From a4d7117cd49715e3114d30c7d7b303dbd4f45f76 Mon Sep 17 00:00:00 2001
From: brian <brian@vamrs.com>
Date: Fri, 15 Mar 2019 19:41:30 +0800
Subject: [PATCH 39/97] arm64: overlays: add spi dev for rockpi4

---
 .../arm64/boot/dts/rockchip/overlays/Makefile |  3 ++-
 .../dts/rockchip/overlays/devspi-overlay.dts  | 25 +++++++++++++++++++
 2 files changed, 27 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm64/boot/dts/rockchip/overlays/devspi-overlay.dts

diff --git a/arch/arm64/boot/dts/rockchip/overlays/Makefile b/arch/arm64/boot/dts/rockchip/overlays/Makefile
index 0e06b7e1748f..0c691d2237af 100644
--- a/arch/arm64/boot/dts/rockchip/overlays/Makefile
+++ b/arch/arm64/boot/dts/rockchip/overlays/Makefile
@@ -4,7 +4,8 @@ dtbo-$(CONFIG_ARCH_ROCKCHIP) += \
 	console-on-uart4.dtbo \
 	console-disabled.dtbo \
 	two-color-led.dtbo \
-	at24c02.dtbo
+	at24c02.dtbo \
+	devspi.dtbo
 
 targets += dtbs dtbs_install
 targets += $(dtbo-y)
diff --git a/arch/arm64/boot/dts/rockchip/overlays/devspi-overlay.dts b/arch/arm64/boot/dts/rockchip/overlays/devspi-overlay.dts
new file mode 100644
index 000000000000..a3972b856660
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/overlays/devspi-overlay.dts
@@ -0,0 +1,25 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+	model = "ROCK PI 4B";
+	compatible = "rockchip,rockpi","rockchip,rk3399";
+
+	fragment@0 {
+		target = <&spi1>;
+
+		__overlay__ {
+			max-freq = <50000000>;
+			dmas = <&dmac_peri 10>, <&dmac_peri 11>;
+			dma-names = "tx","rx";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			devspi@0 {
+				status = "okay";
+				reg = <0>;
+				compatible ="rockchip,spidev";
+				spi-max-frequency = <50000000>;
+			};
+		};
+	};
+};
-- 
2.25.1