Hi Neil,
Thanks for your quickly reply.
On 2024/5/28 16:46, Neil Armstrong wrote:
[ EXTERNAL EMAIL ]
On 28/05/2024 10:39, Xianwei Zhao via B4 Relay wrote:
From: Xianwei Zhao <xianwei.zhao@xxxxxxxxxxx>
Add power domain controller node for Amlogic A4 SoC
Signed-off-by: Xianwei Zhao <xianwei.zhao@xxxxxxxxxxx>
---
arch/arm64/boot/dts/amlogic/amlogic-a4-common.dtsi | 4 ++++
arch/arm64/boot/dts/amlogic/amlogic-a4.dtsi | 5 +++++
2 files changed, 9 insertions(+)
diff --git a/arch/arm64/boot/dts/amlogic/amlogic-a4-common.dtsi
b/arch/arm64/boot/dts/amlogic/amlogic-a4-common.dtsi
index b6106ad4a072..eebde77ae5b4 100644
--- a/arch/arm64/boot/dts/amlogic/amlogic-a4-common.dtsi
+++ b/arch/arm64/boot/dts/amlogic/amlogic-a4-common.dtsi
@@ -27,6 +27,10 @@ xtal: xtal-clk {
#clock-cells = <0>;
};
+ sm: secure-monitor {
+ compatible = "amlogic,meson-gxbb-sm";
+ };
+
soc {
compatible = "simple-bus";
#address-cells = <2>;
diff --git a/arch/arm64/boot/dts/amlogic/amlogic-a4.dtsi
b/arch/arm64/boot/dts/amlogic/amlogic-a4.dtsi
index 73ca1d7eed81..917c05219b9c 100644
--- a/arch/arm64/boot/dts/amlogic/amlogic-a4.dtsi
+++ b/arch/arm64/boot/dts/amlogic/amlogic-a4.dtsi
@@ -37,4 +37,9 @@ cpu3: cpu@3 {
enable-method = "psci";
};
};
+
+ pwrc: power-controller {
+ compatible = "amlogic,a4-pwrc";
+ #power-domain-cells = <1>;
+ };
pwrc is supposed to be a child of secure-monitor.
Considered writing it like this when I wrote this.
Here are two approaches: one is to include secure-monitor in the comm
dtsi and fill power-controller by aliases in dtsi of each chip, while
the other is to directly include secure-monitor in the dtsi of each
chip. Which one do you suggest?
Neil
};
