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| author | Lokesh Vutla <lokeshvutla@ti.com> | 2019-04-30 15:42:22 +0530 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2019-05-01 10:41:38 +0100 |
| commit | 2bd1298ac17777525a41c8425521f569e412df14 (patch) | |
| tree | 2832b52714d607dcd4524d0d1b7dc5e2cf49a030 | |
| parent | 032a1ec549a79711078d26b6bcbba9d435822059 (diff) | |
| download | linux-2bd1298ac17777525a41c8425521f569e412df14.tar.gz linux-2bd1298ac17777525a41c8425521f569e412df14.tar.bz2 linux-2bd1298ac17777525a41c8425521f569e412df14.zip | |
genirq: Introduce irq_chip_{request,release}_resource_parent() apis
Introduce irq_chip_{request,release}_resource_parent() apis so
that these can be used in hierarchical irqchips.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
| -rw-r--r-- | include/linux/irq.h | 2 | ||||
| -rw-r--r-- | kernel/irq/chip.c | 27 |
2 files changed, 29 insertions, 0 deletions
diff --git a/include/linux/irq.h b/include/linux/irq.h index 7ae8de5ad0f2..fb301cf29148 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -625,6 +625,8 @@ extern int irq_chip_set_wake_parent(struct irq_data *data, unsigned int on); extern int irq_chip_set_vcpu_affinity_parent(struct irq_data *data, void *vcpu_info); extern int irq_chip_set_type_parent(struct irq_data *data, unsigned int type); +extern int irq_chip_request_resources_parent(struct irq_data *data); +extern void irq_chip_release_resources_parent(struct irq_data *data); #endif /* Handling of unhandled and spurious interrupts: */ diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c index 51128bea3846..29d6c7d070b4 100644 --- a/kernel/irq/chip.c +++ b/kernel/irq/chip.c @@ -1459,6 +1459,33 @@ int irq_chip_set_wake_parent(struct irq_data *data, unsigned int on) return -ENOSYS; } EXPORT_SYMBOL_GPL(irq_chip_set_wake_parent); + +/** + * irq_chip_request_resources_parent - Request resources on the parent interrupt + * @data: Pointer to interrupt specific data + */ +int irq_chip_request_resources_parent(struct irq_data *data) +{ + data = data->parent_data; + + if (data->chip->irq_request_resources) + return data->chip->irq_request_resources(data); + + return -ENOSYS; +} +EXPORT_SYMBOL_GPL(irq_chip_request_resources_parent); + +/** + * irq_chip_release_resources_parent - Release resources on the parent interrupt + * @data: Pointer to interrupt specific data + */ +void irq_chip_release_resources_parent(struct irq_data *data) +{ + data = data->parent_data; + if (data->chip->irq_release_resources) + data->chip->irq_release_resources(data); +} +EXPORT_SYMBOL_GPL(irq_chip_release_resources_parent); #endif /** |