mfd: Export OF module alias information in missing drivers

The I2C core always reports the MODALIAS uevent as "i2c:<client name"
regardless if the driver was matched using the I2C id_table or the
of_match_table. So technically there's no need for a driver to export
the OF table since currently it's not used.

In fact, the I2C device ID table is mandatory for I2C drivers since
a i2c_device_id is passed to the driver's probe function even if the
I2C core used the OF table to match the driver.

And since the I2C core uses different tables, OF-only drivers needs to
have duplicated data that has to be kept in sync and also the dev node
compatible manufacturer prefix is stripped when reporting the MODALIAS.

To avoid the above, the I2C core behavior may be changed in the future
to not require an I2C device table for OF-only drivers and report the
OF module alias. So, it's better to also export the OF table to prevent
breaking module autoloading if that happens.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

diff --git a/drivers/mfd/rt5033.c b/drivers/mfd/rt5033.c
index db395a6c52bc79d80b46c30a78b4f3d2071f6e76..d60f91619c4a5b2377c5ac43fee450228a8594ca 100644 (file)
--- a/drivers/mfd/rt5033.c
+++ b/drivers/mfd/rt5033.c
@@ -124,6 +124,7 @@ static const struct of_device_id rt5033_dt_match[] = {
        { .compatible = "richtek,rt5033", },
        { }
 };
+MODULE_DEVICE_TABLE(of, rt5033_dt_match);
 
 static struct i2c_driver rt5033_driver = {
        .driver = {

diff --git a/drivers/mfd/tps65217.c b/drivers/mfd/tps65217.c
index bc455feb42be9cf2500f89f22b318566a33b5f00..55add0453ae9ba642b8570f9f003007857607eda 100644 (file)
--- a/drivers/mfd/tps65217.c
+++ b/drivers/mfd/tps65217.c
@@ -156,6 +156,7 @@ static const struct of_device_id tps65217_of_match[] = {
        { .compatible = "ti,tps65217", .data = (void *)TPS65217 },
        { /* sentinel */ },
 };
+MODULE_DEVICE_TABLE(of, tps65217_of_match);
 
 static int tps65217_probe(struct i2c_client *client,
                                const struct i2c_device_id *ids)

diff --git a/drivers/mfd/tps65218.c b/drivers/mfd/tps65218.c
index cb38d725250f9180fbc073821a960e118a7ee562..80b9dc363cd855c38a7779d8b52d5018c4e74b77 100644 (file)
--- a/drivers/mfd/tps65218.c
+++ b/drivers/mfd/tps65218.c
@@ -211,6 +211,7 @@ static const struct of_device_id of_tps65218_match_table[] = {
        { .compatible = "ti,tps65218", },
        {}
 };
+MODULE_DEVICE_TABLE(of, of_tps65218_match_table);
 
 static int tps65218_probe(struct i2c_client *client,
                                const struct i2c_device_id *ids)