On Wed, 2016-05-04 at 14:20 +0300, Andy Shevchenko wrote: > > To move away from a valid/standard PCI probe routine into a new > > special > > LPSS/PCI shim (which the hardware doesn't actually mandate) I do > > think > > you should to setup the dependency CONFIG_8250_PCI => > > CONFIG_8250_LPSS. > > No, this is what we try avoiding Fine. Could you then select CONFIG_SERIAL_8250_LPSS when CONFIG_X86_INTEL_QUARK is true - since it will be a dependency. > If user selects CONFIG_SERIAL_8250_PCI, the CONFIG_SERIAL_8250_LPSS > will > be selected as well since it has same dependencies. I still think the change is not an obvious one i.e. LPSS (as an ACPI enumeration concept) is not a requirement to enumerate on Quark X1000. So I understand why you want to separate out the code from 8250_pci - however I think the *minimum* here should be a descriptive comment in kconfig listing which PCI-enumerated SoCs now require the 8250_LPSS work-around if just selecting 8250_LPSS isn't possible. So how about listing out those SoCs - something like "Selecting this option will enable handling of the extra features present on the UART found on Intel Braswell SoC and various other Intel platforms." => "Selecting this option will enable handling of the extra features present on the UART found on - Intel Braswell SoC - Intel Quark x1000 SoC - etc " If you make those changes - please add. Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@xxxxxxxxxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html