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| author | Hector Martin <marcan@marcan.st> | 2021-02-14 08:07:27 +0100 |
|---|---|---|
| committer | Hector Martin <marcan@marcan.st> | 2021-04-08 13:18:38 +0200 |
| commit | a6cf39fbe133857a7f26f0cab8198869caf44dee (patch) | |
| tree | 9f361aa506ddc02a5a1b07b63a294ea8a765c5d8 /Documentation/devicetree/bindings/timer | |
| parent | arm64: cputype: Add CPU implementor & types for the Apple M1 cores (diff) | |
| download | linux-a6cf39fbe133857a7f26f0cab8198869caf44dee.tar.xz linux-a6cf39fbe133857a7f26f0cab8198869caf44dee.zip | |
dt-bindings: timer: arm,arch_timer: Add interrupt-names support
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>
Diffstat (limited to 'Documentation/devicetree/bindings/timer')
| -rw-r--r-- | Documentation/devicetree/bindings/timer/arm,arch_timer.yaml | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/timer/arm,arch_timer.yaml b/Documentation/devicetree/bindings/timer/arm,arch_timer.yaml index 2c75105c1398..7f5e3af58255 100644 --- a/Documentation/devicetree/bindings/timer/arm,arch_timer.yaml +++ b/Documentation/devicetree/bindings/timer/arm,arch_timer.yaml @@ -34,11 +34,30 @@ properties: - 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 |