Re: [PATCH] MEDIATEK: serial: 8250_mtk: Add ACPI support

Zhiyong Tao (陶志勇)
2026-03-18T12:13:01Z

On Wed, 2026-01-21 at 14:23 +0800, Zhiyong Tao wrote:
> On Tue, 2026-01-06 at 11:02 +0100, Greg KH wrote:
> > On Mon, Jan 05, 2026 at 10:39:55AM +0800, Zhiyong Tao wrote:
> > > From: "Zhiyong.Tao" <zhiyong.tao@mediatek.com>
> > >
> > > Add ACPI support to 8250_mtk driver. This makes it possible to
> > > use UART on ARM-based desktops with EDK2 UEFI firmware.
> > >
> > > Signed-off-by: Yenchia Chen <yenchia.chen@mediatek.com>
> > > Signed-off-by: Zhiyong.Tao <zhiyong.tao@mediatek.com>
> > > ---
> > >  drivers/tty/serial/8250/8250_mtk.c | 23 +++++++++++++++++++----
> > >  1 file changed, 19 insertions(+), 4 deletions(-)
> >
> > This is a resend of the previous version, right?  Or did something
> > change?
> >
> > confused,
> >
> > greg k-h
>
> ==> Hi Greg,
> Yes, previously Yenchia Chen helped to send out a version. Currently,
> this solution is specifically for the GB10 project and was made to
> support Windows ACPI settings.
>
> In actual application scenarios, the apdma clk will not be turned off
> in normal mode. It is only turned off in the SSPM microprocessor
> after
> entering standby, and when resuming, the apdma clk is re-enabled by
> SSPM.
>
> As for other Linux projects, apdma still uses the DTS node.
>
> Thanks
>

Hi Greg,
Do you have other suggestion for this?

Thanks