linux-kernel - [PATCH v2 02/13] ARM: dts: mmp2-olpc-xo-1-75: Delete #address-cells from ssp3

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Date:   Sat, 18 Jul 2020 22:50:08 +0200
From:   Lubomir Rintel <lkundrak@...sk>
To:     Arnd Bergmann <arnd@...db.de>, Olof Johansson <olof@...om.net>
Cc:     SoC Team <soc@...nel.org>, Rob Herring <robh+dt@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Lubomir Rintel <lkundrak@...sk>
Subject: [PATCH v2 02/13] ARM: dts: mmp2-olpc-xo-1-75: Delete #address-cells from ssp3

On the XO-1.75, this node represents a bus interface that operates in slave
mode and thus is only able to accommodate a single subnode; no address
cells are necessary.

The Documentation/devicetree/bindings/spi/spi-controller.yaml binding
prefers that we drop the property instead of setting it to zero.

This fixes a DT validation error:

  arch/arm/boot/dts/mmp2-olpc-xo-1-75.dt.yaml: spi@...37000:
      { ... } is valid under each of {'required': ['spi-slave']},
                                     {'required': ['#address-cells']}

We also need to drop #size-cells:

  arch/arm/boot/dts/mmp2-olpc-xo-1-75.dt.yaml: spi@...37000:
      '#address-cells' is a dependency of '#size-cells'

Signed-off-by: Lubomir Rintel <lkundrak@...sk>
---
 arch/arm/boot/dts/mmp2-olpc-xo-1-75.dts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/mmp2-olpc-xo-1-75.dts b/arch/arm/boot/dts/mmp2-olpc-xo-1-75.dts
index 02f4005a654b9..392f546f7915b 100644
--- a/arch/arm/boot/dts/mmp2-olpc-xo-1-75.dts
+++ b/arch/arm/boot/dts/mmp2-olpc-xo-1-75.dts
@@ -221,7 +221,8 @@ accelerometer@1d {
 };
 
 &ssp3 {
-	#address-cells = <0>;
+	/delete-property/ #address-cells;
+	/delete-property/ #size-cells;
 	spi-slave;
 	status = "okay";
 	ready-gpio = <&gpio 125 GPIO_ACTIVE_HIGH>;
-- 
2.26.2