Messages in this thread Patch in this message | | | Date | Mon, 16 Jul 2018 10:11:12 -0600 | From | Rob Herring <> | Subject | Re: [PATCH v2 1/2] dt-bindings: ufs: Add UFS platform driver for Cadence UFS |
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On Thu, Jul 12, 2018 at 11:58:04AM +0000, Janek Kotas wrote: > This patch adds a device tree platform > driver description for Cadence UFS Controller.
Bindings are not platform drivers...
> > Signed-off-by: Jan Kotas <jank@cadence.com> > --- > .../devicetree/bindings/ufs/cdns,ufshc.txt | 31 ++++++++++++++++++++++ > 1 file changed, 31 insertions(+) > create mode 100644 Documentation/devicetree/bindings/ufs/cdns,ufshc.txt > > diff --git a/Documentation/devicetree/bindings/ufs/cdns,ufshc.txt b/Documentation/devicetree/bindings/ufs/cdns,ufshc.txt > new file mode 100644 > index 0000000..cb6d62a > --- /dev/null > +++ b/Documentation/devicetree/bindings/ufs/cdns,ufshc.txt > @@ -0,0 +1,31 @@ > +* Cadence Universal Flash Storage (UFS) Controller > + > +UFS nodes are defined to describe on-chip UFS host controllers. > +Each UFS controller instance should have its own node. > + > +Required properties: > +- compatible : compatible list, contains the following controller: > + "cdns,ufshc" > + complemented with the JEDEC version: > + "jedec,ufs-2.0" > + > +- reg : address and length of the UFS register set > +- interrupts : one interrupt mapping > +- clocks : List of phandle and clock specifier pairs. > +- clock-names : List of clock input name strings sorted in the same > + order as the clocks property. "core" is mandatory. And phy?
> +- freq-table-hz : Array of <min max> operating frequencies stored in the same > + order as the clocks property. If this property is not > + defined or a value in the array is "0" then it is assumed > + that the frequency is set by the parent clock or a > + fixed rate clock source.
Don't define again here. Just refer to the common definition.
> + > +Example: > + ufs@fd030000 { > + compatible = "cdns,ufshc", "jedec,ufs-2.0"; > + reg = <0xfd030000 0x10000>; > + interrupts = <0 1 IRQ_TYPE_LEVEL_HIGH>; > + freq-table-hz = <0 0>, <0 0>; > + clocks = <&ufs_core_clk>, <&ufs_phy_clk>; > + clock-names = "core_clk", "phy_clk";
Doesn't match the doc.
> + }; > -- > 1.9.0 > > -- > To unsubscribe from this list: send the line "unsubscribe devicetree" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html
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