linux-kernel - [PATCHv7 1/4] Input: twl4030-pwrbutton: add device tree support

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Message-Id: <1383948687-32279-2-git-send-email-sre@debian.org>
Date:	Fri,  8 Nov 2013 23:11:24 +0100
From:	Sebastian Reichel <sre@...ian.org>
To:	Sebastian Reichel <sre@...g0.de>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Dmitry Torokhov <dtor@...l.ru>, linux-input@...r.kernel.org
Cc:	Rob Herring <rob.herring@...xeda.com>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Stephen Warren <swarren@...dotorg.org>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Rob Landley <rob@...dley.net>,
	Grant Likely <grant.likely@...aro.org>,
	devicetree@...r.kernel.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org, Sebastian Reichel <sre@...ian.org>
Subject: [PATCHv7 1/4] Input: twl4030-pwrbutton: add device tree support

Add device tree support for twl4030 power button driver.

Adding device tree support involved converting the
driver to module_platform_driver().

Signed-off-by: Sebastian Reichel <sre@...ian.org>
Acked-by: Kumar Gala <galak@...eaurora.org>
Tested-by: Florian Vaussard <florian.vaussard@...l.ch>
---
 drivers/input/misc/twl4030-pwrbutton.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

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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