Commit cec13c26 authored by Philippe Reynes's avatar Philippe Reynes Committed by Shawn Guo
Browse files

rtc: mxc: add support of device tree 



Add device tree support for the mxc rtc driver.

Acked-by: default avatarAlexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: default avatarPhilippe Reynes <tremyfr@gmail.com>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent 61186371

drivers/rtc/rtc-mxc.c

+18 −1
Original line number Diff line number Diff line
@@ -16,6 +16,8 @@ 
#include <linux/interrupt.h>

#include <linux/platform_device.h>

#include <linux/clk.h>

#include <linux/of.h>

#include <linux/of_device.h>



#define RTC_INPUT_CLK_32768HZ	(0x00 << 5)

#define RTC_INPUT_CLK_32000HZ	(0x01 << 5)
@@ -98,6 +100,15 @@ static const struct platform_device_id imx_rtc_devtype[] = { 
};

MODULE_DEVICE_TABLE(platform, imx_rtc_devtype);



#ifdef CONFIG_OF

static const struct of_device_id imx_rtc_dt_ids[] = {

	{ .compatible = "fsl,imx1-rtc", .data = (const void *)IMX1_RTC },

	{ .compatible = "fsl,imx21-rtc", .data = (const void *)IMX21_RTC },

	{}

};

MODULE_DEVICE_TABLE(of, imx_rtc_dt_ids);

#endif



static inline int is_imx1_rtc(struct rtc_plat_data *data)

{

	return data->devtype == IMX1_RTC;
@@ -362,11 +373,16 @@ static int mxc_rtc_probe(struct platform_device *pdev) 
	u32 reg;

	unsigned long rate;

	int ret;

	const struct of_device_id *of_id;



	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);

	if (!pdata)

		return -ENOMEM;



	of_id = of_match_device(imx_rtc_dt_ids, &pdev->dev);

	if (of_id)

		pdata->devtype = (enum imx_rtc_type)of_id->data;

	else

		pdata->devtype = pdev->id_entry->driver_data;



	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -488,6 +504,7 @@ static SIMPLE_DEV_PM_OPS(mxc_rtc_pm_ops, mxc_rtc_suspend, mxc_rtc_resume); 
static struct platform_driver mxc_rtc_driver = {

	.driver = {

		   .name	= "mxc_rtc",

		   .of_match_table = of_match_ptr(imx_rtc_dt_ids),

		   .pm		= &mxc_rtc_pm_ops,

	},

	.id_table = imx_rtc_devtype,