomem);
> err1:
> + pm_runtime_put(&pdev->dev);
> + pm_runtime_disable(&pdev->dev);
> kfree(p);
> err0:
> return ret;
> @@ -275,6 +281,8 @@ static int irqc_remove(struct platform_device *pdev)
>
> irq_domain_remove(p->irq_domain);
> iounmap(p->iomem);
> + pm_runtime_put(&pdev->dev);
> + pm_runtime_disable(&pdev->dev);
> kfree(p);
> return 0;
> }
> --
> 1.9.1
>
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