linux-kernel - Re: [PATCH v2] serial: 8250: Preserve original value of DLF register

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Message-ID: <2023080954-everyday-galore-f520@gregkh>
Date:   Wed, 9 Aug 2023 13:47:07 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     240401736@...com
Cc:     andriy.shevchenko@...ux.intel.com, ilpo.jarvinen@...ux.intel.com,
        jirislaby@...nel.org, linux-kernel@...r.kernel.org,
        linux-serial@...r.kernel.org, ??? <luoruihong@...omi.com>,
        ??? <weipengliang@...omi.com>, ??? <wengjinfei@...omi.com>,
        colorsu1922@...il.com
Subject: Re: [PATCH v2] serial: 8250: Preserve original value of DLF register

On Wed, Aug 09, 2023 at 02:30:58PM +0800, 240401736@...com wrote:
> On Thu, 29 Jun 2023 20:35:30 +0800, ruihongluo wrote:
> > This commit is aimed at preserving the original value of the
> > DLF(Divisor Latch Fraction Register). When the DLF register is
> > modified without preservation, it can disrupt the baudrate settings
> > established by firmware or bootloader , leading to data corruption
> > and the generation of unreadable or distorted characters.
> >
> > Fixes: 701c5e73b296 ("serial: 8250_dw: add fractional divisor support")
> > Signed-off-by: Ruihong Luo <luoruihong@...omi.com>
> 
> Will this patch be merged into the 5.15 branch? We also need this patch on
> the 5.15 branch.

What is the git commit id of it in Linus's tree?

thanks,

greg k-h