linux-kernel - [PATCH] ARM: bcm47094: add missing #cells for mdio-bus-mux

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Date:   Wed,  3 Jul 2019 15:22:45 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Hauke Mehrtens <hauke@...ke-m.de>,
        Rafał Miłecki <zajec5@...il.com>,
        bcm-kernel-feedback-list@...adcom.com,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Vivek Unune <npcomplete13@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Alexandre TORGUE <alexandre.torgue@...com>,
        Neil Armstrong <narmstrong@...libre.com>,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] ARM: bcm47094: add missing #cells for mdio-bus-mux

The mdio-bus-mux has no #address-cells/#size-cells property,
which causes a few dtc warnings:

arch/arm/boot/dts/bcm47094-linksys-panamera.dts:129.4-18: Warning (reg_format): /mdio-bus-mux/mdio@200:reg: property has invalid length (4 bytes) (#address-cells == 2, #size-cells == 1)
arch/arm/boot/dts/bcm47094-linksys-panamera.dtb: Warning (pci_device_bus_num): Failed prerequisite 'reg_format'
arch/arm/boot/dts/bcm47094-linksys-panamera.dtb: Warning (i2c_bus_reg): Failed prerequisite 'reg_format'
arch/arm/boot/dts/bcm47094-linksys-panamera.dtb: Warning (spi_bus_reg): Failed prerequisite 'reg_format'
arch/arm/boot/dts/bcm47094-linksys-panamera.dts:128.22-132.5: Warning (avoid_default_addr_size): /mdio-bus-mux/mdio@200: Relying on default #address-cells value
arch/arm/boot/dts/bcm47094-linksys-panamera.dts:128.22-132.5: Warning (avoid_default_addr_size): /mdio-bus-mux/mdio@200: Relying on default #size-cells value

Add the normal cell numbers.

Fixes: 2bebdfcdcd0f ("ARM: dts: BCM5301X: Add support for Linksys EA9500")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 arch/arm/boot/dts/bcm47094-linksys-panamera.dts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm/boot/dts/bcm47094-linksys-panamera.dts b/arch/arm/boot/dts/bcm47094-linksys-panamera.dts
index 18d0ae46e76c..0faae8950375 100644
--- a/arch/arm/boot/dts/bcm47094-linksys-panamera.dts
+++ b/arch/arm/boot/dts/bcm47094-linksys-panamera.dts
@@ -124,6 +124,9 @@
 	};
 
 	mdio-bus-mux {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
 		/* BIT(9) = 1 => external mdio */
 		mdio_ext: mdio@200 {
 			reg = <0x200>;
-- 
2.20.0