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irq_create_fwspec_mapping() can fail, returning 0 as parent_virq. In this
case vint_desc is going to be NULL in ti_sci_inta_alloc_irq() which will
cause NULL pointer dereference.
Also note that irq_create_fwspec_mapping() returns 'unsigned int' so the
check '<=' was wrong.
Use -EINVAL if irq_create_fwspec_mapping() returned with 0.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
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Add a msi domain that is child to the INTA domain. Clients
uses the INTA MSI bus layer to allocate irqs in this
MSI domain.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
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Texas Instruments' K3 generation SoCs has an IP Interrupt Aggregator
which is an interrupt controller that does the following:
- Converts events to interrupts that can be understood by
an interrupt router.
- Allows for multiplexing of events to interrupts.
Configuration of the interrupt aggregator registers can only be done by
a system co-processor and the driver needs to send a message to this
co processor over TISCI protocol. Add the required infrastructure to
allow the allocation and routing of these events.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
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Peter Ujfalusi
Lokesh Vutla