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* [PATCH 1/5] dts: gpio_atmel: adapt binding doc to reality
@ 2017-05-26 18:06 ` Uwe Kleine-König
  0 siblings, 0 replies; 32+ messages in thread
From: Uwe Kleine-König @ 2017-05-26 18:06 UTC (permalink / raw)
  To: linux-arm-kernel

The second cell in a gpio reference is used to pass GPIO_ACTIVE_LOW or
GPIO_ACTIVE_HIGH. The gpio device can also be used as irq controller and
a reference can contain the IRQ_TYPE_* values in the second cell.

Signed-off-by: Uwe Kleine-K?nig <uwe@kleine-koenig.org>
---
 Documentation/devicetree/bindings/gpio/gpio_atmel.txt | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/gpio/gpio_atmel.txt b/Documentation/devicetree/bindings/gpio/gpio_atmel.txt
index 85f8c0d084fa..b53fe3bce270 100644
--- a/Documentation/devicetree/bindings/gpio/gpio_atmel.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio_atmel.txt
@@ -5,9 +5,16 @@ Required properties:
 - reg: Should contain GPIO controller registers location and length
 - interrupts: Should be the port interrupt shared by all the pins.
 - #gpio-cells: Should be two.  The first cell is the pin number and
-  the second cell is used to specify optional parameters (currently
-  unused).
+  the second cell is used to specify optional parameters to declare if the GPIO
+  is active high or low. See gpio.txt.
 - gpio-controller: Marks the device node as a GPIO controller.
+- interrupt-controller: Marks the device node as a GPIO controller.
+- #interrupt-cells: Should be two. The first cell is the pin number and the
+  second cell is used to specify irq type flags:
+      1 = low-to-high edge triggered.
+      2 = high-to-low edge triggered.
+      4 = active high level-sensitive.
+      8 = active low level-sensitive.
 
 optional properties:
 - #gpio-lines: Number of gpio if absent 32.
@@ -21,5 +28,7 @@ Example:
 		#gpio-cells = <2>;
 		gpio-controller;
 		#gpio-lines = <19>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
 	};
 
-- 
2.11.0

^ permalink raw reply related	[flat|nested] 32+ messages in thread

end of thread, other threads:[~2017-06-12  7:32 UTC | newest]

Thread overview: 32+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2017-05-26 18:06 [PATCH 1/5] dts: gpio_atmel: adapt binding doc to reality Uwe Kleine-König
2017-05-26 18:06 ` Uwe Kleine-König
2017-05-26 18:06 ` [PATCH RFC 3/5] ARM: dts: at91-sama5d4: use IRQ_TYPE_* to specify irq flags Uwe Kleine-König
2017-05-26 18:06   ` Uwe Kleine-König
2017-05-26 19:17   ` Marek Vasut
2017-05-26 19:17     ` Marek Vasut
2017-05-31  9:52     ` Alexandre Belloni
2017-05-31  9:52       ` Alexandre Belloni
     [not found] ` <20170526180609.2699-1-uwe-rXY34ruvC2xidJT2blvkqNi2O/JbrIOy@public.gmane.org>
2017-05-26 18:06   ` [PATCH RFC 2/5] ARM: dts: am335x-baltos: " Uwe Kleine-König
2017-05-26 18:06     ` Uwe Kleine-König
2017-05-31 17:19     ` Tony Lindgren
2017-05-31 17:19       ` Tony Lindgren
2017-05-31 17:22       ` Yegor Yefremov
2017-05-31 17:22         ` Yegor Yefremov
     [not found]         ` <CAGm1_ktJp+3t9ExuFJhKTmbM63yt-82PGP26KkEHGqK-tnfWRg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-06-06 14:33           ` Yegor Yefremov
2017-06-06 14:33             ` Yegor Yefremov
     [not found]             ` <CAGm1_kuKxVOetzMLdnVO+xQ7egX+paqOHLS+ckz6nFwKD5QBuQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-06-12  7:32               ` Tony Lindgren
2017-06-12  7:32                 ` Tony Lindgren
2017-05-26 18:06   ` [PATCH RFC 4/5] ARM: dts: tegra: " Uwe Kleine-König
2017-05-26 18:06     ` Uwe Kleine-König
2017-05-26 18:06 ` [PATCH RFC 5/5] ARM: dts: vf-colibri-eval: " Uwe Kleine-König
2017-05-26 18:06   ` Uwe Kleine-König
2017-06-04  3:49   ` Shawn Guo
2017-06-04  3:49     ` Shawn Guo
2017-06-05  2:17     ` Stefan Agner
2017-06-05  2:17       ` Stefan Agner
2017-05-26 18:52 ` [PATCH 1/5] dts: gpio_atmel: adapt binding doc to reality Andrew Lunn
2017-05-26 18:52   ` Andrew Lunn
2017-05-26 19:07   ` [PATCH v2 " Uwe Kleine-König
2017-05-26 19:07     ` Uwe Kleine-König
2017-05-31  9:52     ` Alexandre Belloni
2017-05-31  9:52       ` Alexandre Belloni

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