[PATCH RFC 07/31] mmc: sdhci: push card_tasklet into threaded irq handler

Viresh Kumar viresh.kumar at linaro.org
Wed Feb 19 04:48:08 EST 2014


On 19 February 2014 15:13, Russell King - ARM Linux
<linux at arm.linux.org.uk> wrote:
> On Wed, Feb 19, 2014 at 11:43:19AM +0530, Viresh Kumar wrote:
>> Adding ST people as well who have access to boards and are working on SPEAr.
>>
>> On 18 February 2014 23:27, Russell King - ARM Linux
>> <linux at arm.linux.org.uk> wrote:
>> > 1) You're controlling the card power GPIO via the insertion/removal
>> >    interrupt handler?  What's wrong with using a vmmc regulator for
>> >    that, which will be controlled via the MMC subsystem as required?
>>
>> Haven't explored that earlier.. Maybe its possible but no idea.
>> The requirements were like this:
>> - We may or maynot need a GPIO for controlling power
>> - If we need it, we may need to disable/enable power with card removal/
>> insertion Or we may need to keep it enabled for ever..
>
> So how is this any different from any other system which controls power to
> the MMC/SD socket?

I am not claiming it to be different. I am just saying these were the
requirements
and I am not sure if they were satisfied with vmmc regulator. It might
be exactly
same in all other platforms.



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