> -----Original Message-----
> From: Yuantian Tang <andy.tang@xxxxxxx>
> Sent: Thursday, October 10, 2019 3:34 AM
> To: shawnguo@xxxxxxxxxx
> Cc: Leo Li <leoyang.li@xxxxxxx>; robh+dt@xxxxxxxxxx;
> mark.rutland@xxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx;
> devicetree@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; Andy Tang
> <andy.tang@xxxxxxx>
> Subject: [PATCH v2] arm64: dts: ls1028a: fix a compatible issue
>
> The I2C multiplexer used on ls1028aqds is PCA9547, not PCA9847.
> If the wrong compatible was used, this chip will not be able to be probed
> correctly and hence fail to work.
>
> Signed-off-by: Yuantian Tang <andy.tang@xxxxxxx>
Acked-by: Li Yang <leoyang.li@xxxxxxx>
> ---
> v2:
> - refine the description
> arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts
> b/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts
> index 5e14e5a19744..f5da9e8b0d9d 100644
> --- a/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts
> +++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts
> @@ -107,7 +107,7 @@
> status = "okay";
>
> i2c-mux@77 {
> - compatible = "nxp,pca9847";
> + compatible = "nxp,pca9547";
> reg = <0x77>;
> #address-cells = <1>;
> #size-cells = <0>;
> --
> 2.17.1
