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authorSameer Pujar <spujar@nvidia.com>2019-03-22 13:13:05 +0100
committerMarc Zyngier <marc.zyngier@arm.com>2019-04-29 16:45:01 +0200
commit960164f7141e8a974035db9ab03d93f46656ea81 (patch)
tree1236ecd5355be46c57e052197867bd08bb77fa74 /drivers/irqchip/irq-gic-pm.c
parentirqchip/gic-pm: Update driver to use clk_bulk APIs (diff)
downloadlinux-960164f7141e8a974035db9ab03d93f46656ea81.tar.xz
linux-960164f7141e8a974035db9ab03d93f46656ea81.zip
irqchip/gic-pm: Fix suspend handling
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>
Diffstat (limited to '')
-rw-r--r--drivers/irqchip/irq-gic-pm.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/irqchip/irq-gic-pm.c b/drivers/irqchip/irq-gic-pm.c
index 069cf4c0f614..c4aac0977d8a 100644
--- a/drivers/irqchip/irq-gic-pm.c
+++ b/drivers/irqchip/irq-gic-pm.c
@@ -142,6 +142,8 @@ irq_dispose:
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[] = {