Hi, Shawn, > On Wed, Jan 23, 2019 at 01:21:35PM +0800, Alison Wang wrote: > > This patch adds Audio DT nodes for LS1028ARDB and LS1028AQDS boards. > > > > Signed-off-by: Alison Wang <alison.wang@xxxxxxx> > > --- > > arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts | 62 > ++++++++++++++++++++ > > arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts | 63 > +++++++++++++++++++++ > > arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi | 57 > +++++++++++++++++++ > > 3 files changed, 182 insertions(+), 0 deletions(-) > > > > diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts > b/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts > > index 14c79f4..139728e 100644 > > --- a/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts > > +++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts > > @@ -32,6 +32,49 @@ > > device_type = "memory"; > > reg = <0x0 0x80000000 0x1 0x00000000>; > > }; > > + > > + sys_mclk: clock-mclk { > > + compatible = "fixed-clock"; > > + #clock-cells = <0>; > > + clock-frequency = <25000000>; > > + }; > > + > > + reg_1p8v: regulator-1p8v { > > + compatible = "regulator-fixed"; > > + regulator-name = "1P8V"; > > + regulator-min-microvolt = <1800000>; > > + regulator-max-microvolt = <1800000>; > > + regulator-always-on; > > + }; > > + > > <snip> > > + > > + codec: sgtl5000@a { > > + #sound-dai-cells = <0>; > > + compatible = "fsl,sgtl5000"; > > + reg = <0xa>; > > + VDDA-supply = <®_1p8v>; > > + VDDIO-supply = <®_1p8v>; > > + clocks = <&sys_mclk>; > > + sclk-strength = <3>; > > What is this property? [Alison] It is a new property. I have submitted a patch for this new property https://lkml.org/lkml/2018/12/25/123. This patch is already merged in linux-next. For other items you mentioned, I will modify them in v2. Thanks a lot for your review. Best Regards, Alison Wang