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    Subject[PATCH 01/03] gpio: rcar: Use lazy disable and mask on suspend
    From: Magnus Damm <damm@opensource.se>

    Set the ->irq_enable() and ->irq_disable() methods to NULL
    to enable lazy disable of interrupts. Also extend the code
    to set IRQCHIP_MASK_ON_SUSPEND which tells the core that
    only IRQs marked as wakeups need to stay enabled during
    Suspend-to-RAM.

    Tested on the Lager board with GPIO-keys and Suspend-to-RAM.

    Signed-off-by: Magnus Damm <damm@opensource.se>
    ---

    drivers/gpio/gpio-rcar.c | 3 +--
    1 file changed, 1 insertion(+), 2 deletions(-)

    --- 0001/drivers/gpio/gpio-rcar.c
    +++ work/drivers/gpio/gpio-rcar.c 2013-11-13 19:26:26.000000000 +0900
    @@ -368,10 +368,9 @@ static int gpio_rcar_probe(struct platfo
    irq_chip->name = name;
    irq_chip->irq_mask = gpio_rcar_irq_disable;
    irq_chip->irq_unmask = gpio_rcar_irq_enable;
    - irq_chip->irq_enable = gpio_rcar_irq_enable;
    - irq_chip->irq_disable = gpio_rcar_irq_disable;
    irq_chip->irq_set_type = gpio_rcar_irq_set_type;
    irq_chip->flags = IRQCHIP_SKIP_SET_WAKE | IRQCHIP_SET_TYPE_MASKED;
    + irq_chip->flags |= IRQCHIP_MASK_ON_SUSPEND;

    p->irq_domain = irq_domain_add_simple(pdev->dev.of_node,
    p->config.number_of_pins,

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