From: Jerry-ch Chen <jerry-ch.c...@mediatek.com>

This patch adds a shared memory region used on mt8183 for
exchanging meta data between co-processor and
Face Detection (FD) unit.

Signed-off-by: Jerry-ch Chen <jerry-ch.c...@mediatek.com>
---
 arch/arm64/boot/dts/mediatek/mt8183.dtsi | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi 
b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
index c3a516e63141..dc0b4cad5200 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
@@ -134,6 +134,16 @@
                clock-output-names = "clk26m";
        };
 
+       reserved-memory {
+               reserve-memory-fd_smem {
+                       compatible = "mediatek,reserve-memory-fd_smem";
+                       no-map;
+                       size = <0 0x00100000>;  /*1 MB share mem size */
+                       alignment = <0 0x1000>;
+                       alloc-ranges = <0 0x40000000 0 0x10000000>;
+               };
+       };
+
        timer {
                compatible = "arm,armv8-timer";
                interrupt-parent = <&gic>;
-- 
2.18.0

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