diff mbox

[PATCHv2,2/3] mmc: dw_mmc: use the __mmc_of_parse to parse the slot node

Message ID 1401104107-17651-3-git-send-email-jh80.chung@samsung.com (mailing list archive)
State New, archived
Headers show

Commit Message

Jaehoon Chung May 26, 2014, 11:35 a.m. UTC
dw-mmc controller have the multiple slot.
Then it needs to parse the property for each slot.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
---
Changelog V2:
	- None

 drivers/mmc/host/dw_mmc.c |   25 ++++++-------------------
 1 file changed, 6 insertions(+), 19 deletions(-)

Comments

Seungwon Jeon May 27, 2014, 9:49 a.m. UTC | #1
Hi Jaehoon,

On Mon, May 26, 2014, Jaehoon Chung wrote:
> dw-mmc controller have the multiple slot.
Have -> has?

> Then it needs to parse the property for each slot.
> 
> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
> ---
> Changelog V2:
> 	- None
> 
>  drivers/mmc/host/dw_mmc.c |   25 ++++++-------------------
>  1 file changed, 6 insertions(+), 19 deletions(-)
> 
> diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
> index 1ac227c..d4800f8 100644
> --- a/drivers/mmc/host/dw_mmc.c
> +++ b/drivers/mmc/host/dw_mmc.c
> @@ -1015,12 +1015,11 @@ static int dw_mci_get_cd(struct mmc_host *mmc)
>  {
>  	int present;
>  	struct dw_mci_slot *slot = mmc_priv(mmc);
> -	struct dw_mci_board *brd = slot->host->pdata;
>  	struct dw_mci *host = slot->host;
>  	int gpio_cd = mmc_gpio_get_cd(mmc);
> 
>  	/* Use platform get_cd function, else try onboard card detect */
> -	if (brd->quirks & DW_MCI_QUIRK_BROKEN_CARD_DETECTION)
> +	if (slot->quirks & DW_MCI_QUIRK_BROKEN_CARD_DETECTION)
>  		present = 1;
>  	else if (!IS_ERR_VALUE(gpio_cd))
>  		present = gpio_cd;
> @@ -2010,6 +2009,9 @@ static struct dw_mci_of_slot_quirks {
>  	{
>  		.quirk	= "disable-wp",
>  		.id	= DW_MCI_SLOT_QUIRK_NO_WRITE_PROTECT,
> +	}, {
> +		.quirk	= "broken-cd",
> +		.id	= DW_MCI_QUIRK_BROKEN_CARD_DETECTION,
>  	},
>  };
> 
> @@ -2088,7 +2090,7 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
>  	if (host->pdata->caps2)
>  		mmc->caps2 = host->pdata->caps2;
> 
> -	mmc_of_parse(mmc);
> +	__mmc_of_parse(mmc, dw_mci_of_find_slot_node(host->dev, slot->id));
> 
>  	if (host->pdata->blk_settings) {
>  		mmc->max_segs = host->pdata->blk_settings->max_segs;
> @@ -2231,23 +2233,13 @@ static inline bool dw_mci_ctrl_all_reset(struct dw_mci *host)
>  }
> 
>  #ifdef CONFIG_OF
> -static struct dw_mci_of_quirks {
> -	char *quirk;
> -	int id;
> -} of_quirks[] = {
> -	{
> -		.quirk	= "broken-cd",
> -		.id	= DW_MCI_QUIRK_BROKEN_CARD_DETECTION,
> -	},
> -};
> -
Moving broken-cd to slot_quirks is reasonable.
But I think of_quirks should be kept and we can add right quirks.
In cae of DW_MCI_QUIRK_IDMAC_DTO and DW_MCI_QUIRK_RETRY_DELAY,
we can handle those with dw_mci_of_quirks although we didn't add.

>  static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host)
>  {
>  	struct dw_mci_board *pdata;
>  	struct device *dev = host->dev;
>  	struct device_node *np = dev->of_node;
>  	const struct dw_mci_drv_data *drv_data = host->drv_data;
> -	int idx, ret;
> +	int ret;
>  	u32 clock_frequency;
> 
>  	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
> @@ -2264,11 +2256,6 @@ static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host)
>  		pdata->num_slots = 1;
>  	}
> 
> -	/* get quirks */
> -	for (idx = 0; idx < ARRAY_SIZE(of_quirks); idx++)
> -		if (of_get_property(np, of_quirks[idx].quirk, NULL))
> -			pdata->quirks |= of_quirks[idx].id;
> -
Same as above.

Thanks,
Seungwon Jeon

>  	if (of_property_read_u32(np, "fifo-depth", &pdata->fifo_depth))
>  		dev_info(dev, "fifo-depth property not found, using "
>  				"value of FIFOTH register as default\n");
> --
> 1.7.9.5
> 
> --
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Jaehoon Chung May 27, 2014, 10:07 a.m. UTC | #2
Hi, Seungwon

On 05/27/2014 06:49 PM, Seungwon Jeon wrote:
> Hi Jaehoon,
> 
> On Mon, May 26, 2014, Jaehoon Chung wrote:
>> dw-mmc controller have the multiple slot.
> Have -> has?
Fix it.

> 
>> Then it needs to parse the property for each slot.
>>
>> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
>> ---
>> Changelog V2:
>> 	- None
>>
>>  drivers/mmc/host/dw_mmc.c |   25 ++++++-------------------
>>  1 file changed, 6 insertions(+), 19 deletions(-)
>>
>> diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
>> index 1ac227c..d4800f8 100644
>> --- a/drivers/mmc/host/dw_mmc.c
>> +++ b/drivers/mmc/host/dw_mmc.c
>> @@ -1015,12 +1015,11 @@ static int dw_mci_get_cd(struct mmc_host *mmc)
>>  {
>>  	int present;
>>  	struct dw_mci_slot *slot = mmc_priv(mmc);
>> -	struct dw_mci_board *brd = slot->host->pdata;
>>  	struct dw_mci *host = slot->host;
>>  	int gpio_cd = mmc_gpio_get_cd(mmc);
>>
>>  	/* Use platform get_cd function, else try onboard card detect */
>> -	if (brd->quirks & DW_MCI_QUIRK_BROKEN_CARD_DETECTION)
>> +	if (slot->quirks & DW_MCI_QUIRK_BROKEN_CARD_DETECTION)
>>  		present = 1;
>>  	else if (!IS_ERR_VALUE(gpio_cd))
>>  		present = gpio_cd;
>> @@ -2010,6 +2009,9 @@ static struct dw_mci_of_slot_quirks {
>>  	{
>>  		.quirk	= "disable-wp",
>>  		.id	= DW_MCI_SLOT_QUIRK_NO_WRITE_PROTECT,
>> +	}, {
>> +		.quirk	= "broken-cd",
>> +		.id	= DW_MCI_QUIRK_BROKEN_CARD_DETECTION,
>>  	},
>>  };
>>
>> @@ -2088,7 +2090,7 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
>>  	if (host->pdata->caps2)
>>  		mmc->caps2 = host->pdata->caps2;
>>
>> -	mmc_of_parse(mmc);
>> +	__mmc_of_parse(mmc, dw_mci_of_find_slot_node(host->dev, slot->id));
>>
>>  	if (host->pdata->blk_settings) {
>>  		mmc->max_segs = host->pdata->blk_settings->max_segs;
>> @@ -2231,23 +2233,13 @@ static inline bool dw_mci_ctrl_all_reset(struct dw_mci *host)
>>  }
>>
>>  #ifdef CONFIG_OF
>> -static struct dw_mci_of_quirks {
>> -	char *quirk;
>> -	int id;
>> -} of_quirks[] = {
>> -	{
>> -		.quirk	= "broken-cd",
>> -		.id	= DW_MCI_QUIRK_BROKEN_CARD_DETECTION,
>> -	},
>> -};
>> -
> Moving broken-cd to slot_quirks is reasonable.
> But I think of_quirks should be kept and we can add right quirks.
> In cae of DW_MCI_QUIRK_IDMAC_DTO and DW_MCI_QUIRK_RETRY_DELAY,
> we can handle those with dw_mci_of_quirks although we didn't add.
Ok. 

Best Regards,
Jaehoon Chung
> 
>>  static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host)
>>  {
>>  	struct dw_mci_board *pdata;
>>  	struct device *dev = host->dev;
>>  	struct device_node *np = dev->of_node;
>>  	const struct dw_mci_drv_data *drv_data = host->drv_data;
>> -	int idx, ret;
>> +	int ret;
>>  	u32 clock_frequency;
>>
>>  	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
>> @@ -2264,11 +2256,6 @@ static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host)
>>  		pdata->num_slots = 1;
>>  	}
>>
>> -	/* get quirks */
>> -	for (idx = 0; idx < ARRAY_SIZE(of_quirks); idx++)
>> -		if (of_get_property(np, of_quirks[idx].quirk, NULL))
>> -			pdata->quirks |= of_quirks[idx].id;
>> -
> Same as above.
> 
> Thanks,
> Seungwon Jeon
> 
>>  	if (of_property_read_u32(np, "fifo-depth", &pdata->fifo_depth))
>>  		dev_info(dev, "fifo-depth property not found, using "
>>  				"value of FIFOTH register as default\n");
>> --
>> 1.7.9.5
>>
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 

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diff mbox

Patch

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 1ac227c..d4800f8 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -1015,12 +1015,11 @@  static int dw_mci_get_cd(struct mmc_host *mmc)
 {
 	int present;
 	struct dw_mci_slot *slot = mmc_priv(mmc);
-	struct dw_mci_board *brd = slot->host->pdata;
 	struct dw_mci *host = slot->host;
 	int gpio_cd = mmc_gpio_get_cd(mmc);
 
 	/* Use platform get_cd function, else try onboard card detect */
-	if (brd->quirks & DW_MCI_QUIRK_BROKEN_CARD_DETECTION)
+	if (slot->quirks & DW_MCI_QUIRK_BROKEN_CARD_DETECTION)
 		present = 1;
 	else if (!IS_ERR_VALUE(gpio_cd))
 		present = gpio_cd;
@@ -2010,6 +2009,9 @@  static struct dw_mci_of_slot_quirks {
 	{
 		.quirk	= "disable-wp",
 		.id	= DW_MCI_SLOT_QUIRK_NO_WRITE_PROTECT,
+	}, {
+		.quirk	= "broken-cd",
+		.id	= DW_MCI_QUIRK_BROKEN_CARD_DETECTION,
 	},
 };
 
@@ -2088,7 +2090,7 @@  static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
 	if (host->pdata->caps2)
 		mmc->caps2 = host->pdata->caps2;
 
-	mmc_of_parse(mmc);
+	__mmc_of_parse(mmc, dw_mci_of_find_slot_node(host->dev, slot->id));
 
 	if (host->pdata->blk_settings) {
 		mmc->max_segs = host->pdata->blk_settings->max_segs;
@@ -2231,23 +2233,13 @@  static inline bool dw_mci_ctrl_all_reset(struct dw_mci *host)
 }
 
 #ifdef CONFIG_OF
-static struct dw_mci_of_quirks {
-	char *quirk;
-	int id;
-} of_quirks[] = {
-	{
-		.quirk	= "broken-cd",
-		.id	= DW_MCI_QUIRK_BROKEN_CARD_DETECTION,
-	},
-};
-
 static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host)
 {
 	struct dw_mci_board *pdata;
 	struct device *dev = host->dev;
 	struct device_node *np = dev->of_node;
 	const struct dw_mci_drv_data *drv_data = host->drv_data;
-	int idx, ret;
+	int ret;
 	u32 clock_frequency;
 
 	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
@@ -2264,11 +2256,6 @@  static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host)
 		pdata->num_slots = 1;
 	}
 
-	/* get quirks */
-	for (idx = 0; idx < ARRAY_SIZE(of_quirks); idx++)
-		if (of_get_property(np, of_quirks[idx].quirk, NULL))
-			pdata->quirks |= of_quirks[idx].id;
-
 	if (of_property_read_u32(np, "fifo-depth", &pdata->fifo_depth))
 		dev_info(dev, "fifo-depth property not found, using "
 				"value of FIFOTH register as default\n");