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| author | Javier Martinez Canillas <javier@osg.samsung.com> | 2017-02-22 15:14:20 -0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2017-02-22 10:50:09 -0800 |
| commit | 68c97b92c0a0dfdc134564f1f1c04b1c8ed27bba (patch) | |
| tree | 97b3c226ea9ff3342aca0535b829ab7f62f90bcf /drivers/spi/spi-sc18is602.c | |
| parent | 57f22cd29cf1b4ff2aea8505eae2d3ed71ca5de4 (diff) | |
| download | lwn-68c97b92c0a0dfdc134564f1f1c04b1c8ed27bba.tar.gz lwn-68c97b92c0a0dfdc134564f1f1c04b1c8ed27bba.zip | |
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>
Diffstat (limited to 'drivers/spi/spi-sc18is602.c')
| -rw-r--r-- | drivers/spi/spi-sc18is602.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/drivers/spi/spi-sc18is602.c b/drivers/spi/spi-sc18is602.c index f63714ffb62f..52cf0e9189c2 100644 --- a/drivers/spi/spi-sc18is602.c +++ b/drivers/spi/spi-sc18is602.c @@ -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, |