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 <[email protected]>
>> ---
>> 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
>>
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