irqchip: renesas-intc-irqpin: Add minimal runtime PM support
authorGeert Uytterhoeven <geert+renesas@glider.be>
Fri, 12 Sep 2014 13:15:18 +0000 (15:15 +0200)
committerJason Cooper <jason@lakedaemon.net>
Sun, 14 Sep 2014 06:47:40 +0000 (06:47 +0000)
commit705bc96c2c15313c0677607f6e81800f4d2b4534
treee87fd69085507172290b8d0f41a7582c8cce9252
parent36845f1b54edc3237626d48270bbf3bc26d45f4f
irqchip: renesas-intc-irqpin: Add minimal runtime PM support

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.

To prevent the clock from being disabled while the module is needed for
wake-up, implement irq_chip.irq_set_wake(), which increments/decrements
the clock's enable_count when needed.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lkml.kernel.org/r/1410527720-18061-3-git-send-email-geert+renesas@glider.be
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
drivers/irqchip/irq-renesas-intc-irqpin.c