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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2020-10-30 19:59:18 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-11-07 13:33:46 +0300 |
| commit | b6e95788fde8c9bc9da729102085dd36a5a0cda6 (patch) | |
| tree | 2b61e1df7e5e67e8da079c9842f1c0ebe689a9c5 /Documentation | |
| parent | c3a877fea962d9d0fb1e3747334699978f566930 (diff) | |
| download | linux-b6e95788fde8c9bc9da729102085dd36a5a0cda6.tar.xz | |
irqdomain: Introduce irq_domain_create_legacy() API
Introduce irq_domain_create_legacy() API which is functional equivalent
to the existing irq_domain_add_legacy(), but takes a pointer to the struct
fwnode_handle as a parameter.
This is useful for non OF systems.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/20201030165919.86234-5-andriy.shevchenko@linux.intel.com
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/core-api/irq/irq-domain.rst | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/core-api/irq/irq-domain.rst b/Documentation/core-api/irq/irq-domain.rst index 096db12f32d5..a77c24c27f7b 100644 --- a/Documentation/core-api/irq/irq-domain.rst +++ b/Documentation/core-api/irq/irq-domain.rst @@ -147,6 +147,7 @@ Legacy irq_domain_add_simple() irq_domain_add_legacy() irq_domain_add_legacy_isa() + irq_domain_create_legacy() The Legacy mapping is a special case for drivers that already have a range of irq_descs allocated for the hwirqs. It is used when the @@ -185,6 +186,11 @@ that the driver using the simple domain call irq_create_mapping() before any irq_find_mapping() since the latter will actually work for the static IRQ assignment case. +irq_domain_add_legacy() and irq_domain_create_legacy() are functionally +equivalent, except for the first argument is different - the former +accepts an Open Firmware specific 'struct device_node', while the latter +accepts a more general abstraction 'struct fwnode_handle'. + Hierarchy IRQ domain -------------------- |