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irqchip/gic-pm: Fix suspend handling

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If interrupts are enabled for a non-root GIC device that uses the
gic-pm driver, when system suspend occurs, the current interrupt
state is not saved and restored correctly and so interrupts do not
work again on resuming the system. Add a late suspend handler to
save and restore the state for these devices.

Suggested-by: Jonathan Hunter <jonathanh@nvidia.com>
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
This commit is contained in:
Sameer Pujar 2019-03-22 17:43:05 +05:30 committed by Marc Zyngier
parent fe00f8900c
commit 960164f714
1 changed files with 2 additions and 0 deletions
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2
drivers/irqchip/irq-gic-pm.c
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@ -142,6 +142,8 @@ static int gic_probe(struct platform_device *pdev)
static const struct dev_pm_ops gic_pm_ops = {
SET_RUNTIME_PM_OPS(gic_runtime_suspend,
gic_runtime_resume, NULL)
SET_LATE_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
pm_runtime_force_resume)
};
static const char * const gic400_clocks[] = {