于 2018年4月17日 GMT+08:00 上午2:47:45, Rob Herring <robh@xxxxxxxxxx> 写到: >On Wed, Apr 11, 2018 at 10:16:37PM +0800, Icenowy Zheng wrote: >> On some Allwinner SoCs the EMAC clock register needed by dwmac-sun8i >is >> in another device's memory space. In this situation dwmac-sun8i can >use >> a regmap exported by the other device with only the EMAC clock >register. > >If this is a clock, then why not use the clock binding? EMAC clock register is only the datasheet name. It contains MII mode selection and delay chain configuration. > >> >> Document this situation in the dwmac-sun8i device tree binding >> documentation. >> >> Signed-off-by: Icenowy Zheng <icenowy@xxxxxxx> >> --- >> Documentation/devicetree/bindings/net/dwmac-sun8i.txt | 5 +++-- >> 1 file changed, 3 insertions(+), 2 deletions(-) >> >> diff --git a/Documentation/devicetree/bindings/net/dwmac-sun8i.txt >b/Documentation/devicetree/bindings/net/dwmac-sun8i.txt >> index 3d6d5fa0c4d5..0c5f63a80617 100644 >> --- a/Documentation/devicetree/bindings/net/dwmac-sun8i.txt >> +++ b/Documentation/devicetree/bindings/net/dwmac-sun8i.txt >> @@ -20,8 +20,9 @@ Required properties: >> - phy-handle: See ethernet.txt >> - #address-cells: shall be 1 >> - #size-cells: shall be 0 >> -- syscon: A phandle to the syscon of the SoC with one of the >following >> - compatible string: >> +- syscon: A phandle to a device which exports the EMAC clock >register as a >> + regmap or to the syscon of the SoC with one of the following >compatible >> + string: >> - allwinner,sun8i-h3-system-controller >> - allwinner,sun8i-v3s-system-controller >> - allwinner,sun50i-a64-system-controller >> -- >> 2.15.1 >> >> -- >> To unsubscribe from this list: send the line "unsubscribe devicetree" >in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html > >_______________________________________________ >linux-arm-kernel mailing list >linux-arm-kernel@xxxxxxxxxxxxxxxxxxx >http://lists.infradead.org/mailman/listinfo/linux-arm-kernel -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
