linux-kernel - [PATCH v2 3/3] LoongArch: dts: Update UART driver to Loongson-2K0500, Loongson-2K1000 and Loongson-2K2000.

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Message-ID: <20240804063834.70022-3-zhenghaowei@loongson.cn>
Date: Sun,  4 Aug 2024 14:38:34 +0800
From: zhenghaowei@...ngson.cn
To: zhenghaowei@...ngson.cn,
	gregkh@...uxfoundation.org,
	jirislaby@...nel.org,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	chenhuacai@...nel.org,
	kernel@...0n.name,
	p.zabel@...gutronix.de
Cc: linux-serial@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org,
	loongarch@...ts.linux.dev
Subject: [PATCH v2 3/3] LoongArch: dts: Update UART driver to Loongson-2K0500, Loongson-2K1000 and Loongson-2K2000.

From: Haowei Zheng <zhenghaowei@...ngson.cn>

Change to use the Loongson UART driver by default.

Signed-off-by: Haowei Zheng <zhenghaowei@...ngson.cn>
---
 arch/loongarch/boot/dts/loongson-2k0500.dtsi | 6 +++++-
 arch/loongarch/boot/dts/loongson-2k1000.dtsi | 6 +++++-
 arch/loongarch/boot/dts/loongson-2k2000.dtsi | 5 ++++-
 3 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/arch/loongarch/boot/dts/loongson-2k0500.dtsi b/arch/loongarch/boot/dts/loongson-2k0500.dtsi
index 3b38ff8853a7..aba6c0991b36 100644
--- a/arch/loongarch/boot/dts/loongson-2k0500.dtsi
+++ b/arch/loongarch/boot/dts/loongson-2k0500.dtsi
@@ -220,12 +220,16 @@ tsensor: thermal-sensor@...11500 {
 		};
 
 		uart0: serial@...40800 {
-			compatible = "ns16550a";
+			compatible = "loongson,ls7a-uart";
 			reg = <0x0 0x1ff40800 0x0 0x10>;
 			clock-frequency = <100000000>;
 			interrupt-parent = <&eiointc>;
 			interrupts = <2>;
 			no-loopback-test;
+			rts-invert;
+			dtr-invert;
+			cts-invert;
+			dsr-invert;
 			status = "disabled";
 		};
 
diff --git a/arch/loongarch/boot/dts/loongson-2k1000.dtsi b/arch/loongarch/boot/dts/loongson-2k1000.dtsi
index 92180140eb56..44c57d2e5dc2 100644
--- a/arch/loongarch/boot/dts/loongson-2k1000.dtsi
+++ b/arch/loongarch/boot/dts/loongson-2k1000.dtsi
@@ -297,12 +297,16 @@ dma-controller@...00c40 {
 		};
 
 		uart0: serial@...20000 {
-			compatible = "ns16550a";
+			compatible = "loongson,ls7a-uart";
 			reg = <0x0 0x1fe20000 0x0 0x10>;
 			clock-frequency = <125000000>;
 			interrupt-parent = <&liointc0>;
 			interrupts = <0x0 IRQ_TYPE_LEVEL_HIGH>;
 			no-loopback-test;
+			rts-invert;
+			dtr-invert;
+			cts-invert;
+			dsr-invert;
 			status = "disabled";
 		};
 
diff --git a/arch/loongarch/boot/dts/loongson-2k2000.dtsi b/arch/loongarch/boot/dts/loongson-2k2000.dtsi
index 0953c5707825..394494aaa242 100644
--- a/arch/loongarch/boot/dts/loongson-2k2000.dtsi
+++ b/arch/loongarch/boot/dts/loongson-2k2000.dtsi
@@ -174,12 +174,15 @@ rtc0: rtc@...d0100 {
 		};
 
 		uart0: serial@...001e0 {
-			compatible = "ns16550a";
+			compatible = "loongson,ls7a-uart";
 			reg = <0x0 0x1fe001e0 0x0 0x10>;
 			clock-frequency = <100000000>;
 			interrupt-parent = <&liointc>;
 			interrupts = <10 IRQ_TYPE_LEVEL_HIGH>;
 			no-loopback-test;
+			fractional-division;
+			rts-invert;
+			dtr-invert;
 			status = "disabled";
 		};
 
-- 
2.43.0