Populate power-domain property for UART nodes, this is required for Linux to enable UART clocks via PM calls. Without this UART instances not initialized by bootloader (like main_uart1) fails to work in Linux. Also, drop current-speed property from main_uart1 and main_uart2 nodes as these UARTs are not initialized before Linux boots up and current speed is unknown. Signed-off-by: Vignesh R <vigneshr@xxxxxx> --- arch/arm64/boot/dts/ti/k3-am65-main.dtsi | 5 +++-- arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi | 1 + arch/arm64/boot/dts/ti/k3-am65-wakeup.dtsi | 1 + 3 files changed, 5 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi index 6c71e67b8988..272cf8fc8d30 100644 --- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi @@ -48,6 +48,7 @@ interrupts = <GIC_SPI 192 IRQ_TYPE_LEVEL_HIGH>; clock-frequency = <48000000>; current-speed = <115200>; + power-domains = <&k3_pds 146>; }; main_uart1: serial@2810000 { @@ -57,7 +58,7 @@ reg-io-width = <4>; interrupts = <GIC_SPI 193 IRQ_TYPE_LEVEL_HIGH>; clock-frequency = <48000000>; - current-speed = <115200>; + power-domains = <&k3_pds 147>; }; main_uart2: serial@2820000 { @@ -67,7 +68,7 @@ reg-io-width = <4>; interrupts = <GIC_SPI 194 IRQ_TYPE_LEVEL_HIGH>; clock-frequency = <48000000>; - current-speed = <115200>; + power-domains = <&k3_pds 148>; }; main_pmx0: pinmux@11c000 { diff --git a/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi index 1aeae52fb239..593f718e8fb5 100644 --- a/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi @@ -14,6 +14,7 @@ interrupts = <GIC_SPI 565 IRQ_TYPE_LEVEL_HIGH>; clock-frequency = <96000000>; current-speed = <115200>; + power-domains = <&k3_pds 149>; }; mcu_i2c0: i2c@40b00000 { diff --git a/arch/arm64/boot/dts/ti/k3-am65-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-am65-wakeup.dtsi index 9e8467ce7ad8..7cbdc0912ab7 100644 --- a/arch/arm64/boot/dts/ti/k3-am65-wakeup.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am65-wakeup.dtsi @@ -50,6 +50,7 @@ interrupts = <GIC_SPI 697 IRQ_TYPE_LEVEL_HIGH>; clock-frequency = <48000000>; current-speed = <115200>; + power-domains = <&k3_pds 150>; }; wkup_i2c0: i2c@42120000 { -- 2.19.2