Commit 7f8a5892 authored by Emil Bartczak's avatar Emil Bartczak Committed by Alexandre Belloni
Browse files

rtc: mcp795: add devicetree support 



Add device tree support to the rtc-mcp795 driver.

Signed-off-by: default avatarEmil Bartczak <emilbart@gmail.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@free-electrons.com>
parent 15c6ea6f

Documentation/devicetree/bindings/rtc/maxim,mcp795.txt

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+11 −0
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* Maxim MCP795		SPI Serial Real-Time Clock



Required properties:

- compatible: Should contain "maxim,mcp795".

- reg: SPI address for chip



Example:

	mcp795: rtc@0 {

		compatible = "maxim,mcp795";

		reg = <0>;

	};

drivers/rtc/rtc-mcp795.c

+10 −0
Original line number Diff line number Diff line
@@ -20,6 +20,7 @@ 
#include <linux/printk.h>

#include <linux/spi/spi.h>

#include <linux/rtc.h>

#include <linux/of.h>



/* MCP795 Instructions, see datasheet table 3-1 */

#define MCP795_EEREAD	0x03
@@ -183,9 +184,18 @@ static int mcp795_probe(struct spi_device *spi) 
	return 0;

}



#ifdef CONFIG_OF

static const struct of_device_id mcp795_of_match[] = {

	{ .compatible = "maxim,mcp795" },

	{ }

};

MODULE_DEVICE_TABLE(of, mcp795_of_match);

#endif



static struct spi_driver mcp795_driver = {

		.driver = {

				.name = "rtc-mcp795",

				.of_match_table = of_match_ptr(mcp795_of_match),

		},

		.probe = mcp795_probe,

};