2013/4/5 Ulf Hansson :
> On 25 March 2013 16:27, Kevin Liu wrote:
>> 2013/3/25 Ulf Hansson :
>>> On 22 March 2013 16:27, Kevin Liu wrote:
2013/3/22 Ulf Hansson :
> On 22 March 2013 08:42, Huang Changming-R66093
> wrote:
>>
>> :
>>> >> >> Jerry,
>>> >> >>
>>> >>
On 25 March 2013 16:27, Kevin Liu wrote:
> 2013/3/25 Ulf Hansson :
>> On 22 March 2013 16:27, Kevin Liu wrote:
>>> 2013/3/22 Ulf Hansson :
On 22 March 2013 08:42, Huang Changming-R66093
wrote:
>
> :
>> >> >> Jerry,
>> >> >>
>> >> >> Function _mmc_detect_card_remove
2013/3/25 Ulf Hansson :
> On 22 March 2013 16:27, Kevin Liu wrote:
>> 2013/3/22 Ulf Hansson :
>>> On 22 March 2013 08:42, Huang Changming-R66093 wrote:
:
> >> >> Jerry,
> >> >>
> >> >> Function _mmc_detect_card_removed should only be called when card
> >> >> insert/remov
On 22 March 2013 16:27, Kevin Liu wrote:
> 2013/3/22 Ulf Hansson :
>> On 22 March 2013 08:42, Huang Changming-R66093 wrote:
>>>
>>> :
>> >> Jerry,
>> >>
>> >> Function _mmc_detect_card_removed should only be called when card
>> >> insert/removal or i/o error occur unless POLLI
2013/3/22 Ulf Hansson :
> On 22 March 2013 08:42, Huang Changming-R66093 wrote:
>>
>> :
>>> >> >> Jerry,
>>> >> >>
>>> >> >> Function _mmc_detect_card_removed should only be called when card
>>> >> >> insert/removal or i/o error occur unless POLLING is used(called
>>> >> >> once per second). So it
On 22 March 2013 09:35, Ulf Hansson wrote:
> On 22 March 2013 08:42, Huang Changming-R66093 wrote:
>>
>> :
>>> >> >> Jerry,
>>> >> >>
>>> >> >> Function _mmc_detect_card_removed should only be called when card
>>> >> >> insert/removal or i/o error occur unless POLLING is used(called
>>> >> >> onc
On 22 March 2013 08:42, Huang Changming-R66093 wrote:
>
> :
>> >> >> Jerry,
>> >> >>
>> >> >> Function _mmc_detect_card_removed should only be called when card
>> >> >> insert/removal or i/o error occur unless POLLING is used(called
>> >> >> once per second). So it should _not_ impact performance
:
> >> >> Jerry,
> >> >>
> >> >> Function _mmc_detect_card_removed should only be called when card
> >> >> insert/removal or i/o error occur unless POLLING is used(called
> >> >> once per second). So it should _not_ impact performance much.
> >> > [jerry]
> >> > No, your understanding is wrong.
>
ux-mmc@vger.kernel.org; Chris Ball; Ulf Hansson
>> Subject: Re: [PATCH 1/3i v6] MMC/SD: Add callback function to detect card
>>
>> 2013/3/22 Huang Changming-R66093 :
>> >> Jerry,
>> >>
>> >> Function _mmc_detect_card_removed should only be called w
: [PATCH 1/3i v6] MMC/SD: Add callback function to detect card
>
> 2013/3/22 Huang Changming-R66093 :
> >> Jerry,
> >>
> >> Function _mmc_detect_card_removed should only be called when card
> >> insert/removal or i/o error occur unless POLLING is used(call
2013/3/22 Huang Changming-R66093 :
>> Jerry,
>>
>> Function _mmc_detect_card_removed should only be called when card
>> insert/removal or i/o error occur unless POLLING is used(called once per
>> second). So it should _not_ impact performance much.
> [jerry]
> No, your understanding is wrong.
> Fun
t; To: Huang Changming-R66093
> Cc: Ulf Hansson; linux-mmc@vger.kernel.org; Chris Ball
> Subject: Re: [PATCH 1/3i v6] MMC/SD: Add callback function to detect card
>
> Hi Jerry,
>
> Well, i didn't know which SoC you used and how do your controller detect
> the ca
om: Ulf Hansson [mailto:ulf.hans...@linaro.org]
> >> Sent: Wednesday, March 20, 2013 5:29 PM
> >> To: Huang Changming-R66093
> >> Cc: linux-mmc@vger.kernel.org; Chris Ball
> >> Subject: Re: [PATCH 1/3i v6] MMC/SD: Add callback function to detect
> >> card
> &
013 1:44 PM
>> To: Huang Changming-R66093
>> Cc: Ulf Hansson; linux-mmc@vger.kernel.org; Chris Ball
>> Subject: Re: [PATCH 1/3i v6] MMC/SD: Add callback function to detect card
>>
>> Hi,
>>
>> As my understanding, You means that controller is sending CMD13 to detect
> Jerry Huang
> >
> >
> >> -Original Message-
> >> From: Ulf Hansson [mailto:ulf.hans...@linaro.org]
> >> Sent: Wednesday, March 20, 2013 5:29 PM
> >> To: Huang Changming-R66093
> >> Cc: linux-mmc@vger.kernel.org; Chris Ball
>
5:29 PM
>> To: Huang Changming-R66093
>> Cc: linux-mmc@vger.kernel.org; Chris Ball
>> Subject: Re: [PATCH 1/3i v6] MMC/SD: Add callback function to detect card
>>
>> On 20 March 2013 10:04, Huang Changming-R66093
>> wrote:
>>> They have different function,
]
>> Sent: Wednesday, March 20, 2013 5:29 PM
>> To: Huang Changming-R66093
>> Cc: linux-mmc@vger.kernel.org; Chris Ball
>> Subject: Re: [PATCH 1/3i v6] MMC/SD: Add callback function to detect card
>>
>> On 20 March 2013 10:04, Huang Changming-R66093
>> wrote:
>&
rom: Ulf Hansson [mailto:ulf.hans...@linaro.org]
> Sent: Wednesday, March 20, 2013 5:29 PM
> To: Huang Changming-R66093
> Cc: linux-mmc@vger.kernel.org; Chris Ball
> Subject: Re: [PATCH 1/3i v6] MMC/SD: Add callback function to detect card
>
> On 20 March 2013 10:04, Huang Changming-R66093
can base on this patch.
>
> Best Regards
> Jerry Huang
>
>
>> -Original Message-
>> From: Ulf Hansson [mailto:ulf.hans...@linaro.org]
>> Sent: Wednesday, March 20, 2013 4:43 PM
>> To: Huang Changming-R66093
>> Cc: linux-mmc@vger.kernel.org; Chris Bal
ade.
Maybe Kevin can base on this patch.
Best Regards
Jerry Huang
> -Original Message-
> From: Ulf Hansson [mailto:ulf.hans...@linaro.org]
> Sent: Wednesday, March 20, 2013 4:43 PM
> To: Huang Changming-R66093
> Cc: linux-mmc@vger.kernel.org; Chris Ball
> Subject: Re:
On 20 March 2013 06:41, wrote:
> From: Jerry Huang
>
> In order to check whether the card has been removed, the function
> mmc_send_status() will send command CMD13 to card and ask the card
> to send its status register to sdhc driver, which will generate
> many interrupts repeatedly and make th
From: Jerry Huang
In order to check whether the card has been removed, the function
mmc_send_status() will send command CMD13 to card and ask the card
to send its status register to sdhc driver, which will generate
many interrupts repeatedly and make the system performance bad.
>From the performa
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