linux-kernel - [PATCH v2] riscv: dts: thead: set dma-noncoherent to soc bus

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Message-Id: <20230912072232.2455-1-jszhang@kernel.org>
Date:   Tue, 12 Sep 2023 15:22:32 +0800
From:   Jisheng Zhang <jszhang@...nel.org>
To:     Guo Ren <guoren@...nel.org>, Fu Wei <wefu@...hat.com>,
        Conor Dooley <conor@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>
Cc:     linux-riscv@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Drew Fustini <dfustini@...libre.com>
Subject: [PATCH v2] riscv: dts: thead: set dma-noncoherent to soc bus

riscv select ARCH_DMA_DEFAULT_COHERENT by default, and th1520 isn't
dma coherent, so set dma-noncoherent to reflect this fact.

Signed-off-by: Jisheng Zhang <jszhang@...nel.org>
Tested-by: Drew Fustini <dfustini@...libre.com>
---

Since v1:
 - rebase on v6.6-rc1
 - collect Tested-by tag

 arch/riscv/boot/dts/thead/th1520.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/riscv/boot/dts/thead/th1520.dtsi b/arch/riscv/boot/dts/thead/th1520.dtsi
index ce708183b6f6..ff364709a6df 100644
--- a/arch/riscv/boot/dts/thead/th1520.dtsi
+++ b/arch/riscv/boot/dts/thead/th1520.dtsi
@@ -139,6 +139,7 @@ soc {
 		interrupt-parent = <&plic>;
 		#address-cells = <2>;
 		#size-cells = <2>;
+		dma-noncoherent;
 		ranges;
 
 		plic: interrupt-controller@...8000000 {
-- 
2.40.1