linux-kernel - [PATCH 7/8] dt-bindings: iio/counter: ftm-quaddec: add poll-interval parameter

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Date:   Mon, 18 Feb 2019 15:03:20 +0100
From:   Patrick Havelange <patrick.havelange@...ensium.com>
To:     Jonathan Cameron <jic23@...nel.org>,
        Hartmut Knaack <knaack.h@....de>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Shawn Guo <shawnguo@...nel.org>, Li Yang <leoyang.li@....com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Thierry Reding <thierry.reding@...il.com>,
        Esben Haabendal <esben@...bendal.dk>,
        William Breathitt Gray <vilhelm.gray@...il.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        linux-iio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-pwm@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Cc:     Patrick Havelange <patrick.havelange@...ensium.com>
Subject: [PATCH 7/8] dt-bindings: iio/counter: ftm-quaddec: add poll-interval parameter

New optional parameter supported by updated driver.

Signed-off-by: Patrick Havelange <patrick.havelange@...ensium.com>
Reviewed-by: Esben Haabendal <esben@...bendal.dk>
---
 .../devicetree/bindings/iio/counter/ftm-quaddec.txt       | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/iio/counter/ftm-quaddec.txt b/Documentation/devicetree/bindings/iio/counter/ftm-quaddec.txt
index 4d18cd722074..60554e6c4367 100644
--- a/Documentation/devicetree/bindings/iio/counter/ftm-quaddec.txt
+++ b/Documentation/devicetree/bindings/iio/counter/ftm-quaddec.txt
@@ -6,8 +6,14 @@ Required properties:
 - compatible:		Must be "fsl,ftm-quaddec".
 - reg:			Must be set to the memory region of the flextimer.
 
-Optional property:
+Optional properties:
 - big-endian:		Access the device registers in big-endian mode.
+- poll-interval		Poll interval time in milliseconds for detecting
+			the under/overflow of the counter. Default value
+			is 100.
+			A value of 0 disables polling. This value can also
+			be set at runtime, but not to less than this initial
+			value (except 0 for disabling).
 
 Example:
 		counter0: counter@...0000 {
-- 
2.17.1