[PATCH 2/2] arm64: dts: lg: Add missing PL011 "uartclk"

From: Rob Herring (Arm)
Date: Mon Jun 09 2025 - 17:55:29 EST


The PL011 IP has 2 clock inputs for UART core/baud and APB bus. The
LG131x SoCs are missing the core "uartclk". In this case, the Linux
driver uses single clock for both clock inputs. Let's assume that's how
the h/w is wired and make the DT reflect that.

Signed-off-by: Rob Herring (Arm) <robh@xxxxxxxxxx>
---
arch/arm64/boot/dts/lg/lg131x.dtsi | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/boot/dts/lg/lg131x.dtsi b/arch/arm64/boot/dts/lg/lg131x.dtsi
index dc4229bd9ebb..4cb1e4510897 100644
--- a/arch/arm64/boot/dts/lg/lg131x.dtsi
+++ b/arch/arm64/boot/dts/lg/lg131x.dtsi
@@ -128,24 +128,24 @@ uart0: serial@fe000000 {
compatible = "arm,pl011", "arm,primecell";
reg = <0x0 0xfe000000 0x1000>;
interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&clk_bus>;
- clock-names = "apb_pclk";
+ clocks = <&clk_bus>, <&clk_bus>;
+ clock-names = "uartclk", "apb_pclk";
status = "disabled";
};
uart1: serial@fe100000 {
compatible = "arm,pl011", "arm,primecell";
reg = <0x0 0xfe100000 0x1000>;
interrupts = <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&clk_bus>;
- clock-names = "apb_pclk";
+ clocks = <&clk_bus>, <&clk_bus>;
+ clock-names = "uartclk", "apb_pclk";
status = "disabled";
};
uart2: serial@fe200000 {
compatible = "arm,pl011", "arm,primecell";
reg = <0x0 0xfe200000 0x1000>;
interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&clk_bus>;
- clock-names = "apb_pclk";
+ clocks = <&clk_bus>, <&clk_bus>;
+ clock-names = "uartclk", "apb_pclk";
status = "disabled";
};
spi0: spi@fe800000 {

--
2.47.2