From mboxrd@z Thu Jan  1 00:00:00 1970
From: clemens.gruber@pqgruber.com (Clemens Gruber)
Date: Sat, 7 Jan 2017 16:34:34 +0100
Subject: imx: RS-485 problems during TX, maybe DMA related
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To: linux-arm-kernel@lists.infradead.org
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Hi Fabio,

On Sat, Jan 07, 2017 at 12:57:10PM -0200, Fabio Estevam wrote:
> The MX6QDL_PAD_CSI0_DAT16__UART4_CTS_B option is only valid in dte mode.

Ah, the input select is limited in that way, I see.

You wrote that you tried rts-gpios.
What about setting cts-gpios to gpio6 2 in the DT?

Or can you remux RX and TX to be switched to work in dte mode?

Regards,
Clemens