linux-kernel - [PATCH] arm64: dts: allwinner: sun50i-a64: Add missing address/size-cells

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Message-Id: <20200420103113.577969-1-megous@megous.com>
Date:   Mon, 20 Apr 2020 12:31:13 +0200
From:   Ondrej Jirman <megous@...ous.com>
To:     linux-sunxi@...glegroups.com
Cc:     Ondrej Jirman <megous@...ous.com>,
        Rob Herring <robh+dt@...nel.org>,
        Maxime Ripard <mripard@...nel.org>,
        Chen-Yu Tsai <wens@...e.org>,
        devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
        DEVICE TREE BINDINGS),
        linux-arm-kernel@...ts.infradead.org (moderated list:ARM/Allwinner
        sunXi SoC support), linux-kernel@...r.kernel.org (open list)
Subject: [PATCH] arm64: dts: allwinner: sun50i-a64: Add missing address/size-cells

The binding specifies #address-cells and #size-cells should be present.
Without them present, dtc issues a warning because default for
#address-cells seems to be <2>:

arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi:1108.4-52:
  Warning (dma_ranges_format):
    /soc/dram-controller@...2000:dma-ranges:
    "dma-ranges" property has invalid length (12 bytes)
    (parent #address-cells == 1, child #address-cells == 2,
    #size-cells == 1)

mbus #address-cells should be 1.

Signed-off-by: Ondrej Jirman <megous@...ous.com>
---
 arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
index cca4261089aa..61698094f450 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
@@ -1105,6 +1105,8 @@ mbus: dram-controller@...2000 {
 			compatible = "allwinner,sun50i-a64-mbus";
 			reg = <0x01c62000 0x1000>;
 			clocks = <&ccu 112>;
+			#address-cells = <1>;
+			#size-cells = <1>;
 			dma-ranges = <0x00000000 0x40000000 0xc0000000>;
 			#interconnect-cells = <1>;
 		};
-- 
2.26.1