linux-kernel - [PATCH] ARM: dts: sunxi: h3/h5: add r

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Message-Id: <20220112173327.26317-1-mans@mansr.com>
Date:   Wed, 12 Jan 2022 17:33:27 +0000
From:   Mans Rullgard <mans@...sr.com>
To:     Maxime Ripard <mripard@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...l.net>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH] ARM: dts: sunxi: h3/h5: add r_uart node

There is an additional UART in the PL I/O block.
Add a node and pinmux for it.

Signed-off-by: Mans Rullgard <mans@...sr.com>
---
The "documentation" doesn't mention any DMA channels for this UART.
If it nonetheless does have DMA capability and someone knows the channel
assignments, feel free to amend.
---
 arch/arm/boot/dts/sunxi-h3-h5.dtsi | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm/boot/dts/sunxi-h3-h5.dtsi b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
index 22d533d18992..55ffba5a4e9f 100644
--- a/arch/arm/boot/dts/sunxi-h3-h5.dtsi
+++ b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
@@ -884,6 +884,19 @@ r_i2c: i2c@...2400 {
 			#size-cells = <0>;
 		};
 
+		r_uart: serial@...2800 {
+			compatible = "snps,dw-apb-uart";
+			reg = <0x01f02800 0x400>;
+			interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>;
+			reg-shift = <2>;
+			reg-io-width = <4>;
+			clocks = <&r_ccu CLK_APB0_UART>;
+			resets = <&r_ccu RST_APB0_UART>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&r_uart_pins>;
+			status = "disabled";
+		};
+
 		r_pio: pinctrl@...2c00 {
 			compatible = "allwinner,sun8i-h3-r-pinctrl";
 			reg = <0x01f02c00 0x400>;
@@ -909,6 +922,11 @@ r_pwm_pin: r-pwm-pin {
 				pins = "PL10";
 				function = "s_pwm";
 			};
+
+			r_uart_pins: r-uart-pins {
+				pins = "PL2", "PL3";
+				function = "s_uart";
+			};
 		};
 
 		r_pwm: pwm@...3800 {
-- 
2.34.1