diff options
| author | Philippe Reynes <tremyfr@gmail.com> | 2015-07-26 23:37:52 +0200 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2015-08-05 20:03:56 +0800 |
| commit | cec13c26e90e53015360c09574a7a2cde8d29495 (patch) | |
| tree | 29cb048867a82c44ec70ca1a7d000305f4530a96 /drivers/rtc/rtc-mxc.c | |
| parent | 61186371570e3ca62585e29e307f7a9c42ab789a (diff) | |
| download | linux-cec13c26e90e53015360c09574a7a2cde8d29495.tar.gz | |
rtc: mxc: add support of device tree
Add device tree support for the mxc rtc driver.
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'drivers/rtc/rtc-mxc.c')
| -rw-r--r-- | drivers/rtc/rtc-mxc.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/drivers/rtc/rtc-mxc.c b/drivers/rtc/rtc-mxc.c index 880d485d5cc13..7bd89d90048f0 100644 --- a/drivers/rtc/rtc-mxc.c +++ b/drivers/rtc/rtc-mxc.c @@ -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; @@ -362,12 +373,17 @@ 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; - pdata->devtype = pdev->id_entry->driver_data; + 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); pdata->ioaddr = devm_ioremap_resource(&pdev->dev, res); @@ -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, |