diff mbox series

[v4,1/4] dt-bindings: timer: sifive,clint: add legacy riscv compatible

Message ID 20220823183319.3314940-2-mail@conchuod.ie (mailing list archive)
State Accepted
Commit 826249942679a110353e71a1d92764fcf43e7cf7
Delegated to: Palmer Dabbelt
Headers show
Series Fix dt-validate issues on qemu dtbdumps due to dt-bindings | expand

Commit Message

Conor Dooley Aug. 23, 2022, 6:33 p.m. UTC 
From: Conor Dooley <conor.dooley@microchip.com>

While "real" hardware might not use the compatible string "riscv,clint0"
it is present in the driver & QEMU uses it for automatically generated
virt machine dtbs. To avoid dt-validate problems with QEMU produced
dtbs, such as the following, add it to the binding.

riscv-virt.dtb: clint@2000000: compatible:0: 'sifive,clint0' is not one of ['sifive,fu540-c000-clint', 'starfive,jh7100-clint', 'canaan,k210-clint']

Reported-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/linux-riscv/20220803170552.GA2250266-robh@kernel.org/
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
---
 .../bindings/timer/sifive,clint.yaml           | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

Comments

Heiko Stübner Aug. 24, 2022, 6:02 p.m. UTC | #1 
Am Dienstag, 23. August 2022, 20:33:17 CEST schrieb Conor Dooley:
> From: Conor Dooley <conor.dooley@microchip.com>
> 
> While "real" hardware might not use the compatible string "riscv,clint0"
> it is present in the driver & QEMU uses it for automatically generated
> virt machine dtbs. To avoid dt-validate problems with QEMU produced
> dtbs, such as the following, add it to the binding.
> 
> riscv-virt.dtb: clint@2000000: compatible:0: 'sifive,clint0' is not one of ['sifive,fu540-c000-clint', 'starfive,jh7100-clint', 'canaan,k210-clint']
> 
> Reported-by: Rob Herring <robh@kernel.org>
> Link: https://lore.kernel.org/linux-riscv/20220803170552.GA2250266-robh@kernel.org/
> Reviewed-by: Rob Herring <robh@kernel.org>
> Signed-off-by: Conor Dooley <conor.dooley@microchip.com>

Reviewed-by: Heiko Stuebner <heiko@sntech.de>
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/timer/sifive,clint.yaml b/Documentation/devicetree/bindings/timer/sifive,clint.yaml
index e64f46339079..bbad24165837 100644
--- a/Documentation/devicetree/bindings/timer/sifive,clint.yaml
+++ b/Documentation/devicetree/bindings/timer/sifive,clint.yaml
@@ -22,12 +22,18 @@  description:
 
 properties:
   compatible:
-    items:
-      - enum:
-          - sifive,fu540-c000-clint
-          - starfive,jh7100-clint
-          - canaan,k210-clint
-      - const: sifive,clint0
+    oneOf:
+      - items:
+          - enum:
+              - sifive,fu540-c000-clint
+              - starfive,jh7100-clint
+              - canaan,k210-clint
+          - const: sifive,clint0
+      - items:
+          - const: sifive,clint0
+          - const: riscv,clint0
+        deprecated: true
+        description: For the QEMU virt machine only
 
     description:
       Should be "<vendor>,<chip>-clint" and "sifive,clint<version>".