linux-kernel - [PATCH 4/4] riscv: dts: sophgo: add reset phandle to all uart nodes

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Date:   Mon, 13 Nov 2023 08:55:03 +0800
From:   Jisheng Zhang <jszhang@...nel.org>
To:     Philipp Zabel <p.zabel@...gutronix.de>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Chao Wei <chao.wei@...hgo.com>,
        Chen Wang <unicorn_wang@...look.com>
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-riscv@...ts.infradead.org
Subject: [PATCH 4/4] riscv: dts: sophgo: add reset phandle to all uart nodes

Although, the resets are deasserted by default. Add them for
completeness.

Signed-off-by: Jisheng Zhang <jszhang@...nel.org>
---
 arch/riscv/boot/dts/sophgo/cv1800b.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/riscv/boot/dts/sophgo/cv1800b.dtsi b/arch/riscv/boot/dts/sophgo/cv1800b.dtsi
index 4032419486be..e04df04a91c0 100644
--- a/arch/riscv/boot/dts/sophgo/cv1800b.dtsi
+++ b/arch/riscv/boot/dts/sophgo/cv1800b.dtsi
@@ -4,6 +4,7 @@
  */
 
 #include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/reset/sophgo,cv1800b-reset.h>
 
 / {
 	compatible = "sophgo,cv1800b";
@@ -65,6 +66,7 @@ uart0: serial@...0000 {
 			reg = <0x04140000 0x100>;
 			interrupts = <44 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&osc>;
+			resets = <&rst RST_UART0>;
 			reg-shift = <2>;
 			reg-io-width = <4>;
 			status = "disabled";
@@ -75,6 +77,7 @@ uart1: serial@...0000 {
 			reg = <0x04150000 0x100>;
 			interrupts = <45 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&osc>;
+			resets = <&rst RST_UART1>;
 			reg-shift = <2>;
 			reg-io-width = <4>;
 			status = "disabled";
@@ -85,6 +88,7 @@ uart2: serial@...0000 {
 			reg = <0x04160000 0x100>;
 			interrupts = <46 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&osc>;
+			resets = <&rst RST_UART2>;
 			reg-shift = <2>;
 			reg-io-width = <4>;
 			status = "disabled";
@@ -95,6 +99,7 @@ uart3: serial@...0000 {
 			reg = <0x04170000 0x100>;
 			interrupts = <47 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&osc>;
+			resets = <&rst RST_UART3>;
 			reg-shift = <2>;
 			reg-io-width = <4>;
 			status = "disabled";
@@ -105,6 +110,7 @@ uart4: serial@...0000 {
 			reg = <0x041c0000 0x100>;
 			interrupts = <48 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&osc>;
+			resets = <&rst RST_UART4>;
 			reg-shift = <2>;
 			reg-io-width = <4>;
 			status = "disabled";
-- 
2.42.0