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Commit 0108c4ff authored by Viresh Kumar's avatar Viresh Kumar Committed by Linus Torvalds
Browse files

rtc/spear: add Device Tree probing capability 



SPEAr platforms now support DT and so must convert all drivers support DT.
This patch adds DT probing support for rtc and updates its documentation
too.

Signed-off-by: default avatarViresh Kumar <viresh.kumar@st.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Rajeev Kumar <rajeev-dlh.kumar@st.com>
Cc: Rob Herring <robherring2@gmail.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 7c203422

Documentation/devicetree/bindings/rtc/spear-rtc.txt

0 → 100644
+17 −0
Original line number Diff line number Diff line 
* SPEAr RTC



Required properties:

- compatible : "st,spear600-rtc"

- reg : Address range of the rtc registers

- interrupt-parent: Should be the phandle for the interrupt controller

  that services interrupts for this device

- interrupt: Should contain the rtc interrupt number



Example:



	rtc@fc000000 {

		compatible = "st,spear600-rtc";

		reg = <0xfc000000 0x1000>;

		interrupt-parent = <&vic1>;

		interrupts = <12>;

	};

drivers/rtc/rtc-spear.c

+10 −0
Original line number Diff line number Diff line
@@ -16,6 +16,7 @@ 
#include <linux/io.h>

#include <linux/irq.h>

#include <linux/module.h>

#include <linux/of.h>

#include <linux/platform_device.h>

#include <linux/rtc.h>

#include <linux/slab.h>
@@ -519,6 +520,14 @@ static void spear_rtc_shutdown(struct platform_device *pdev) 
	clk_disable(config->clk);

}



#ifdef CONFIG_OF

static const struct of_device_id spear_rtc_id_table[] = {

	{ .compatible = "st,spear600-rtc" },

	{}

};

MODULE_DEVICE_TABLE(of, spear_rtc_id_table);

#endif



static struct platform_driver spear_rtc_driver = {

	.probe = spear_rtc_probe,

	.remove = __devexit_p(spear_rtc_remove),
@@ -527,6 +536,7 @@ static struct platform_driver spear_rtc_driver = { 
	.shutdown = spear_rtc_shutdown,

	.driver = {

		.name = "rtc-spear",

		.of_match_table = of_match_ptr(spear_rtc_id_table),

	},

};