On Fri, 2017-04-28 at 12:52 -0500, Rob Herring wrote:
> On Sun, Apr 23, 2017 at 04:17:33PM +0800, Ryder Lee wrote:
> > Add documentation for PCIe PHY available in MT7623 series SoCs.
> >
> > Signed-off-by: Ryder Lee <ryder.lee@xxxxxxxxxxxx>
> > ---
> > .../devicetree/bindings/phy/phy-mt7623-pcie.txt | 67 ++++++++++++++++++++++
> > 1 file changed, 67 insertions(+)
> > create mode 100644 Documentation/devicetree/bindings/phy/phy-mt7623-pcie.txt
> >
> > diff --git a/Documentation/devicetree/bindings/phy/phy-mt7623-pcie.txt b/Documentation/devicetree/bindings/phy/phy-mt7623-pcie.txt
> > new file mode 100644
> > index 0000000..27a9253
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/phy/phy-mt7623-pcie.txt
> > @@ -0,0 +1,67 @@
> > +Mediatek MT7623 PCIe PHY
> > +-----------------------
> > +
> > +Required properties:
> > + - compatible: Should contain "mediatek,mt7623-pcie-phy"
> > + - #phy-cells: must be 0
> > + - clocks: Must contain an entry in clock-names.
> > + See ../clocks/clock-bindings.txt for details.
> > + - clock-names: Must be "refclk"
> > + - resets: Must contain an entry in reset-names.
> > + See ../reset/reset.txt for details.
> > + - reset-names: Must be "phy"
> > +
> > +Optional properties:
> > + - phy-switch: The PHY on PCIe port2 is shared with USB u3phy2. If you
> > + want to enable port2, you should contain it.
>
> Need to state what the value is (i.e. a phandle to ?). Also needs a
> vendor prefix.
I will correct it.
> > +
> > +Example:
> > +
> > + pcie0_phy: pciephy@1a149000 {
>
> pcie-phy@...
Okay.
> > + compatible = "mediatek,mt7623-pcie-phy";
> > + reg = <0 0x1a149000 0 0x1000>;
> > + clocks = <&clk26m>;
> > + clock-names = "pciephya_ref";
> > + #phy-cells = <0>;
> > + status = "disabled";
>
> Don't show status in examples.
I will drop it all.
> > + };
> > +
> > + pcie1_phy: pciephy@1a14a000 {
> > + compatible = "mediatek,mt7623-pcie-phy";
> > + reg = <0 0x1a14a000 0 0x1000>;
> > + clocks = <&clk26m>;
> > + clock-names = "pciephya_ref";
> > + #phy-cells = <0>;
> > + status = "disabled";
> > + };
> > +
> > + pcie2_phy: pciephy@1a244000 {
> > + compatible = "mediatek,mt7623-pcie-phy";
> > + reg = <0 0x1a244000 0 0x1000>;
> > + clocks = <&clk26m>;
> > + clock-names = "pciephya_ref";
> > + #phy-cells = <0>;
> > +
> > + phy-switch = <&hifsys>;
> > + status = "disabled";
> > + };
> > +
> > +Specifying phy control of devices
> > +---------------------------------
> > +
> > +Device nodes should specify the configuration required in their "phys"
> > +property, containing a phandle to the phy node and phy-names.
> > +
> > +Example:
> > +
> > +#include <dt-bindings/phy/phy.h>
> > +
> > +pcie: pcie@1a140000 {
> > + ...
> > + pcie@1,0 {
> > + ...
> > + phys = <&pcie0_phy>;
> > + phy-names = "pcie-phy0";
> > + }
> > + ...
> > +};
Thanks for your reviews.
> > --
> > 1.9.1
> >
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