From: Laxman Dewangan <ldewangan@nvidia.com>
To: lee.jones@linaro.org, robh+dt@kernel.org, pawel.moll@arm.com,
mark.rutland@arm.com, ijc+devicetree@hellion.org.uk,
galak@codeaurora.org, linus.walleij@linaro.org, gnurou@gmail.com
Cc: broonie@kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org,
swarren@nvidia.com, treding@nvidia.com, k.kozlowski@samsung.com,
rklein@nvidia.com, Laxman Dewangan <ldewangan@nvidia.com>
Subject: [PATCH V9 5/6] gpio: add DT binding doc for gpio of PMIC max77620/max20024
Date: Fri, 11 Mar 2016 20:13:57 +0530 [thread overview]
Message-ID: <1457707438-9842-6-git-send-email-ldewangan@nvidia.com> (raw)
In-Reply-To: <1457707438-9842-1-git-send-email-ldewangan@nvidia.com>
Maxim Semiconductor's PMIC MAX77620/MAX20024 has 8 GPIO pins
which act as GPIO as well as special function mode.
Add DT binding document to support these pins in GPIO
mode via GPIO framework.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
---
Changes from V4:
- Separate out from gpio driver
Changes from V5/V6/V7:
- None
Changes from V8:
- Collected Linus ack.
.../devicetree/bindings/gpio/gpio-max77620.txt | 25 ++++++++++++++++++++++
1 file changed, 25 insertions(+)
create mode 100644 Documentation/devicetree/bindings/gpio/gpio-max77620.txt
diff --git a/Documentation/devicetree/bindings/gpio/gpio-max77620.txt b/Documentation/devicetree/bindings/gpio/gpio-max77620.txt
new file mode 100644
index 0000000..410e716
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-max77620.txt
@@ -0,0 +1,25 @@
+GPIO driver for MAX77620 Power management IC from Maxim Semiconductor.
+
+Device has 8 GPIO pins which can be configured as GPIO as well as the
+special IO functions.
+
+Required properties:
+-------------------
+- gpio-controller : Marks the device node as a gpio controller.
+- #gpio-cells : Should be two. The first cell is the pin number and
+ the second cell is used to specify the gpio polarity:
+ 0 = active high
+ 1 = active low
+For more details, please refer generic GPIO DT binding document
+<devicetree/bindings/gpio/gpio.txt>.
+
+Example:
+--------
+#include <dt-bindings/mfd/max77620.h>
+...
+max77620@3c {
+ compatible = "maxim,max77620";
+
+ gpio-controller;
+ #gpio-cells = <2>;
+};
--
2.1.4
next prev parent reply other threads:[~2016-03-11 14:43 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-11 14:43 [PATCH V9 0/6] Add support for MAXIM MAX77620/MAX20024 PMIC Laxman Dewangan
2016-03-11 14:43 ` [PATCH V9 1/6] mfd: add device-tree binding doc for PMIC max77620/max20024 Laxman Dewangan
2016-03-11 14:43 ` [PATCH V9 2/6] mfd: max77620: add core driver for MAX77620/MAX20024 Laxman Dewangan
2016-03-11 14:43 ` [PATCH V9 3/6] pinctrl: add DT binding doc for pincontrol of PMIC max77620/max20024 Laxman Dewangan
2016-03-11 14:43 ` [PATCH V9 4/6] pinctrl: max77620: add pincontrol driver for MAX77620/MAX20024 Laxman Dewangan
2016-03-11 14:43 ` Laxman Dewangan [this message]
2016-03-11 14:43 ` [PATCH V9 6/6] gpio: max77620: add gpio " Laxman Dewangan
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