Re: [PATCH v3 2/2] ACPI / scan: Fix enumeration for special UART devices

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On Wed, Oct 11, 2017 at 10:32:14AM +0200, Frédéric Danis wrote:
> UART devices is expected to be enumerated by SerDev subsystem.
> 
> During ACPI scan, serial devices behind SPI, I2C or UART buses are not
> enumerated, allowing them to be enumerated by their respective parents.
> 
> Rename *spi_i2c_slave* to *serial_bus_slave* as this will be used for serial
> devices on serial buses (SPI, I2C or UART).
> 
> On Macs an empty ResourceTemplate is returned for uart slaves.
> Instead the device properties "baud", "parity", "dataBits", "stopBits" are
> provided. Add a check for "baud" in acpi_is_serial_bus_slave().

Tested-by: Ronald Tschalär <ronald@xxxxxxxxxxxxx>
Tested-by: Peter Y. Chuang <peteryuchuang@xxxxxxxxx>

Ronald and Peter both report success for the above-mentioned Mac-specific
change on GitHub: https://github.com/l1k/linux/pull/1#issuecomment-336126330

Thanks,

Lukas
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