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Subject[irqchip: irq/irqchip-fixes] dt-bindings: update riscv plic compatible string
The following commit has been merged into the irq/irqchip-fixes branch of irqchip:

Commit-ID: 321a8be37e1a93cefeae990107533142c8515933
Gitweb: https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms/321a8be37e1a93cefeae990107533142c8515933
Author: Guo Ren <guoren@linux.alibaba.com>
AuthorDate: Sun, 30 Jan 2022 21:56:33 +08:00
Committer: Marc Zyngier <maz@kernel.org>
CommitterDate: Wed, 02 Feb 2022 10:48:50

dt-bindings: update riscv plic compatible string

Add the compatible string "thead,c900-plic" to the riscv plic
bindings to support allwinner d1 SOC which contains c906 core.

Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Cc: Anup Patel <anup@brainfault.org>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Rob Herring <robh@kernel.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Samuel Holland <samuel@sholland.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220130135634.1213301-2-guoren@kernel.org
---
Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml | 21 +++++++++++++++------
1 file changed, 15 insertions(+), 6 deletions(-)

diff --git a/Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml b/Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml
index 0dfa6b2..27092c6 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml
@@ -35,6 +35,10 @@ description:
contains a specific memory layout, which is documented in chapter 8 of the
SiFive U5 Coreplex Series Manual <https://static.dev.sifive.com/U54-MC-RVCoreIP.pdf>.

+ The thead,c900-plic is different from sifive,plic-1.0.0 in opensbi, the
+ T-HEAD PLIC implementation requires setting a delegation bit to allow access
+ from S-mode. So add thead,c900-plic to distinguish them.
+
maintainers:
- Sagar Kadam <sagar.kadam@sifive.com>
- Paul Walmsley <paul.walmsley@sifive.com>
@@ -42,12 +46,17 @@ maintainers:

properties:
compatible:
- items:
- - enum:
- - sifive,fu540-c000-plic
- - starfive,jh7100-plic
- - canaan,k210-plic
- - const: sifive,plic-1.0.0
+ oneOf:
+ - items:
+ - enum:
+ - sifive,fu540-c000-plic
+ - starfive,jh7100-plic
+ - canaan,k210-plic
+ - const: sifive,plic-1.0.0
+ - items:
+ - enum:
+ - allwinner,sun20i-d1-plic
+ - const: thead,c900-plic

reg:
maxItems: 1
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