On Wed, Feb 13, 2019 at 06:12:33PM +0000, Frank Li wrote: > Added binding doc for imx8qxp ddr performance monitor > > Signed-off-by: Frank Li <Frank.Li@xxxxxxx> As a general thing, please put the DT binding earlier in the series than the code and/or DTs using it, as per: Documentation/devicetree/bindings/submitting-patches.txt > --- > Change from v2 to v3 > * ddr_pmu0 -> ddr-pmu > > .../devicetree/bindings/perf/fsl-imx-ddr.txt | 22 ++++++++++++++++++++++ > 1 file changed, 22 insertions(+) > create mode 100644 Documentation/devicetree/bindings/perf/fsl-imx-ddr.txt > > diff --git a/Documentation/devicetree/bindings/perf/fsl-imx-ddr.txt b/Documentation/devicetree/bindings/perf/fsl-imx-ddr.txt > new file mode 100644 > index 0000000..9d55182 > --- /dev/null > +++ b/Documentation/devicetree/bindings/perf/fsl-imx-ddr.txt > @@ -0,0 +1,22 @@ > +* Freescale(NXP) IMX8 DDR performance monitor > + > +Required properties: > + > +- compatible: (standard compatible string) should be one of: > + "fsl,imx8-ddr-pmu" > + "fsl,imx8m-ddr-pmu" Please remove the "(standard xxx)" bits, they're just noise. Otherwise, this generally looks OK. Are the DDR PMU registers part of the DDR controller register block? Thanks, Mark. > + > +- reg: (standard registers property) physical address and size > + > +- interrupts: (standard interrupt property) single interrupt > + generated by the control block > + > +Example: > + > + ddr-pmu@5c020000 { > + compatible = "fsl,imx8-ddr-pmu"; > + reg = <0x0 0x5c020000 0x0 0x10000>; > + interrupt-parent = <&gic>; > + interrupts = <GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>; > + }; > + > -- > 2.5.2 >