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authorShawn Guo <shawn.guo@linaro.org>2012-09-15 14:26:14 +0800
committerShawn Guo <shawn.guo@linaro.org>2012-10-15 10:03:16 +0800
commitbb1d34a20d537e2f2342db8b5918512f05b0f852 (patch)
treef98a0ccfd5a959a4638715df601cdd9561765771 /drivers/rtc/rtc-mxc.c
parent4d62435f0601ecec379fdc48749a10353fee8217 (diff)
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 <shawn.guo@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: rtc-linux@googlegroups.com
Diffstat (limited to 'drivers/rtc/rtc-mxc.c')
-rw-r--r--drivers/rtc/rtc-mxc.c34
1 files changed, 31 insertions, 3 deletions
diff --git a/drivers/rtc/rtc-mxc.c b/drivers/rtc/rtc-mxc.c
index cd0106293a49..7304139934aa 100644
--- a/drivers/rtc/rtc-mxc.c
+++ b/drivers/rtc/rtc-mxc.c
@@ -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),
};