From 6084110a0e9c4bff75970f3d68091ceff9e2c2c7 Mon Sep 17 00:00:00 2001
From: Eddie James <eajames@linux.ibm.com>
Date: Tue, 2 Apr 2019 02:42:29 +0000
Subject: [PATCH] ARM: dts: aspeed: Enable video engine on romulus and
 wtherspoon

Enable the video engine and add it's optional reserved memory region.
Use 32MB for the reserved memory since the video engine could need up to
two 1920x1200@32bpp source buffers.

Source buffers: 2 * 1920 * 1200 * 4 = 18432000 bytes
In addition, the V4L2 subsystem will allocate any number of compression
buffers, each at most 1/8th the size of the source buffer.

Signed-off-by: Eddie James <eajames@linux.ibm.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>
---
 arch/arm/boot/dts/aspeed-bmc-opp-romulus.dts     | 12 ++++++++++++
 arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts | 12 ++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-romulus.dts b/arch/arm/boot/dts/aspeed-bmc-opp-romulus.dts
index 8aba8b47d35d..9628ecb879cf 100644
--- a/arch/arm/boot/dts/aspeed-bmc-opp-romulus.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-opp-romulus.dts
@@ -42,6 +42,13 @@
 			compatible = "shared-dma-pool";
 			reusable;
 		};
+
+		video_engine_memory: jpegbuffer {
+			size = <0x02000000>;	/* 32M */
+			alignment = <0x01000000>;
+			compatible = "shared-dma-pool";
+			reusable;
+		};
 	};
 
 	leds {
@@ -305,4 +312,9 @@
 	status = "okay";
 };
 
+&video {
+	status = "okay";
+	memory-region = <&video_engine_memory>;
+};
+
 #include "ibm-power9-dual.dtsi"
diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts b/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts
index 85b9e4042864..31ea34e14c79 100644
--- a/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts
@@ -33,6 +33,13 @@
 			compatible = "shared-dma-pool";
 			reusable;
 		};
+
+		video_engine_memory: jpegbuffer {
+			size = <0x02000000>;	/* 32MM */
+			alignment = <0x01000000>;
+			compatible = "shared-dma-pool";
+			reusable;
+		};
 	};
 
 	gpio-keys {
@@ -641,4 +648,9 @@
 	status = "okay";
 };
 
+&video {
+	status = "okay";
+	memory-region = <&video_engine_memory>;
+};
+
 #include "ibm-power9-dual.dtsi"