linux-kernel - Re: [PATCH 09/16] tty: serial: 8250_dma: Add a TX trigger workaround for AM33xx

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Date:	Mon, 15 Sep 2014 19:01:57 +0200
From:	Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:	Peter Hurley <peter@...leysoftware.com>,
	Heikki Krogerus <heikki.krogerus@...ux.intel.com>
CC:	linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-omap@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	tony@...mide.com, balbi@...com, gregkh@...uxfoundation.org,
	Alan Cox <alan@...ux.intel.com>
Subject: Re: [PATCH 09/16] tty: serial: 8250_dma: Add a TX trigger workaround
 for AM33xx

On 09/11/2014 04:35 PM, Peter Hurley wrote:
> I do need to find out if omap hardware sets UART_MSR_DCTS when auto CTS
> is on. Would you mind running the debug patch below with HW flow control on?

I didn't forget about this. However I told minicom to use hardware flow
control (and I see the driver set the HW bit) but I haven't seen that
uart_handle_cts_change() has been invoked at all. I'm going to check
two other boards and report then.

> Regards,
> Peter Hurley

Sebastian
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