[PATCH 1/3] arm64: tegra: Add spidev nodes for SPI controllers
From: Vishwaroop A
Date: Tue Nov 26 2024 - 08:46:35 EST
Add spidev nodes to two existing SPI controllers on the
NVIDIA Tegra234 SoC. These additions enable user-space
SPI device support for testing and development purposes.
Specifies a maximum frequency of 81MHz for each spidev node.
The 81MHz maximum frequency is defined to ensure stable operation
while allowing for high-speed SPI communication. This frequency
can be adjusted based on specific hardware capabilities and
requirements.
Signed-off-by: Vishwaroop A <va@xxxxxxxxxx>
---
.../dts/nvidia/tegra234-p3737-0000+p3701.dtsi | 28 +++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701.dtsi b/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701.dtsi
index f6cad29355e6..17de3d0feb45 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701.dtsi
@@ -84,6 +84,34 @@
};
};
+ spi@3210000 {
+ status = "okay";
+ spi@0 {
+ compatible = "nvidia,tegra-spidev";
+ reg = <0x0>;
+ spi-max-frequency = <81000000>;
+ };
+ spi@1 {
+ compatible = "nvidia,tegra-spidev";
+ reg = <0x1>;
+ spi-max-frequency = <81000000>;
+ };
+ };
+
+ spi@3230000 {
+ status = "okay";
+ spi@0 {
+ compatible = "nvidia,tegra-spidev";
+ reg = <0x0>;
+ spi-max-frequency = <81000000>;
+ };
+ spi@1 {
+ compatible = "nvidia,tegra-spidev";
+ reg = <0x1>;
+ spi-max-frequency = <81000000>;
+ };
+ };
+
pwm@3280000 {
status = "okay";
};
--
2.17.1