On 16/06/2017 12:24, Rafael J. Wysocki wrote:
>> >
>> > It causes acpi_default_enumeration() to be called but it should be fine
>> > as we are dealing with platform device anyway.
>>
>> I do not quite understand how declaring such MFD cell above would make sure
>> that the LPC probe is called before the IPMI device is enumerated...
>
> In fact it may be that it is not sufficient in this case because the
> ACPI core might enumerate child devices before the LPC driver even gets
> a chance to probe so you would need to add also scan handler to the
> child devices and mark them already enumerated or something like that.
Or extend the special I2C/SPI handling to them.
For this, is it possible to just configure the ACPI table so we spoof
that the LPC slave (IPI0001), is an i2c/spi slave? Could we just add a
resource of type ACPI_RESOURCE_TYPE_SERIAL_BUS, and common serial bus
type i2c/spi to solve this?
This resource would/should need to be ignored for other purposes.
John
Thanks,
Rafael
