openwrt_lede/target/linux/brcm2708/patches-4.4/0445-BCM270X-Add-the-DSI-and-DSI-panel-nodes-to-the-VC4-o.patch

From a5957ee5e1e3605c97c1282c21a0e799f81b49a1 Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Thu, 2 Jun 2016 15:09:35 -0700
Subject: [PATCH] BCM270X: Add the DSI and DSI panel nodes to the VC4 overlay.

Signed-off-by: Eric Anholt <eric@anholt.net>
---
 arch/arm/boot/dts/bcm2708_common.dtsi              | 24 ++++++++++++++++++++--
 arch/arm/boot/dts/overlays/vc4-kms-v3d-overlay.dts | 16 +++++++++++++++
 2 files changed, 38 insertions(+), 2 deletions(-)

--- a/arch/arm/boot/dts/bcm2708_common.dtsi
+++ b/arch/arm/boot/dts/bcm2708_common.dtsi
@@ -2,6 +2,7 @@
 #include <dt-bindings/clock/bcm2835-aux.h>
 #include "dt-bindings/power/raspberrypi-power.h"
 #include "dt-bindings/gpio/gpio.h"
+#include "dt-bindings/pinctrl/bcm2835.h"
 #include "skeleton.dtsi"
 
 / {
@@ -110,9 +111,10 @@
 			reg = <0x7e101000 0x2000>;
 
 			/* CPRMAN derives everything from the platform's
-			 * oscillator.
+			 * oscillator except for a few clocks that may
+			 * derive from something else derived from CPRMAN..
 			 */
-			clocks = <&clk_osc>;
+			clocks = <&clk_osc>, <&dsi1 0>, <&dsi1 1>, <&dsi1 2>;
 			status = "disabled";
 		};
 
@@ -282,6 +284,24 @@
 			status = "disabled";
 		};
 
+		dsi1: dsi@7e700000 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			#clock-cells = <1>;
+
+			compatible = "brcm,bcm2835-dsi1";
+			reg = <0x7e700000 0x8c>;
+			interrupts = <2 12>;
+
+			clocks = <&cprman BCM2835_PLLD_DSI1>,
+				 <&cprman BCM2835_CLOCK_DSI1E>,
+				 <&cprman BCM2835_CLOCK_DSI1P>;
+			clock-names = "phy", "escape", "pixel";
+			clock-output-names = "dsi1_byte", "dsi1_ddr2", "dsi1_ddr";
+			status = "disabled";
+			power-domains = <&power RPI_POWER_DOMAIN_DSI1>;
+		};
+
 		i2c1: i2c@7e804000 {
 			compatible = "brcm,bcm2708-i2c";
 			reg = <0x7e804000 0x1000>;
--- a/arch/arm/boot/dts/overlays/vc4-kms-v3d-overlay.dts
+++ b/arch/arm/boot/dts/overlays/vc4-kms-v3d-overlay.dts
@@ -126,6 +126,22 @@
 		};
 	};
 
+	fragment@16 {
+		target = <&dsi1>;
+		__overlay__  {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "okay";
+
+			brcm,panel = <&pitouchscreen>;
+
+			pitouchscreen: panel {
+				compatible = "raspberrypi,touchscreen";
+				reg = <0>;
+			};
+		};
+	};
+
 	__overrides__ {
 		cma-256 = <0>,"+0-1-2-3-4";
 		cma-192 = <0>,"-0+1-2-3-4";