If the driver is built as a module, I2C module alias information is not
filled so the module won't be autoloaded if the device isn't registered
over ACPI. Export the I2C device table alias with MODULE_DEVICE_TABLE()
macro so the information is exported in the module.
Before this patch:
$ modinfo drivers/leds/leds-lp3952.ko | grep alias
alias: acpi*:TXNW3952:*
After this patch:
$ modinfo drivers/leds/leds-lp3952.ko | grep alias
alias: i2c:lp3952
alias: acpi*:TXNW3952:*
Signed-off-by: Javier Martinez Canillas <javier@xxxxxxxxxxxxxxx>
---
drivers/leds/leds-lp3952.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/leds/leds-lp3952.c b/drivers/leds/leds-lp3952.c
index a73c8ff08530..4847e89883a7 100644
--- a/drivers/leds/leds-lp3952.c
+++ b/drivers/leds/leds-lp3952.c
@@ -274,6 +274,7 @@ static const struct i2c_device_id lp3952_id[] = {
{LP3952_NAME, 0},
{}
};
+MODULE_DEVICE_TABLE(i2c, lp3952_id);
#ifdef CONFIG_ACPI
static const struct acpi_device_id lp3952_acpi_match[] = {
--
2.7.4
--
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