diff mbox

[1/2] mmc: mediatek: Fix module autoload

Message ID 1476720825-30442-1-git-send-email-javier@osg.samsung.com (mailing list archive)
State New, archived
Headers show

Commit Message

Javier Martinez Canillas Oct. 17, 2016, 4:13 p.m. UTC
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/mmc/host/mtk-sd.ko | grep alias
$

After this patch:

$ modinfo drivers/mmc/host/mtk-sd.ko | grep alias
alias:          of:N*T*Cmediatek,mt8135-mmcC*
alias:          of:N*T*Cmediatek,mt8135-mmc

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

 drivers/mmc/host/mtk-sd.c | 1 +
 1 file changed, 1 insertion(+)

Comments

Ulf Hansson Oct. 21, 2016, 8:22 a.m. UTC | #1
On 17 October 2016 at 18:13, Javier Martinez Canillas
<javier@osg.samsung.com> 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/mmc/host/mtk-sd.ko | grep alias
> $
>
> After this patch:
>
> $ modinfo drivers/mmc/host/mtk-sd.ko | grep alias
> alias:          of:N*T*Cmediatek,mt8135-mmcC*
> alias:          of:N*T*Cmediatek,mt8135-mmc
>
> Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>

Thanks, applied for next!

Kind regards
Uffe

> ---
>
>  drivers/mmc/host/mtk-sd.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c
> index 84e9afcb5c09..86af0b199a54 100644
> --- a/drivers/mmc/host/mtk-sd.c
> +++ b/drivers/mmc/host/mtk-sd.c
> @@ -1713,6 +1713,7 @@ static const struct of_device_id msdc_of_ids[] = {
>         {   .compatible = "mediatek,mt8135-mmc", },
>         {}
>  };
> +MODULE_DEVICE_TABLE(of, msdc_of_ids);
>
>  static struct platform_driver mt_msdc_driver = {
>         .probe = msdc_drv_probe,
> --
> 2.7.4
>
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diff mbox

Patch

diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c
index 84e9afcb5c09..86af0b199a54 100644
--- a/drivers/mmc/host/mtk-sd.c
+++ b/drivers/mmc/host/mtk-sd.c
@@ -1713,6 +1713,7 @@  static const struct of_device_id msdc_of_ids[] = {
 	{   .compatible = "mediatek,mt8135-mmc", },
 	{}
 };
+MODULE_DEVICE_TABLE(of, msdc_of_ids);
 
 static struct platform_driver mt_msdc_driver = {
 	.probe = msdc_drv_probe,