linux-kernel - Re: [PATCH] tty: serial: samsung

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Date:   Mon, 2 May 2022 13:44:00 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Hector Martin <marcan@...can.st>
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Sven Peter <sven@...npeter.dev>,
        Alyssa Rosenzweig <alyssa@...enzweig.io>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-serial@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] tty: serial: samsung_tty: Fix suspend/resume on S5L

On Mon, May 02, 2022 at 06:25:05PM +0900, Hector Martin wrote:
> We were restoring the IRQ masks then clearing them again, because
> ucon_mask wasn't set properly. Adding that makes suspend/resume
> work as intended.
> 
> Signed-off-by: Hector Martin <marcan@...can.st>
> ---
>  drivers/tty/serial/samsung_tty.c | 1 +
>  include/linux/serial_s3c.h       | 3 +++
>  2 files changed, 4 insertions(+)

Does this fix a specific older commit?

And should it be backported to older stable kernels?

thanks,

greg k-h