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The per-device PM QoS locking requires a spinlock to be used. The reasons are: - an alignement with the PM QoS core code, which is used by the per-device PM QoS code for the constraints lists management. The PM QoS core code uses spinlocks to protect the constraints lists, - some drivers need to use the per-device PM QoS functionality from interrupt context or spinlock protected context. An example of such a driver is the OMAP HSI (high-speed synchronous serial interface) driver which needs to control the IP block idle state depending on the FIFO empty state, from interrupt context. Reported-by: Djamil Elaidi <d-elaidi@ti.com> Signed-off-by: Jean Pihet <j-pihet@ti.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> |
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| .. | ||
| clock_ops.c | ||
| common.c | ||
| domain_governor.c | ||
| domain.c | ||
| generic_ops.c | ||
| main.c | ||
| Makefile | ||
| opp.c | ||
| power.h | ||
| qos.c | ||
| runtime.c | ||
| sysfs.c | ||
| trace.c | ||
| wakeup.c | ||