linux-kernel - Re: [PATCH v4] tty: serial: men_z135_uart: Fix driver for changes in hardware

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Message-ID: <5457ED0C.3090705@hurleysoftware.com>
Date:	Mon, 03 Nov 2014 16:01:00 -0500
From:	Peter Hurley <peter@...leysoftware.com>
To:	Johannes Thumshirn <johannes.thumshirn@....de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jiri Slaby <jslaby@...e.cz>
CC:	linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4] tty: serial: men_z135_uart: Fix driver for changes
 in hardware

On 11/03/2014 11:05 AM, Johannes Thumshirn wrote:
> * Enable the handling of UART core's automatic flow control feature.
>   When AFE is active disable generation of modem status IRQs.

So HUPCL doesn't work when CRTSCTS is set?

Is this because there's actually a problem with the IP core that
MSIs trash the autoCTS state, or is the problem that the driver
just shouldn't be calling uart_handle_cts_change() when autoCTS is
on?

Regards,
Peter Hurley
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