rtc: mxc_rtc: remove cpu_is_xxx by using platform_device_id

It changes the driver to use platform_device_id rather than cpu_is_xxx
to determine the controller type, and updates the platform code
accordingly.

As the result, mach/hardware.h inclusion gets removed from the driver.

Signed-off-by: Shawn Guo <[email protected]>
Acked-by: Sascha Hauer <[email protected]>
Acked-by: Arnd Bergmann <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: [email protected]
This commit is contained in:
Shawn Guo 2012-09-15 14:26:14 +08:00
commit bb1d34a20d
6 changed files with 40 additions and 10 deletions

View file

@ -17,8 +17,6 @@
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <mach/hardware.h>
#define RTC_INPUT_CLK_32768HZ (0x00 << 5)
#define RTC_INPUT_CLK_32000HZ (0x01 << 5)
#define RTC_INPUT_CLK_38400HZ (0x02 << 5)
@ -72,14 +70,38 @@ static const u32 PIE_BIT_DEF[MAX_PIE_NUM][2] = {
#define RTC_TEST2 0x2C /* 32bit rtc test reg 2 */
#define RTC_TEST3 0x30 /* 32bit rtc test reg 3 */
enum imx_rtc_type {
IMX1_RTC,
IMX21_RTC,
};
struct rtc_plat_data {
struct rtc_device *rtc;
void __iomem *ioaddr;
int irq;
struct clk *clk;
struct rtc_time g_rtc_alarm;
enum imx_rtc_type devtype;
};
static struct platform_device_id imx_rtc_devtype[] = {
{
.name = "imx1-rtc",
.driver_data = IMX1_RTC,
}, {
.name = "imx21-rtc",
.driver_data = IMX21_RTC,
}, {
/* sentinel */
}
};
MODULE_DEVICE_TABLE(platform, imx_rtc_devtype);
static inline int is_imx1_rtc(struct rtc_plat_data *data)
{
return data->devtype == IMX1_RTC;
}
/*
* This function is used to obtain the RTC time or the alarm value in
* second.
@ -278,10 +300,13 @@ static int mxc_rtc_read_time(struct device *dev, struct rtc_time *tm)
*/
static int mxc_rtc_set_mmss(struct device *dev, unsigned long time)
{
struct platform_device *pdev = to_platform_device(dev);
struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
/*
* TTC_DAYR register is 9-bit in MX1 SoC, save time and day of year only
*/
if (cpu_is_mx1()) {
if (is_imx1_rtc(pdata)) {
struct rtc_time tm;
rtc_time_to_tm(time, &tm);
@ -360,6 +385,8 @@ static int __devinit mxc_rtc_probe(struct platform_device *pdev)
if (!pdata)
return -ENOMEM;
pdata->devtype = pdev->id_entry->driver_data;
if (!devm_request_mem_region(&pdev->dev, res->start,
resource_size(res), pdev->name))
return -EBUSY;
@ -480,6 +507,7 @@ static struct platform_driver mxc_rtc_driver = {
#endif
.owner = THIS_MODULE,
},
.id_table = imx_rtc_devtype,
.probe = mxc_rtc_probe,
.remove = __devexit_p(mxc_rtc_remove),
};