Messages in this thread | | | Date | Tue, 17 Jun 2014 12:23:53 +0100 | From | Lee Jones <> | Subject | Re: [PATCH 1/4] phy: miphy365x: Add Device Tree bindings for the MiPHY365x |
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> > The MiPHY365x is a Generic PHY which can serve various SATA or PCIe > > devices. It has 2 ports which it can use for either; both SATA, both > > PCIe or one of each in any configuration. > > I've asked others who wrote multi-phy PHY providers to model each individual > PHY as sub-node of the PHY provider. So It's only fair I ask you the same to > do. So in this case the dt node should look something like: > > miphy365x_phy: miphy365x@fe382000 { > compatible = "st,miphy365x-phy"; > #phy-cells = <2>; > st,syscfg = <&syscfg_rear>; > channel@0 { > reg = <0xfe382000 0x100>, <0xfe394000 0x100>; > reg-names = "sata", "pcie"; > } > > channel@1{ > reg = <0xfe38a000 0x100>, <0xfe804000 0x100>; > reg-names = "sata", "pcie"; > } > > };
I'm interested to know why you've taken this approach, as it makes the code much more complex. The DT framework goes to the trouble of converting all addresses to to resources so drivers can easily pull them out using platform_get_resource() and friends. Pushing the reg properties down into a child node means that we have to now iterate over the sub-nodes and pull them out manually. This will lead to a pretty messy implementation IMHO.
Can you point me in the direction of previous implementations where you have stipulated the same set of constraints please?
-- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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