From c484fc957219e95e023efe74bfc6cc189303e6f4 Mon Sep 17 00:00:00 2001 From: Vignesh R Date: Wed, 12 Dec 2018 10:48:06 +0530 Subject: [PATCH] arm64: dts: ti: k3-am654: Populate power-domain property for UART nodes 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 Signed-off-by: Tero Kristo --- 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 0a0a8fc5df64..6446652850c6 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 @@ main_uart0: serial@2800000 { interrupts = ; clock-frequency = <48000000>; current-speed = <115200>; + power-domains = <&k3_pds 146>; }; main_uart1: serial@2810000 { @@ -57,7 +58,7 @@ main_uart1: serial@2810000 { reg-io-width = <4>; interrupts = ; clock-frequency = <48000000>; - current-speed = <115200>; + power-domains = <&k3_pds 147>; }; main_uart2: serial@2820000 { @@ -67,7 +68,7 @@ main_uart2: serial@2820000 { reg-io-width = <4>; interrupts = ; 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 1fd027748e1f..3b7a519960b9 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 @@ mcu_uart0: serial@40a00000 { interrupts = ; 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 @@ wkup_uart0: serial@42300000 { interrupts = ; clock-frequency = <48000000>; current-speed = <115200>; + power-domains = <&k3_pds 150>; }; wkup_i2c0: i2c@42120000 {