diff mbox series

[RFC,V2,02/11] dts: arm64: mt8183: Add ISP Pass 1 shared memory node

Message ID 20190510015755.51495-3-jungo.lin@mediatek.com (mailing list archive)
State RFC
Headers show
Series [v1] media: media_device_enum_links32: fix missing reserved field copy | expand

Commit Message

Jungo Lin May 10, 2019, 1:57 a.m. UTC 
This patch adds a shared memory region used on mt8183 for
exchanging tuning data between co-processor and the
Pass 1 unit of the camera ISP system.

Signed-off-by: Jungo Lin <jungo.lin@mediatek.com>
---
 arch/arm64/boot/dts/mediatek/mt8183.dtsi | 13 +++++++++++++
 1 file changed, 13 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
index 75c4881bbe5e..d5d83a05f8a1 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
@@ -133,6 +133,19 @@ 
 		clock-output-names = "clk26m";
 	};
 
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+		cam_mem_reserved: cam_mem_region {
+			compatible = "mediatek,reserve-memory-cam-smem";
+			no-map;
+			size = <0 0x01400000>; /* 20 MB share mem size */
+			alignment = <0 0x1000>;
+			alloc-ranges = <0 0x40000000 0 0x10000000>;
+		};
+	};
+
 	timer {
 		compatible = "arm,armv8-timer";
 		interrupt-parent = <&gic>;