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[v2,05/25] dt-bindings: timer: arm, arch_timer: Add interrupt-names support

Message ID 20210215121713.57687-6-marcan@marcan.st (mailing list archive)
State New, archived
Headers show
Series Apple M1 SoC platform bring-up | expand

Commit Message

Hector Martin Feb. 15, 2021, 12:16 p.m. UTC 
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.

Signed-off-by: Hector Martin <marcan@marcan.st>
---
 .../devicetree/bindings/timer/arm,arch_timer.yaml  | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/timer/arm,arch_timer.yaml b/Documentation/devicetree/bindings/timer/arm,arch_timer.yaml
index 2c75105c1398..ebe9b0bebe41 100644
--- a/Documentation/devicetree/bindings/timer/arm,arch_timer.yaml
+++ b/Documentation/devicetree/bindings/timer/arm,arch_timer.yaml
@@ -34,11 +34,25 @@  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:
+    minItems: 1
+    maxItems: 5
+    items:
+      enum:
+        - phys-secure
+        - phys
+        - virt
+        - hyp-phys
+        - hyp-virt
 
   clock-frequency:
     description: The frequency of the main counter, in Hz. Should be present