linux-kernel - Re: [PATCH] mmc: dw_mmc: Add the function call for board-specific initialization.

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Date:	Thu, 30 Jun 2011 17:20:47 +0900
From:	Jaehoon Chung <jh80.chung@...sung.com>
To:	James Hogan <james@...anarts.com>
Cc:	Jaehoon Chung <jh80.chung@...sung.com>,
	Seungwon Jeon <tgih.jun@...sung.com>,
	linux-mmc@...r.kernel.org, cjb@...top.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mmc: dw_mmc: Add the function call for board-specific
 initialization.

Hi James

James Hogan wrote:
> On 30 June 2011 07:33, Jaehoon Chung <jh80.chung@...sung.com> wrote:
>> Hi Mr.Jeon
>>
>> This patch is the compiler error.
>>
>> didn't find host->card_work..
>>
>> do you want this
>> queue_work(dw_mci_card_workqueue, &slot->host->card_work); ?
> 
> I think the patch is based on mmc-next, which has the following commit:
> 35ba9d8 mmc: dw_mmc: convert card tasklet to workqueue

I also tested this patch based on mmc-next.
But my mean is that there is not host structure in dw_mci_detect_interrupt().

drivers/mmc/host/dw_mmc.c: In function 'dw_mci_detect_interrupt':
drivers/mmc/host/dw_mmc.c:1592: error: 'host' undeclared (first use in this function)
drivers/mmc/host/dw_mmc.c:1592: error: (Each undeclared identifier is reported only once
drivers/mmc/host/dw_mmc.c:1592: error: for each function it appears in.)
drivers/mmc/host/dw_mmc.c:1590: warning: unused variable 'slot'
make[3]: *** [drivers/mmc/host/dw_mmc.o] Error 1
make[2]: *** [drivers/mmc/host] Error 2

Did you really compile fine?

Regards,
Jaehoon Chung

> 
> Cheers
> James
> 
>>
>> Regards,
>> Jaehoon Chung
>>
>>
>> Seungwon Jeon wrote:
>>> Need to call init() function of dw_mci_board.
>>> It seems to be omitted to call this function.
>>>
>>> Signed-off-by: Seungwon Jeon <tgih.jun@...sung.com>
>>> ---
>>>  drivers/mmc/host/dw_mmc.c |   11 +++++++++++
>>>  1 files changed, 11 insertions(+), 0 deletions(-)
>>>
>>> diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
>>> index a524416..073c420 100644
>>> --- a/drivers/mmc/host/dw_mmc.c
>>> +++ b/drivers/mmc/host/dw_mmc.c
>>> @@ -1585,6 +1585,15 @@ static void dw_mci_work_routine_card(struct work_struct *work)
>>>       }
>>>  }
>>>
>>> +static irqreturn_t dw_mci_detect_interrupt(int irq, void *dev_id)
>>> +{
>>> +     struct dw_mci_slot *slot = dev_id;
>>> +
>>> +     queue_work(dw_mci_card_workqueue, &host->card_work);
>>> +
>>> +     return IRQ_HANDLED;
>>> +}
>>> +
>>>  static int __init dw_mci_init_slot(struct dw_mci *host, unsigned int id)
>>>  {
>>>       struct mmc_host *mmc;
>>> @@ -1657,6 +1666,8 @@ static int __init dw_mci_init_slot(struct dw_mci *host, unsigned int id)
>>>       } else
>>>               regulator_enable(host->vmmc);
>>>
>>> +     host->pdata->init(id, dw_mci_detect_interrupt, host);
>>> +
>>>       if (dw_mci_get_cd(mmc))
>>>               set_bit(DW_MMC_CARD_PRESENT, &slot->flags);
>>>       else
>>> --
>>> 1.7.0.4
>>>
>>> --
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>> --
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>>
> 
> 
> 

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