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serial: mxs-auart: Use generic uart-has-rtscts DT property 

Convert the Freescale MXS AUART 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 it is 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>
This commit is contained in:
Geert Uytterhoeven 2016-04-22 17:22:22 +02:00 committed by Greg Kroah-Hartman
parent 1006ed7e1b
commit 182cdcb8bb
2 changed files with 3 additions and 2 deletions
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2
Documentation/devicetree/bindings/serial/fsl-mxs-auart.txt
View File

@ -19,7 +19,7 @@ Required properties for "alphascale,asm9260-auart":
"ahb" - ahb gate. "ahb" - ahb gate.
Optional properties: Optional properties:
- fsl,uart-has-rtscts : Indicate the UART has RTS and CTS lines - uart-has-rtscts : Indicate the UART has RTS and CTS lines
for hardware flow control, for hardware flow control,
it also means you enable the DMA support for this UART. it also means you enable the DMA support for this UART.
- {rts,cts,dtr,dsr,rng,dcd}-gpios: specify a GPIO for RTS/CTS/DTR/DSR/RI/DCD - {rts,cts,dtr,dsr,rng,dcd}-gpios: specify a GPIO for RTS/CTS/DTR/DSR/RI/DCD

3
drivers/tty/serial/mxs-auart.c
View File

@ -1570,7 +1570,8 @@ static int serial_mxs_probe_dt(struct mxs_auart_port *s,
} }
s->port.line = ret; s->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 */)
set_bit(MXS_AUART_RTSCTS, &s->flags); set_bit(MXS_AUART_RTSCTS, &s->flags);
return 0; return 0;