Hello Fabio,

On Mon, Sep 26, 2016 at 11:13:37AM -0300, Fabio Estevam wrote:

On Mon, Sep 26, 2016 at 11:09 AM, Uwe Kleine-König
[off-list ref] wrote:

quoted

On Mon, Sep 26, 2016 at 03:55:31PM +0200, Sascha Hauer wrote:

quoted

The USR2_DCDIN bit is tested for in register usr1. As the name
suggests the usr2 register should be used instead. This fixes
reading the Carrier detect status.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Fixes: 90ebc4838666 ("serial: imx: repair and complete handshaking")
Acked-by: Uwe Kleine-König <redacted>

Great, so it affects 4.5+ kernels and should probably have:

Cc: <redacted> # 4.5+

This is usually not necessary if there is a Fixes: line.

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |