linux-kernel - Re: [PATCH v2] serial: 8250 dw: clear FIFO before writting LCR

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Message-ID: <3ef823f1-6c4c-4b38-92c4-5077a2d3149e@kernel.org>
Date: Wed, 20 Aug 2025 06:06:48 +0200
From: Jiri Slaby <jirislaby@...nel.org>
To: adriana@...sta.com, linux-serial@...r.kernel.org,
 Linux kernel mailing list <linux-kernel@...r.kernel.org>
Cc: ilpo.jarvinen@...ux.intel.com, andriy.shevchenko@...ux.intel.com,
 gregkh@...uxfoundation.org, john.ogness@...utronix.de
Subject: Re: [PATCH v2] serial: 8250 dw: clear FIFO before writting LCR

Huh, you mangled even e-mails:

5.1.0 - Unknown address error 550-'5.1.1 
<ilpo.jarvinnen@...ux.intel.com>: Recipient address rejected: User 
unknown in virtual mailbox table'

<linux-kernel@...r.kernel.rg>: Host or domain name not found. Name service
     error for name=vger.kernel.rg type=AAAA: Host not found

On 20. 08. 25, 6:01, Jiri Slaby wrote:
> On 19. 08. 25, 21:13, adriana@...sta.com wrote:
>> This patch is proposing a custom configuration for Synopsys DesignWare
>> serial to be used by products with associated compatible string in the
>> device tree.
>>
>> The PORT_DWAPB config will be used instead of the default PORT_16550A
>> which does not include the UART_FCR_CLEAR_RCVR and UART_FCR_CLEAR_XMIT
>> bits for the FIFO configuration register. Having those flags is necessary
>> to clear FIFO when the serial port is reconfigured with do_set_termios.
> 
> How was this tested? I assume it does not even compile.
> 

-- 
js
suse labs