Amend the DT bindings for the Renesas SCI driver to allow describing
optional GPIO-controlled modem lines, which can be used where dedicated
modem lines are not available.
The property naming is dictated by the SERIAL_MCTRL_GPIO helpers.
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Cc: devicetree@xxxxxxxxxxxxxxx
---
Documentation/devicetree/bindings/serial/renesas,sci-serial.txt | 3 +++
1 file changed, 3 insertions(+)
diff --git a/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt b/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt
index 528c3b90f23cb04b..f8d7b36742967163 100644
--- a/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt
+++ b/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt
@@ -76,6 +76,9 @@ Optional properties:
- dmas: Must contain a list of two references to DMA specifiers, one for
transmission, and one for reception.
- dma-names: Must contain a list of two DMA names, "tx" and "rx".
+ - {cts,dsr,dcd,rng,rts,dtr,out1,out2}-gpios: Must contain a GPIO specifier,
+ referring to the GPIO pin to be used as the UART's CTS, DSR, DCD, RNG, RTS,
+ DTR, OUT1, or OUT2 line.
Example:
aliases {
--
1.9.1
