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author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2020-01-11 01:56:04 +0300 |
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committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2020-01-11 01:56:04 +0300 |
commit | 1bdd3e05a0a3b4a97ea88bc46fef8fb265c8b94c (patch) | |
tree | 2244894a9ea0c941a8f32e5f3d196b4ea0eae24b /kernel/irq/chip.c | |
parent | 643dd7416649bea2e8c61d8fdeeefb409a0ca5eb (diff) | |
parent | c79f46a282390e0f5b306007bf7b11a46d529538 (diff) | |
download | linux-1bdd3e05a0a3b4a97ea88bc46fef8fb265c8b94c.tar.xz |
Merge tag 'v5.5-rc5' into next
Sync up with mainline to get SPI "delay" API changes.
Diffstat (limited to 'kernel/irq/chip.c')
-rw-r--r-- | kernel/irq/chip.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c index b76703b2c0af..b3fa2d87d2f3 100644 --- a/kernel/irq/chip.c +++ b/kernel/irq/chip.c @@ -1298,6 +1298,50 @@ EXPORT_SYMBOL_GPL(handle_fasteoi_mask_irq); #endif /* CONFIG_IRQ_FASTEOI_HIERARCHY_HANDLERS */ /** + * irq_chip_set_parent_state - set the state of a parent interrupt. + * + * @data: Pointer to interrupt specific data + * @which: State to be restored (one of IRQCHIP_STATE_*) + * @val: Value corresponding to @which + * + * Conditional success, if the underlying irqchip does not implement it. + */ +int irq_chip_set_parent_state(struct irq_data *data, + enum irqchip_irq_state which, + bool val) +{ + data = data->parent_data; + + if (!data || !data->chip->irq_set_irqchip_state) + return 0; + + return data->chip->irq_set_irqchip_state(data, which, val); +} +EXPORT_SYMBOL_GPL(irq_chip_set_parent_state); + +/** + * irq_chip_get_parent_state - get the state of a parent interrupt. + * + * @data: Pointer to interrupt specific data + * @which: one of IRQCHIP_STATE_* the caller wants to know + * @state: a pointer to a boolean where the state is to be stored + * + * Conditional success, if the underlying irqchip does not implement it. + */ +int irq_chip_get_parent_state(struct irq_data *data, + enum irqchip_irq_state which, + bool *state) +{ + data = data->parent_data; + + if (!data || !data->chip->irq_get_irqchip_state) + return 0; + + return data->chip->irq_get_irqchip_state(data, which, state); +} +EXPORT_SYMBOL_GPL(irq_chip_get_parent_state); + +/** * irq_chip_enable_parent - Enable the parent interrupt (defaults to unmask if * NULL) * @data: Pointer to interrupt specific data |