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| author | Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | 2014-11-21 17:00:00 +0100 |
|---|---|---|
| committer | Jason Cooper <jason@lakedaemon.net> | 2014-11-30 16:39:12 +0000 |
| commit | 0f077eb5cfaf453ad7379963a721b8c04f7c62a2 (patch) | |
| tree | 850c36fc41868b79e82b00dbeabca6f99d950e9f /ipc | |
| parent | e92293a2a7edc68a37ee124b6665ca240fb2ce07 (diff) | |
| download | linux-0f077eb5cfaf453ad7379963a721b8c04f7c62a2.tar.bz2 | |
irqchip: armada-370-xp: Add suspend/resume support
This commit adds suspend/resume support to the irqchip driver used on
Armada XP platforms (amongst others). It does so by adding a set of
suspend/resume syscore_ops, that will respectively save and restore
the necessary registers to ensure interrupts continue to work after
resume.
It is worth mentioning that the affinity is lost during a
suspend/resume cycle, because when a secondary CPU is brought
off-line, all interrupts that are assigned to this CPU in terms of
affinity gets re-assigned to a still running CPU. Therefore, right
before entering suspend, all interrupts are assigned to the boot CPU.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: linux-kernel@vger.kernel.org
Link: https://lkml.kernel.org/r/1416585613-2113-4-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Diffstat (limited to 'ipc')
0 files changed, 0 insertions, 0 deletions