diff mbox

[2/2] mmc: sdhci-of-at91: Fix module autoload

Message ID 1476720825-30442-2-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/sdhci-of-at91.ko | grep alias
$

After this patch:

$ modinfo drivers/mmc/host/sdhci-of-at91.ko | grep alias
alias:          of:N*T*Catmel,sama5d2-sdhciC*
alias:          of:N*T*Catmel,sama5d2-sdhci

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

 drivers/mmc/host/sdhci-of-at91.c | 1 +
 1 file changed, 1 insertion(+)

Comments

Ludovic Desroches Oct. 21, 2016, 6:48 a.m. UTC | #1
On Mon, Oct 17, 2016 at 01:13:45PM -0300, 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/mmc/host/sdhci-of-at91.ko | grep alias
> $
> 
> After this patch:
> 
> $ modinfo drivers/mmc/host/sdhci-of-at91.ko | grep alias
> alias:          of:N*T*Catmel,sama5d2-sdhciC*
> alias:          of:N*T*Catmel,sama5d2-sdhci
> 
> Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>

Thanks
> ---
> 
>  drivers/mmc/host/sdhci-of-at91.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/mmc/host/sdhci-of-at91.c b/drivers/mmc/host/sdhci-of-at91.c
> index a9b7fc06c434..2f9ad213377a 100644
> --- a/drivers/mmc/host/sdhci-of-at91.c
> +++ b/drivers/mmc/host/sdhci-of-at91.c
> @@ -100,6 +100,7 @@ static const struct of_device_id sdhci_at91_dt_match[] = {
>  	{ .compatible = "atmel,sama5d2-sdhci", .data = &soc_data_sama5d2 },
>  	{}
>  };
> +MODULE_DEVICE_TABLE(of, sdhci_at91_dt_match);
>  
>  #ifdef CONFIG_PM
>  static int sdhci_at91_runtime_suspend(struct device *dev)
> -- 
> 2.7.4
> 
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Adrian Hunter Oct. 21, 2016, 7:23 a.m. UTC | #2
On 21/10/16 09:48, Ludovic Desroches wrote:
> On Mon, Oct 17, 2016 at 01:13:45PM -0300, 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/mmc/host/sdhci-of-at91.ko | grep alias
>> $
>>
>> After this patch:
>>
>> $ modinfo drivers/mmc/host/sdhci-of-at91.ko | grep alias
>> alias:          of:N*T*Catmel,sama5d2-sdhciC*
>> alias:          of:N*T*Catmel,sama5d2-sdhci
>>
>> Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
> Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>

Acked-by: Adrian Hunter <adrian.hunter@intel.com>

> 
> Thanks
>> ---
>>
>>  drivers/mmc/host/sdhci-of-at91.c | 1 +
>>  1 file changed, 1 insertion(+)
>>
>> diff --git a/drivers/mmc/host/sdhci-of-at91.c b/drivers/mmc/host/sdhci-of-at91.c
>> index a9b7fc06c434..2f9ad213377a 100644
>> --- a/drivers/mmc/host/sdhci-of-at91.c
>> +++ b/drivers/mmc/host/sdhci-of-at91.c
>> @@ -100,6 +100,7 @@ static const struct of_device_id sdhci_at91_dt_match[] = {
>>  	{ .compatible = "atmel,sama5d2-sdhci", .data = &soc_data_sama5d2 },
>>  	{}
>>  };
>> +MODULE_DEVICE_TABLE(of, sdhci_at91_dt_match);
>>  
>>  #ifdef CONFIG_PM
>>  static int sdhci_at91_runtime_suspend(struct device *dev)
>> -- 
>> 2.7.4
>>
> 

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Ulf Hansson Oct. 21, 2016, 8:21 a.m. UTC | #3
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/sdhci-of-at91.ko | grep alias
> $
>
> After this patch:
>
> $ modinfo drivers/mmc/host/sdhci-of-at91.ko | grep alias
> alias:          of:N*T*Catmel,sama5d2-sdhciC*
> alias:          of:N*T*Catmel,sama5d2-sdhci
>
> Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>

Thanks, applied for next!

Kind regards
Uffe

> ---
>
>  drivers/mmc/host/sdhci-of-at91.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/mmc/host/sdhci-of-at91.c b/drivers/mmc/host/sdhci-of-at91.c
> index a9b7fc06c434..2f9ad213377a 100644
> --- a/drivers/mmc/host/sdhci-of-at91.c
> +++ b/drivers/mmc/host/sdhci-of-at91.c
> @@ -100,6 +100,7 @@ static const struct of_device_id sdhci_at91_dt_match[] = {
>         { .compatible = "atmel,sama5d2-sdhci", .data = &soc_data_sama5d2 },
>         {}
>  };
> +MODULE_DEVICE_TABLE(of, sdhci_at91_dt_match);
>
>  #ifdef CONFIG_PM
>  static int sdhci_at91_runtime_suspend(struct device *dev)
> --
> 2.7.4
>
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diff mbox

Patch

diff --git a/drivers/mmc/host/sdhci-of-at91.c b/drivers/mmc/host/sdhci-of-at91.c
index a9b7fc06c434..2f9ad213377a 100644
--- a/drivers/mmc/host/sdhci-of-at91.c
+++ b/drivers/mmc/host/sdhci-of-at91.c
@@ -100,6 +100,7 @@  static const struct of_device_id sdhci_at91_dt_match[] = {
 	{ .compatible = "atmel,sama5d2-sdhci", .data = &soc_data_sama5d2 },
 	{}
 };
+MODULE_DEVICE_TABLE(of, sdhci_at91_dt_match);
 
 #ifdef CONFIG_PM
 static int sdhci_at91_runtime_suspend(struct device *dev)