linux-kernel - [PATCHv2 1/2] ARM: vt8500: Minor update to vt8500-rtc for devicetree support

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Date:	Sat, 21 Jul 2012 23:20:21 +1200
From:	Tony Prisk <linux@...sktech.co.nz>
To:	Alessandro Zumoo <a.zummo@...ertech.it>,
	Alan Cox <alan@...ux.intel.com>
Cc:	Tony Prisk <linux@...sktech.co.nz>,
	Grant Likely <grant.likely@...retlab.ca>,
	Rob Herring <rob.herring@...xeda.com>,
	rtc-linux@...glegroups.com, linux-kernel@...r.kernel.org,
	devicetree-discuss@...ts.ozlabs.org,
	VT8500 mailing list 
	<vt8500-wm8505-linux-kernel@...glegroups.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-serial@...r.kernel.org
Subject: [PATCHv2 1/2] ARM: vt8500: Minor update to vt8500-rtc for devicetree support

Signed-off-by: Tony Prisk <linux@...sktech.co.nz>
Acked-by: Arnd Bergmann <arnd@...db.de>
---
v2:
Split single patch into seperate patches.
Correct documentation.
 .../devicetree/bindings/rtc/vt8500-rtc.txt         |   14 ++++++++++++++
 drivers/rtc/rtc-vt8500.c                           |    8 ++++++++
 2 files changed, 22 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/rtc/vt8500-rtc.txt

diff --git a/Documentation/devicetree/bindings/rtc/vt8500-rtc.txt b/Documentation/devicetree/bindings/rtc/vt8500-rtc.txt
new file mode 100644
index 0000000..c764d4d
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/vt8500-rtc.txt
@@ -0,0 +1,14 @@
+* VIA VT8500 and Wondermedia WM8xxx SoC Real-time clock (RTC) Controller
+
+Required properties:
+- compatible : "via,vt8500-rtc"
+- reg : Address range of the rtc registers
+- interrupt: Should contain the rtc interrupt number
+
+Example:
+
+	rtc@...00000 {
+		compatible = "via,vt8500-rtc";
+		reg = <0xd8100000 0x2c>;
+		interrupts = <48>;
+	};
diff --git a/drivers/rtc/rtc-vt8500.c b/drivers/rtc/rtc-vt8500.c
index 9e94fb1..d21fcd3 100644
--- a/drivers/rtc/rtc-vt8500.c
+++ b/drivers/rtc/rtc-vt8500.c
@@ -23,6 +23,7 @@
 #include <linux/bcd.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
+#include <linux/of.h>
 
 /*
  * Register definitions
@@ -302,12 +303,18 @@ static int __devexit vt8500_rtc_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct of_device_id vt8500_rtc_ids[] = {
+	{ .compatible = "via,vt8500-rtc", },
+	{}
+};
+
 static struct platform_driver vt8500_rtc_driver = {
 	.probe		= vt8500_rtc_probe,
 	.remove		= __devexit_p(vt8500_rtc_remove),
 	.driver		= {
 		.name	= "vt8500-rtc",
 		.owner	= THIS_MODULE,
+		.of_match_table = of_match_ptr(vt8500_rtc_ids),
 	},
 };
 
@@ -317,3 +324,4 @@ MODULE_AUTHOR("Alexey Charkov <alchark@...il.com>");
 MODULE_DESCRIPTION("VIA VT8500 SoC Realtime Clock Driver (RTC)");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:vt8500-rtc");
+MODULE_DEVICE_TABLE(of, vt8500_rtc_ids);
-- 
1.7.2.5

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