linux-kernel - [PATCH 2/2] riscv: dts: microchip: use an mpfs specific l2 compatible

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Date:   Thu, 25 Aug 2022 19:04:18 +0100
From:   Conor Dooley <mail@...chuod.ie>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Palmer Dabbelt <palmer@...belt.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Conor Dooley <conor.dooley@...rochip.com>,
        Daire McNamara <daire.mcnamara@...rochip.com>
Cc:     Sagar Kadam <sagar.kadam@...ive.com>,
        Heinrich Schuchardt <heinrich.schuchardt@...onical.com>,
        Atish Patra <atishp@...shpatra.org>,
        devicetree@...r.kernel.org, linux-riscv@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] riscv: dts: microchip: use an mpfs specific l2 compatible

From: Conor Dooley <conor.dooley@...rochip.com>

PolarFire SoC does not have the same l2 cache controller as the fu540,
featuring an extra interrupt. Appease the devicetree checker overlords
by adding a PolarFire SoC specific compatible to fix the below sort of
warnings:

mpfs-polarberry.dtb: cache-controller@...0000: interrupts: [[1], [3], [4], [2]] is too long

Fixes: 0fa6107eca41 ("RISC-V: Initial DTS for Microchip ICICLE board")
Fixes: 34fc9cc3aebe ("riscv: dts: microchip: correct L2 cache interrupts")
Signed-off-by: Conor Dooley <conor.dooley@...rochip.com>
---
 arch/riscv/boot/dts/microchip/mpfs.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/riscv/boot/dts/microchip/mpfs.dtsi b/arch/riscv/boot/dts/microchip/mpfs.dtsi
index 718d077b2549..3a00e4c765a5 100644
--- a/arch/riscv/boot/dts/microchip/mpfs.dtsi
+++ b/arch/riscv/boot/dts/microchip/mpfs.dtsi
@@ -185,7 +185,7 @@ soc {
 		ranges;
 
 		cctrllr: cache-controller@...0000 {
-			compatible = "sifive,fu540-c000-ccache", "cache";
+			compatible = "microchip,mpfs-ccache", "sifive,fu540-c000-ccache", "cache";
 			reg = <0x0 0x2010000 0x0 0x1000>;
 			cache-block-size = <64>;
 			cache-level = <2>;
-- 
2.37.1