Am Freitag, den 28.02.2014, 21:03 +0100 schrieb Arnd Bergmann: > On Friday 28 February 2014, Lucas Stach wrote: > > +Required properties: > > +- compatible: "fsl,imx6q-pcie" > > +- reg: base addresse and length of the pcie controller > > +- interrupts: First entry must contain interrupt handle for controller > > + INTA output. > > I think this should be documented as "optional" and only for > backwards compatibility with old kernels. > > > +- clocks: Must contain an entry for each entry in clock-names. > > + See ../clocks/clock-bindings.txt for details. > > +- clock-names: Must include the following entries: > > + - "pcie_ref_125m" > > + - "sata_ref_100m" > > + - "lvds_gate" > > + - "pcie_axi" > > I don't understand why you have completely different clocks here > from the exynos documentation. The clock names should really be > the same. Also, why do you have a "sata_ref_100m" clock? > Is this just driving a device that happens to be on-board > for a specific machine? Same for the "lvds_gate". > Right, we should be able to reuse the clock names. Though I'm not really sure how the Samsung clocks maps to those used on i.MX, as the names are a bit generic. Maybe someone from Samsung could shed a bit of light on this. On i.MX6 the clock names (which I have to agree are pretty bad) map as follows: pcie_axi: host controller main register/bus access clock pcie_ref_125m: pcie phy reference clock sata_ref_100m: pcie bus 100MHz reference clock lvds_gate: bad abstraction. Decides if the reference clock is sourced internal (i.e. the 100MHz ref clock above) or from an SoC external source. We should really find a better way of representing this in the clock tree. Regards, Lucas -- Pengutronix e.K. | Lucas Stach | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-5076 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | -- 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
