On Mon 02 Jan 06:57 PST 2017, Javier Martinez Canillas wrote:
> 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/tty/serial/msm_serial.ko | grep alias
> $
>
> After this patch:
>
> $ modinfo drivers/tty/serial/msm_serial.ko | grep alias
> alias: of:N*T*Cqcom,msm-uartdmC*
> alias: of:N*T*Cqcom,msm-uartdm
> alias: of:N*T*Cqcom,msm-uartC*
> alias: of:N*T*Cqcom,msm-uart
>
> Signed-off-by: Javier Martinez Canillas <javier@xxxxxxxxxxxxxxx>
Acked-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
Regards,
Bjorn
> ---
>
> drivers/tty/serial/msm_serial.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c
> index 7312e7e01b7e..6788e7532dff 100644
> --- a/drivers/tty/serial/msm_serial.c
> +++ b/drivers/tty/serial/msm_serial.c
> @@ -1809,6 +1809,7 @@ static const struct of_device_id msm_match_table[] = {
> { .compatible = "qcom,msm-uartdm" },
> {}
> };
> +MODULE_DEVICE_TABLE(of, msm_match_table);
>
> static struct platform_driver msm_platform_driver = {
> .remove = msm_serial_remove,
> --
> 2.7.4
>
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