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rtc: rv8803: Add OF device ID table 

The driver doesn't have a struct of_device_id table but supported devices
are registered via Device Trees. This is working on the assumption that a
I2C device registered via OF will always match a legacy I2C device ID and
that the MODALIAS reported will always be of the form i2c:<device>.

But this could change in the future so the correct approach is to have an
OF device ID table if the devices are registered via OF.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
hifive-unleashed-5.1
Javier Martinez Canillas 2017-03-03 11:29:12 -03:00 committed by Alexandre Belloni
parent c1ae3cfa0e
commit 740ad8f43c
1 changed files with 20 additions and 1 deletions
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21
drivers/rtc/rtc-rv8803.c
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@ -18,6 +18,7 @@
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/rtc.h>
#define RV8803_I2C_TRY_COUNT 4
@ -556,7 +557,11 @@ static int rv8803_probe(struct i2c_client *client,
mutex_init(&rv8803->flags_lock);
rv8803->client = client;
rv8803->type = id->driver_data;
if (client->dev.of_node)
rv8803->type = (enum rv8803_type)
of_device_get_match_data(&client->dev);
else
rv8803->type = id->driver_data;
i2c_set_clientdata(client, rv8803);
flags = rv8803_read_reg(client, RV8803_FLAG);
@ -627,9 +632,23 @@ static const struct i2c_device_id rv8803_id[] = {
};
MODULE_DEVICE_TABLE(i2c, rv8803_id);
static const struct of_device_id rv8803_of_match[] = {
{
.compatible = "microcrystal,rv8803",
.data = (void *)rx_8900
},
{
.compatible = "epson,rx8900",
.data = (void *)rx_8900
},
{ }
};
MODULE_DEVICE_TABLE(of, rv8803_of_match);
static struct i2c_driver rv8803_driver = {
.driver = {
.name = "rtc-rv8803",
.of_match_table = of_match_ptr(rv8803_of_match),
},
.probe = rv8803_probe,
.remove = rv8803_remove,