[PATCH v3 2/3] ARM: dts: imx6: extend PCIe interrupt list for MSI
arnd at arndb.de
Fri Feb 28 05:22:26 EST 2014
On Friday 28 February 2014 11:19:36 Lucas Stach wrote:
> Am Donnerstag, den 27.02.2014, 17:44 +0100 schrieb Arnd Bergmann:
> > On Thursday 27 February 2014 17:41:44 Lucas Stach wrote:
> > > num-lanes = <1>;
> > > - interrupts = <0 123 0x04>;
> > > + interrupt-names = "inta", "intb", "intc", "intd/msi";
> > > + interrupts = <0 123 0x04>, <0 122 0x04>, <0 121 0x04>, <0 120 0x04>;
> > > clocks = <&clks 189>, <&clks 187>, <&clks 206>, <&clks 144>;
> > >
> > The standard PCI interrupts should not be listed here, you need to
> > put them into the "interrupt-map" property so the of_irq_parse_and_map_pci()
> > function can translate them.
> So as INTA is already listed and implemented in the driver this way,
> this means the binding is totally bogus (taking into account that it
> didn't match the documented designware binding in more places).
> I wonder if we should just break the binding to sort things out, given
> that there are not that many users of imx-pcie yet.
That may be best, yes. If we have to provide backwards compatibility,
the driver can have a fallback for the case where no interrupt-map
property is present, but it should not try to handle multiple
interrupt lines that way, only the trivial case where you have a single
IntA line for all devices.
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