linux-kernel - [PATCHv5 1/3] Input: twl4030-pwrbutton

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Message-Id: <1382560002-6299-2-git-send-email-sre@debian.org>
Date:	Wed, 23 Oct 2013 22:26:40 +0200
From:	Sebastian Reichel <sre@...ian.org>
To:	Sebastian Reichel <sre@...g0.de>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <rob.herring@...xeda.com>,
	Sebastian Reichel <sre@...ian.org>,
	Peter Ujfalusi <peter.ujfalusi@...com>,
	Sachin Kamat <sachin.kamat@...aro.org>,
	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org
Subject: [PATCHv5 1/3] Input: twl4030-pwrbutton - add device tree support

Add device tree support for twl4030 power button driver.

Signed-off-by: Sebastian Reichel <sre@...ian.org>
---
 .../devicetree/bindings/input/twl4030-pwrbutton.txt      | 13 +++++++++++++
 drivers/input/misc/twl4030-pwrbutton.c                   | 16 ++++++++++++----
 2 files changed, 25 insertions(+), 4 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/input/twl4030-pwrbutton.txt

diff --git a/Documentation/devicetree/bindings/input/twl4030-pwrbutton.txt b/Documentation/devicetree/bindings/input/twl4030-pwrbutton.txt
new file mode 100644
index 0000000..945ec74
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/twl4030-pwrbutton.txt
@@ -0,0 +1,13 @@
+* TWL4030's pwrbutton device tree bindings
+
+Required SoC Specific Properties:
+- compatible: should be one of the following
+   - "ti,twl4030-pwrbutton": For controllers compatible with twl4030
+- interrupt: should be one of the following
+   - <8>: For controllers compatible with twl4030
+
+Example:
+	twl_pwrbutton: pwrbutton {
+		compatible = "ti,twl4030-pwrbutton";
+		interrupts = <8>;
+	};
diff --git a/drivers/input/misc/twl4030-pwrbutton.c b/drivers/input/misc/twl4030-pwrbutton.c
index b9a05fd..a3a0fe3 100644
--- a/drivers/input/misc/twl4030-pwrbutton.c
+++ b/drivers/input/misc/twl4030-pwrbutton.c
@@ -52,7 +52,7 @@ static irqreturn_t powerbutton_irq(int irq, void *_pwr)
 	return IRQ_HANDLED;
 }
 
-static int __init twl4030_pwrbutton_probe(struct platform_device *pdev)
+static int twl4030_pwrbutton_probe(struct platform_device *pdev)
 {
 	struct input_dev *pwr;
 	int irq = platform_get_irq(pdev, 0);
@@ -106,16 +106,24 @@ static int __exit twl4030_pwrbutton_remove(struct platform_device *pdev)
 	return 0;
 }
 
+#if IS_ENABLED(CONFIG_OF)
+static const struct of_device_id twl4030_pwrbutton_dt_match_table[] = {
+       { .compatible = "ti,twl4030-pwrbutton" },
+       {},
+};
+MODULE_DEVICE_TABLE(of, twl4030_pwrbutton_dt_match_table);
+#endif
+
 static struct platform_driver twl4030_pwrbutton_driver = {
+	.probe		= twl4030_pwrbutton_probe,
 	.remove		= __exit_p(twl4030_pwrbutton_remove),
 	.driver		= {
 		.name	= "twl4030_pwrbutton",
 		.owner	= THIS_MODULE,
+		.of_match_table = of_match_ptr(twl4030_pwrbutton_dt_match_table),
 	},
 };
-
-module_platform_driver_probe(twl4030_pwrbutton_driver,
-			twl4030_pwrbutton_probe);
+module_platform_driver(twl4030_pwrbutton_driver);
 
 MODULE_ALIAS("platform:twl4030_pwrbutton");
 MODULE_DESCRIPTION("Triton2 Power Button");
-- 
1.8.4.rc3

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