[PATCH 2/2] gpio: ts4800: Fix module autoload

Javier Martinez Canillas
2016-10-18T20:44:22Z

If the driver is built as a module, autoload won't work because the module
alias information is not filled. So user-space can't match the registered
device with the corresponding module.

Export the module alias information using the MODULE_DEVICE_TABLE() macro.

Before this patch:

$ modinfo drivers/gpio/gpio-ts4800.ko | grep alias
$

After this patch:

$ modinfo drivers/gpio/gpio-ts4800.ko | grep alias
alias: of:N*T*Ctechnologic,ts4800-gpioC*
alias: of:N*T*Ctechnologic,ts4800-gpio

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
---

drivers/gpio/gpio-ts4800.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/gpio/gpio-ts4800.c b/drivers/gpio/gpio-ts4800.c
index 99256115bea5..c2a80b4cbf32 100644
--- a/drivers/gpio/gpio-ts4800.c
+++ b/drivers/gpio/gpio-ts4800.c
@@ -66,6 +66,7 @@ static const struct of_device_id ts4800_gpio_of_match[] = {
{ .compatible = "technologic,ts4800-gpio", },
{},
};
+MODULE_DEVICE_TABLE(of, ts4800_gpio_of_match);

static struct platform_driver ts4800_gpio_driver = {
.driver = {
--
2.7.4