genirq: Introduce helper functions to support stacked irq_chip
authorJiang Liu <jiang.liu@linux.intel.com>
Thu, 6 Nov 2014 14:20:16 +0000 (22:20 +0800)
committerThomas Gleixner <tglx@linutronix.de>
Sun, 23 Nov 2014 12:01:46 +0000 (13:01 +0100)
commit85f08c17de26f117be6ca7aa260d2ec02a2248ba
tree8a3d7091188c77e8fc6534b3db1394a08bba8128
parent0cc01abab6412f3a76256bb57ca58dcb94a6edc7
genirq: Introduce helper functions to support stacked irq_chip

Now we already support hierarchy irq_data, so introduce several helpers
to support stacked irq_chips.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Yingjoe Chen <yingjoe.chen@mediatek.com>
Cc: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
include/linux/irq.h
kernel/irq/chip.c