Re: [PATCH v2 1/1] serial: 8250_of: Drop quirk fot NPCM from 8250_port

From: Andy Shevchenko
Date: Thu Feb 15 2024 - 11:43:26 EST


On Thu, Feb 15, 2024 at 06:40:15PM +0200, Ilpo Järvinen wrote:
> On Thu, 15 Feb 2024, Andy Shevchenko wrote:

..

> > + /*
> > + * Nuvoton calls the scratch register 'UART_TOR' (timeout
> > + * register). Enable it, and set TIOC (timeout interrupt
> > + * comparator) to be 0x20 for correct operation.
> > + */
> > + serial_port_out(port, UART_NPCM_TOR, UART_NPCM_TOIE | 0x20);
> > +
> > + return serial8250_do_startup(port);
>
> I know this matches how it is currently done\

Exactly, I haven't changed the workflow.
Does it mean you are okay with the change?

> but I wonder if TOIE should not be enabled until ->setup_irq()
> has been called.

No idea, this will need an extensive test on the hardware and should
be done separately anyway. I have no HW to test this.

--
With Best Regards,
Andy Shevchenko