diff mbox series

[RFC,V1,02/12] dts: arm64: mt8183: Add ISP Pass 1 shared memory node

Message ID 1553767007-11909-3-git-send-email-jungo.lin@mediatek.com (mailing list archive)
State RFC
Headers show
Series [RFC,V1,01/12] dt-bindings: mt8183: Add binding for ISP Pass 1 reserved memory | expand

Commit Message

Jungo Lin March 28, 2019, 9:56 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 75c4881..c73f7ff 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;
+		reserve-memory-cam_smem {
+			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>;