Not all platforms provide the same set of timers/interrupts, and Linux
only needs one (plus kvm/guest ones); some platforms are working around
this by using dummy fake interrupts. Implementing interrupt-names allows
the devicetree to specify an arbitrary set of available interrupts, so
the timer code can pick the right one.
This also adds the hyp-virt timer/interrupt, which was previously not
expressed in the fixed 4-interrupt form.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
- arm,armv8-timer
interrupts:
+ minItems: 1
+ maxItems: 5
items:
- description: secure timer irq
- description: non-secure timer irq
- description: virtual timer irq
- description: hypervisor timer irq
+ - description: hypervisor virtual timer irq
+
+ interrupt-names:
+ oneOf:
+ - minItems: 2
+ items:
+ - const: phys
+ - const: virt
+ - const: hyp-phys
+ - const: hyp-virt
+ - minItems: 3
+ items:
+ - const: sec-phys
+ - const: phys
+ - const: virt
+ - const: hyp-phys
+ - const: hyp-virt
clock-frequency:
description: The frequency of the main counter, in Hz. Should be present