From: <Andrei.Stefanescu@microchip.com>
To: <linus.walleij@linaro.org>, <gregkh@linuxfoundation.org>,
<Nicolas.Ferre@microchip.com>, <robh+dt@kernel.org>,
<mark.rutland@arm.com>
Cc: <Ludovic.Desroches@microchip.com>,
<Cristian.Birsan@microchip.com>,
<linux-arm-kernel@lists.infradead.org>,
<linux-gpio@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<devicetree@vger.kernel.org>, <Andrei.Stefanescu@microchip.com>
Subject: [PATCH 1/3] dt-bindings: gpio: add sama5d2 PIOBU support
Date: Wed, 7 Nov 2018 15:12:32 +0000 [thread overview]
Message-ID: <1541603580-17448-2-git-send-email-andrei.stefanescu@microchip.com> (raw)
In-Reply-To: <1541603580-17448-1-git-send-email-andrei.stefanescu@microchip.com>
This patch describes the compatible and the device tree
bindings necessary for the sama5d2 PIOBU GPIO
controller driver.
Signed-off-by: Andrei Stefanescu <andrei.stefanescu@microchip.com>
---
.../bindings/gpio/gpio-sama5d2-piobu.txt | 23 ++++++++++++++++++++++
1 file changed, 23 insertions(+)
create mode 100644 Documentation/devicetree/bindings/gpio/gpio-sama5d2-piobu.txt
diff --git a/Documentation/devicetree/bindings/gpio/gpio-sama5d2-piobu.txt b/Documentation/devicetree/bindings/gpio/gpio-sama5d2-piobu.txt
new file mode 100644
index 0000000..791ac51
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-sama5d2-piobu.txt
@@ -0,0 +1,23 @@
+GPIO controller for SAMA5D2 PIOBU pins.
+
+This pins have the property of not losing their voltage
+during Backup/Self-refresh mode.
+
+These bindings should be set to a node in the dtsi file.
+
+Required properties:
+- compatible: "syscon", "microchip,sama5d2-piobu"
+- #gpio-cells: There are 2. The pin number is the
+ first, the second represents additional
+ parameters such as GPIO_ACTIVE_HIGH/LOW.
+- gpio-controller: Marks the port as GPIO controller.
+
+Example:
+
+ secumod@fc040000 {
+ compatible = "syscon", "microchip,sama5d2-piobu";
+ reg = <0xfc040000 0x100>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
--
2.7.4
next prev parent reply other threads:[~2018-11-07 15:12 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-07 15:12 [PATCH 0/3] add sama5d2 PIOBU GPIO driver Andrei.Stefanescu
2018-11-07 15:12 ` Andrei.Stefanescu [this message]
2018-11-15 9:43 ` [PATCH 1/3] dt-bindings: gpio: add sama5d2 PIOBU support Linus Walleij
2018-11-07 15:12 ` [PATCH 2/3] MAINTAINERS: add maintainer for sama5d2 PIOBU GPIO driver Andrei.Stefanescu
2018-11-15 9:40 ` Linus Walleij
2018-11-07 15:12 ` [PATCH 3/3] gpio: add driver for sama5d2 PIOBU pins Andrei.Stefanescu
2018-11-15 9:56 ` Linus Walleij
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