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authorJon Hunter <jonathanh@nvidia.com>2016-06-07 16:12:29 +0100
committerMarc Zyngier <marc.zyngier@arm.com>2016-06-13 11:53:51 +0100
commitbe45beb2df6909d42a6b3b0052601b3eef878fc0 (patch)
treeec2e157704e95b7d78cffc5be6026b6f7f022a7d /kernel/irq/internals.h
parent1e2a7d78499ec8859d2b469051b7b80bad3b08aa (diff)
downloadlinux-be45beb2df6909d42a6b3b0052601b3eef878fc0.tar.bz2
genirq: Add runtime power management support for IRQ chips
Some IRQ chips may be located in a power domain outside of the CPU subsystem and hence will require device specific runtime power management. In order to support such IRQ chips, add a pointer for a device structure to the irq_chip structure, and if this pointer is populated by the IRQ chip driver and CONFIG_PM is selected in the kernel configuration, then the pm_runtime_get/put APIs for this chip will be called when an IRQ is requested/freed, respectively. Reviewed-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'kernel/irq/internals.h')
-rw-r--r--kernel/irq/internals.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/irq/internals.h b/kernel/irq/internals.h
index 09be2c903c6d..d5edcdc9382a 100644
--- a/kernel/irq/internals.h
+++ b/kernel/irq/internals.h
@@ -7,6 +7,7 @@
*/
#include <linux/irqdesc.h>
#include <linux/kernel_stat.h>
+#include <linux/pm_runtime.h>
#ifdef CONFIG_SPARSE_IRQ
# define IRQ_BITMAP_BITS (NR_IRQS + 8196)