Re: [PATCH v2] docs: ACPI: enumeration: add PCI hierarchy representation

[Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>]

On Fri, Nov 20, 2020 at 12:11:25PM +0100, Flavio Suligoi wrote:
> For "fixed" PCI devices, such as chips directly soldered
> on the main board (ethernet, Wi-Fi, serial ports, etc.),
> it is possible to find an ACPI enumeration.
> 
> This allows to add useful properties to these devices.
> Just for an example: the property "gpio-line-names" can be
> added to the pins of a GPIO expander on the PCI bus.
> 
> In order to find the ACPI name of a PCI device, it's necessary
> to disassemble the BIOS ACPI tables (in particular the DSDT)
> and also to analyze the PCI bus topology of the board.
> 
> This patch, with a practical example, show how to do this.
> 
> Signed-off-by: Flavio Suligoi <f.suligoi@xxxxxxx>

Reviewed-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>