From 8614a5e9720633e0c4be70b35fce8faa4b2d485a Mon Sep 17 00:00:00 2001
From: Chen-Yu Tsai <wens@csie.org>
Date: Mon, 6 Jan 2020 16:42:37 +0800
Subject: [PATCH] ARM: dts: sun8i: r40: Add device node for CSI0

The CSI0 and CSI1 blocks are the same as found on the A20. However only
CSI0 is supported upstream right now.

Add a device node for CSI0 using the A20 compatible as a fallback, and
the standard pinctrl options. Also add the MBUS interconnect.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
 arch/arm/boot/dts/sun8i-r40.dtsi | 36 ++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/arch/arm/boot/dts/sun8i-r40.dtsi b/arch/arm/boot/dts/sun8i-r40.dtsi
index 7c940b20b81c..84d240c39f0f 100644
--- a/arch/arm/boot/dts/sun8i-r40.dtsi
+++ b/arch/arm/boot/dts/sun8i-r40.dtsi
@@ -181,6 +181,20 @@
 			interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;
 		};
 
+		csi0: csi@1c09000 {
+			compatible = "allwinner,sun8i-r40-csi0",
+				     "allwinner,sun7i-a20-csi0";
+			reg = <0x01c09000 0x1000>;
+			interrupts = <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&ccu CLK_BUS_CSI0>, <&ccu CLK_CSI_SCLK>,
+				 <&ccu CLK_DRAM_CSI0>;
+			clock-names = "bus", "isp", "ram";
+			resets = <&ccu RST_BUS_CSI0>;
+			interconnects = <&mbus 5>;
+			interconnect-names = "dma-mem";
+			status = "disabled";
+		};
+
 		mmc0: mmc@1c0f000 {
 			compatible = "allwinner,sun8i-r40-mmc",
 				     "allwinner,sun50i-a64-mmc";
@@ -356,6 +370,20 @@
 				function = "clk_out_a";
 			};
 
+			/omit-if-no-ref/
+			csi0_8bits_pins: csi0-8bits-pins {
+				pins = "PE0", "PE2", "PE3", "PE4", "PE5",
+				       "PE6", "PE7", "PE8", "PE9", "PE10",
+				       "PE11";
+				function = "csi0";
+			};
+
+			/omit-if-no-ref/
+			csi0_mclk_pin: csi0-mclk-pin {
+				pins = "PE1";
+				function = "csi0";
+			};
+
 			gmac_rgmii_pins: gmac-rgmii-pins {
 				pins = "PA0", "PA1", "PA2", "PA3",
 				       "PA4", "PA5", "PA6", "PA7",
@@ -625,6 +653,14 @@
 			};
 		};
 
+		mbus: dram-controller@1c62000 {
+			compatible = "allwinner,sun8i-r40-mbus";
+			reg = <0x01c62000 0x1000>;
+			clocks = <&ccu 155>;
+			dma-ranges = <0x00000000 0x40000000 0x80000000>;
+			#interconnect-cells = <1>;
+		};
+
 		tcon_top: tcon-top@1c70000 {
 			compatible = "allwinner,sun8i-r40-tcon-top";
 			reg = <0x01c70000 0x1000>;