On Thu, Oct 26, 2017 at 10:53 AM, AceLan Kao <acelan.kao@xxxxxxxxxxxxx> wrote:
> The Dell AIO machines released after 2017 come with a UART interface
> to communicate with the backlight scalar board. This driver creates
> a standard backlight interface and talks to the scalar board through
> UART.
>
> In DSDT this uart port will be defined as
> Name (_HID, "DELL0501")
> Name (_CID, EisaId ("PNP0501")
> The 8250 PNP driver will be loaded by default, and this driver uses
> "DELL0501" to confirm the uart port is a backlight interface and
> leverages the port created by 8250 PNP driver to communicate with
> the scalar board.
So, I will wait for next version based on serdev approach and then
will give my comments if any.
--
With Best Regards,
Andy Shevchenko
