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Subject[PATCHv7 1/4] Input: twl4030-pwrbutton: add device tree support
Date
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@debian.org>
Acked-by: Kumar Gala <galak@codeaurora.org>
Tested-by: Florian Vaussard <florian.vaussard@epfl.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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