serial: imx: Use generic uart-has-rtscts DT property

Convert the Freescale IMX UART driver from using the vendor-specific
"fsl,uart-has-rtscts" to the generic "uart-has-rtscts" DT property, as
documented by the Generic Serial DT Bindings.

The old vendor-specific property is still recognized by the driver for
backwards compatibility, but deprecated.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 4b38392f4bd6..0df2b1c091ae 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -1980,7 +1980,8 @@ static int serial_imx_probe_dt(struct imx_port *sport,
         }
         sport->port.line = ret;
 
-        if (of_get_property(np, "fsl,uart-has-rtscts", NULL))
+        if (of_get_property(np, "uart-has-rtscts", NULL) ||
+            of_get_property(np, "fsl,uart-has-rtscts", NULL) /* deprecated */)
                 sport->have_rtscts = 1;
 
         if (of_get_property(np, "fsl,dte-mode", NULL))