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serial: sh-sci: Update DT binding documentation for GPIO modem lines 

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 Generic Serial DT Bindings.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Rob Herring <robh@kernel.org>
Cc: devicetree@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Geert Uytterhoeven 2016-06-03 12:00:01 +02:00 committed by Greg Kroah-Hartman
parent abd530de2a
commit 0c529b3fc6
1 changed files with 2 additions and 0 deletions
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Documentation/devicetree/bindings/serial/renesas,sci-serial.txt
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@ -76,6 +76,8 @@ 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}-gpios: Specify GPIOs for modem lines, cfr. the
generic serial DT bindings in serial.txt.
Example:
aliases {