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/staging/media/s5p-cec/s5p-cec.ko | grep alias
$
After this patch:
$ modinfo drivers/staging/media/s5p-cec/s5p-cec.ko | grep alias
alias: of:N*T*Csamsung,s5p-cecC*
alias: of:N*T*Csamsung,s5p-cec
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
},
{},
};
+MODULE_DEVICE_TABLE(of, s5p_cec_match);
static struct platform_driver s5p_cec_pdrv = {
.probe = s5p_cec_probe,