> > diff --git a/arch/arm/boot/dts/sunplus-sp7021-achip.dtsi b/arch/arm/boot/dts/sunplus-sp7021-achip.dtsi > > new file mode 100644 > > index 000000000..1560c95d9 > > --- /dev/null > > +++ b/arch/arm/boot/dts/sunplus-sp7021-achip.dtsi > > @@ -0,0 +1,85 @@ > > +// SPDX-License-Identifier: GPL-2.0 > > +/* > > + * Device Tree Source for Sunplus SP7021 > > + * > > + * Copyright (C) 2021 Sunplus Technology Co. > > + */ > > + > > +#include "sunplus-sp7021.dtsi" > > + > > +/ { > > + compatible = "sunplus,sp7021-achip"; > > This does not match your bindings. > > > +++ b/arch/arm/boot/dts/sunplus-sp7021-demo-v3.dts > > @@ -0,0 +1,27 @@ > > +// SPDX-License-Identifier: GPL-2.0 > > +/* > > + * Device Tree Source for Sunplus SP7021 Demo V3 SBC board > > + * > > + * Copyright (C) Sunplus Technology Co. > > + */ > > + > > +/dts-v1/; > > + > > +#include "sunplus-sp7021-achip.dtsi" > > + > > +/ { > > + compatible = "sunplus,sp7021-demo-v3"; > > This does not match your bindings. > > Please run make dtbs_check. I did passed the make dtbs_check. compatible string: "sunplus,sp7021", "sunplus,sp7021-achip", "sunplus,sp7021-demo-v3" all defined @ Documentation/devicetree/bindings/arm/sunplus,sp7021.yaml [1] [1] https://lore.kernel.org/lkml/6107a68008f2d71d2c7868d4d94cb66c5b5fc134.1652329411.git.qinjian@xxxxxxxxxxx/