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spi: sc18is602: 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: Mark Brown <broonie@kernel.org>
This commit is contained in:
Javier Martinez Canillas 2017-02-22 15:14:20 -03:00 committed by Mark Brown
parent 57f22cd29c
commit 68c97b92c0
1 changed files with 23 additions and 1 deletions
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24
drivers/spi/spi-sc18is602.c
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@ -21,6 +21,7 @@
#include <linux/i2c.h>
#include <linux/delay.h>
#include <linux/pm_runtime.h>
#include <linux/of_device.h>
#include <linux/of.h>
#include <linux/platform_data/sc18is602.h>
#include <linux/gpio/consumer.h>
@ -271,7 +272,10 @@ static int sc18is602_probe(struct i2c_client *client,
hw->dev = dev;
hw->ctrl = 0xff;
hw->id = id->driver_data;
if (client->dev.of_node)
hw->id = (enum chips)of_device_get_match_data(&client->dev);
else
hw->id = id->driver_data;
switch (hw->id) {
case sc18is602:
@ -323,9 +327,27 @@ static const struct i2c_device_id sc18is602_id[] = {
};
MODULE_DEVICE_TABLE(i2c, sc18is602_id);
static const struct of_device_id sc18is602_of_match[] = {
{
.compatible = "nxp,sc18is602",
.data = (void *)sc18is602
},
{
.compatible = "nxp,sc18is602b",
.data = (void *)sc18is602b
},
{
.compatible = "nxp,sc18is603",
.data = (void *)sc18is603
},
{ },
};
MODULE_DEVICE_TABLE(of, sc18is602_of_match);
static struct i2c_driver sc18is602_driver = {
.driver = {
.name = "sc18is602",
.of_match_table = of_match_ptr(sc18is602_of_match),
},
.probe = sc18is602_probe,
.id_table = sc18is602_id,