linux-kernel - Re: [PATCH] serial: imx: allow CRTSCTS with RTS/CTS GPIOs

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Message-ID: <enih2kbbrs3ngzciceekrks6gwclanmfxtzvrfg4fmeihnej5v@boap3ccfuy6o>
Date: Thu, 23 Oct 2025 08:55:09 +0200
From: Uwe Kleine-König <u.kleine-koenig@...libre.com>
To: Matthias Schiffer <matthias.schiffer@...tq-group.com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
	Jiri Slaby <jirislaby@...nel.org>, Shawn Guo <shawnguo@...nel.org>, 
	Sascha Hauer <s.hauer@...gutronix.de>, Pengutronix Kernel Team <kernel@...gutronix.de>, 
	Fabio Estevam <festevam@...il.com>, linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org, 
	imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org, linux@...tq-group.com
Subject: Re: [PATCH] serial: imx: allow CRTSCTS with RTS/CTS GPIOs

Hello Matthias,

On Wed, Oct 22, 2025 at 03:36:51PM +0200, Matthias Schiffer wrote:
> As it seems preferable not to introduce the wrong code in the first place, I
> would propose to change the order of patches: The first one would update the
> handling of CTSC and IRTS with CRTSCTS in the absence of have_rtscts (without
> functional change, as CRTSCTS can't be set without have_rtscts), with the final
> patch of the series allowing CRTSCTS with just have_rtsgpio.

Sounds good.

Best regards
Uwe

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