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[PATCH v2 02/11] serial: sh-sci: Update DT binding documentation for dedicated RTS/CTS

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Some Renesas SCIF UARTs have dedicated lines for RTS/CTS hardware flow
control.  Whether these lines exist depends on SoC and UART instance
inside the SoC.  Whether these lines can be used for hardware flow
control depends on board wiring.

Amend the DT bindings with an optional property to indicate that RTS/CTS
hardware flow control lines exist, and can be used as such, according to
the Generic Serial DT Bindings.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: devicetree@vger.kernel.org
---
v2:
  - Drop RFC status,
  - Use "uart-has-rtscts" instead of "renesas,uart-has-rtscts",
  - Refer to the Generic Serial DT Bindings.
---
 Documentation/devicetree/bindings/serial/renesas,sci-serial.txt | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt b/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt
index 997baeaa869baa6f..7a0e15053db97481 100644
--- a/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt
+++ b/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt
@@ -78,6 +78,8 @@ Optional properties:
   - dma-names: Must contain a list of two DMA names, "tx" and "rx".
   - {cts,dsr,dcd,rng,rts,dtr}-gpios: Specify GPIOs for modem lines, cfr. the
     generic serial DT bindings in serial.txt.
+  - uart-has-rtscts: Indicates dedicated lines for RTS/CTS hardware flow
+    control, cfr. the generic serial DT bindings in serial.txt.
 
 Example:
 	aliases {
-- 
1.9.1

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[PATCH v2 00/11] serial: sh-sci: Hardware Flow Control Updates Geert Uytterhoeven <geert+renesas@glider.be> - 2016-04-29 15:00 +0200
  [PATCH v2 02/11] serial: sh-sci: Update DT binding documentation for dedicated RTS/CTS Geert Uytterhoeven <geert+renesas@glider.be> - 2016-04-29 15:10 +0200
    Re: [PATCH v2 02/11] serial: sh-sci: Update DT binding documentation  for dedicated RTS/CTS Rob Herring <robh@kernel.org> - 2016-05-03 20:10 +0200
  [PATCH v2 08/11] serial: sh-sci: Correct pin initialization on (H)SCIF Geert Uytterhoeven <geert+renesas@glider.be> - 2016-04-29 15:10 +0200
    Re: [PATCH v2 08/11] serial: sh-sci: Correct pin initialization on  (H)SCIF Peter Hurley <peter@hurleysoftware.com> - 2016-04-29 18:00 +0200
      Re: [PATCH v2 08/11] serial: sh-sci: Correct pin initialization on (H)SCIF Geert Uytterhoeven <geert@linux-m68k.org> - 2016-04-29 22:10 +0200
  [PATCH v2 11/11] serial: sh-sci: Add DT support for dedicated RTS/CTS Geert Uytterhoeven <geert+renesas@glider.be> - 2016-04-29 15:10 +0200
  [PATCH v2 01/11] serial: sh-sci: Update DT binding documentation for GPIO modem lines Geert Uytterhoeven <geert+renesas@glider.be> - 2016-04-29 15:10 +0200
  [PATCH v2 05/11] serial: sh-sci: Do not open-code sci_getreg() Geert Uytterhoeven <geert+renesas@glider.be> - 2016-04-29 15:10 +0200
    Re: [PATCH v2 05/11] serial: sh-sci: Do not open-code sci_getreg() Peter Hurley <peter@hurleysoftware.com> - 2016-04-29 17:40 +0200
  [PATCH v2 04/11] serial: sh-sci: Add support for GPIO-controlled modem lines Geert Uytterhoeven <geert+renesas@glider.be> - 2016-04-29 15:10 +0200
  [PATCH v2 06/11] serial: sh-sci: Add more Serial Port Register documentation Geert Uytterhoeven <geert+renesas@glider.be> - 2016-04-29 15:10 +0200
  [PATCH v2 03/11] serial: sh-sci: Always set TIOCM_CTS in .get_mctrl() callback Geert Uytterhoeven <geert+renesas@glider.be> - 2016-04-29 15:10 +0200
    Re: [PATCH v2 03/11] serial: sh-sci: Always set TIOCM_CTS in  .get_mctrl() callback Peter Hurley <peter@hurleysoftware.com> - 2016-04-29 17:40 +0200
  [PATCH v2 09/11] serial: sh-sci: Add pin initialization for SCIFA/SCIFB Geert Uytterhoeven <geert+renesas@glider.be> - 2016-04-29 15:10 +0200
  [PATCH v2 07/11] serial: sh-sci: Add more Serial Port Control/Data Register documentation Geert Uytterhoeven <geert+renesas@glider.be> - 2016-04-29 15:10 +0200

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