diff options
| author | Stuart Longland <stuartl@vrt.com.au> | 2014-08-08 14:20:20 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-08 15:57:20 -0700 |
| commit | db04d6284e2a626791e959dc71e922e8570440b6 (patch) | |
| tree | fef0fb647928560bc0edf87c33eade6af4cf273b | |
| parent | ede3e9d47cca565d96613bea9213eccf91c7a2a7 (diff) | |
| download | lwn-db04d6284e2a626791e959dc71e922e8570440b6.tar.gz lwn-db04d6284e2a626791e959dc71e922e8570440b6.zip | |
drivers/rtc/rtc-isl12022.c: device tree support
Add support for configuring the ISL12022 real-time clock via the Device
tree framework. This is based on what I've seen in the related ISL12057
driver, it has been tested and works on a Technologic Systems TS-7670
device which uses a ISL12020 RTC device, my device tree looks like this:
apbx@80040000 {
i2c0: i2c@80058000 {
pinctrl-names = "default";
pinctrl-0 = <&i2c0_pins_a>;
clock-frequency = <400000>;
status = "okay";
isl12022@0x6f {
compatible = "isl,isl12022";
reg = <0x6f>;
};
};
... etc
};
Signed-off-by: Stuart Longland <stuartl@vrt.com.au>
Cc: Roman Fietze <roman.fietze@telemotive.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | drivers/rtc/rtc-isl12022.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/rtc/rtc-isl12022.c b/drivers/rtc/rtc-isl12022.c index 03b891129428..aa55f081c505 100644 --- a/drivers/rtc/rtc-isl12022.c +++ b/drivers/rtc/rtc-isl12022.c @@ -17,6 +17,8 @@ #include <linux/slab.h> #include <linux/module.h> #include <linux/err.h> +#include <linux/of.h> +#include <linux/of_device.h> #define DRV_VERSION "0.1" @@ -271,6 +273,13 @@ static int isl12022_probe(struct i2c_client *client, return PTR_ERR_OR_ZERO(isl12022->rtc); } +#ifdef CONFIG_OF +static struct of_device_id isl12022_dt_match[] = { + { .compatible = "isl,isl12022" }, + { }, +}; +#endif + static const struct i2c_device_id isl12022_id[] = { { "isl12022", 0 }, { } @@ -280,6 +289,9 @@ MODULE_DEVICE_TABLE(i2c, isl12022_id); static struct i2c_driver isl12022_driver = { .driver = { .name = "rtc-isl12022", +#ifdef CONFIG_OF + .of_match_table = of_match_ptr(isl12022_dt_match), +#endif }, .probe = isl12022_probe, .id_table = isl12022_id, |