linux-kernel - Re: [PATCH V2] serial: qcom_geni_serial: To correct QUP Version detection logic

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Message-ID: <20200811082330.GC113774@kroah.com>
Date:   Tue, 11 Aug 2020 10:23:30 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Paras Sharma <parashar@...eaurora.org>
Cc:     Jiri Slaby <jslaby@...e.com>, linux-arm-msm@...r.kernel.org,
        linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V2] serial: qcom_geni_serial: To correct QUP Version
 detection logic

On Tue, Aug 11, 2020 at 01:13:14PM +0530, Paras Sharma wrote:
> The current implementation reduces the sampling rate by half
> if qup HW version greater is than 2.5 by checking if the geni
> SE major version is greater than 2 and geni SE minor version
> is greater than 5.
> 
> This implementation fails when the version is 3 or greater.
> 
> Hence by adding the another check for geni SE major version,
> this problem can be solved.
> 
> Signed-off-by: Paras Sharma <parashar@...eaurora.org>
> ---
>  drivers/tty/serial/qcom_geni_serial.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)

Should this go to stable kernels?  If so, how far back?  What git commit
id is this patch fixing?  And if so, why not put a Fixes: tag on this as
well?

thanks,

greg k-h