linux-kernel - Re: [External] Re: [PATCH] serial: 8250: fix panic due to PSLVERR

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Message-ID: <CAEEQ3wmMymsLZGvomkUth_rczdUaHxeDjCV8Vm6P44RpjVzZQA@mail.gmail.com>
Date: Mon, 7 Apr 2025 21:00:22 +0800
From: yunhui cui <cuiyunhui@...edance.com>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc: gregkh@...uxfoundation.org, jirislaby@...nel.org, 
	john.ogness@...utronix.de, pmladek@...e.com, arnd@...db.de, 
	namcao@...utronix.de, benjamin.larsson@...exis.eu, schnelle@...ux.ibm.com, 
	linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org
Subject: Re: [External] Re: [PATCH] serial: 8250: fix panic due to PSLVERR

Hi Andy,

On Fri, Apr 4, 2025 at 6:21 PM Andy Shevchenko
<andriy.shevchenko@...ux.intel.com> wrote:
>
> On Fri, Apr 04, 2025 at 10:31:25AM +0800, yunhui cui wrote:
> > On Thu, Apr 3, 2025 at 7:50 PM Andy Shevchenko
> > <andriy.shevchenko@...ux.intel.com> wrote:
> > > On Thu, Apr 03, 2025 at 02:36:16PM +0300, Andy Shevchenko wrote:
> > > > On Thu, Apr 03, 2025 at 05:03:36PM +0800, Yunhui Cui wrote:
> > >
> > > A couple of more questions here:
> > > 1) what is the DW IP version and where did you get the PSLVERR_RESP_EN
> > > parameter from?
> > > 2) what is the setting of the UART_16550_COMPATIBLE parameter?
> >
> > 1): Refer to: https://www.synopsys.com/dw/ipdir.php?c=DW_apb_uart
>
> I don't understand this. I asked about version of the IP, I have datasheets
> already for many of them, I can't find PSLVERR_RESP_EN there, that's why the
> question.

You can check the link:
https://iccircle.com/static/upload/img20240313113905.pdf for the
relevant introduction.

>
> > 2): data->uart_16550_compatible == 0
>
> Thanks!
>
> --
> With Best Regards,
> Andy Shevchenko
>
>

Thanks,
Yunhui