From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shawn Guo Subject: [PATCH] ARM: dts: vf610-bk4: fix incorrect #address-cells for dspi3 Date: Sat, 12 Jan 2019 09:15:14 +0800 Message-ID: <20190112011514.8527-1-shawnguo@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: linux-arm-kernel@lists.infradead.org Cc: devicetree@vger.kernel.org, Rob Herring , Shawn Guo , Lukasz Majewski List-Id: devicetree@vger.kernel.org The dspi3 is used as slave controller on vf610-bk4, and the default '#address-cells = <1>;' setting in vfxxx.dtsi causes the following DTC warning. DTC arch/arm/boot/dts/vf610-bk4.dtb ../arch/arm/boot/dts/vfxxx.dtsi:550.24-563.6: Warning (spi_bus_bridge): /soc/aips-bus@40080000/spi@400ad000: incorrect #address-cells for SPI bus also defined at ../arch/arm/boot/dts/vf610-bk4.dts:107.8-119.3 arch/arm/boot/dts/vf610-bk4.dtb: Warning (spi_bus_reg): Failed prerequisite 'spi_bus_bridge' For spi device used as slave controller, '#address-cells' should be 0. Let's overwrite the property in vf610-bk4.dts to fix the warning. Reported-by: Stephen Rothwell Signed-off-by: Shawn Guo --- arch/arm/boot/dts/vf610-bk4.dts | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/boot/dts/vf610-bk4.dts b/arch/arm/boot/dts/vf610-bk4.dts index 689c8930dce3..b08d561d6748 100644 --- a/arch/arm/boot/dts/vf610-bk4.dts +++ b/arch/arm/boot/dts/vf610-bk4.dts @@ -110,11 +110,11 @@ bus-num = <3>; status = "okay"; spi-slave; + #address-cells = <0>; - slave@0 { + slave { compatible = "lwn,bk4"; spi-max-frequency = <30000000>; - reg = <0>; }; }; -- 2.18.0