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Date: Wed, 12 Dec 2018 10:48:06 +0530
From: Vignesh R <vigneshr@...com>
To: Tero Kristo <t-kristo@...com>, Nishanth Menon <nm@...com>
CC: <linux-arm-kernel@...ts.infradead.org>,
<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
Vignesh R <vigneshr@...com>
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 <vigneshr@...com>
---
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@...0000 {
@@ -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@...0000 {
@@ -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@...000 {
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@...00000 {
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@...20000 {
--
2.19.2
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