[PATCH/RFC v2] ARM: amba: Remove AMBA level regulator support

[Rabin Vincent]

On Mon, Apr 2, 2012 at 00:52, Linus Walleij <linus.walleij at linaro.org> wrote:
> On Sun, Apr 1, 2012 at 8:58 PM, Mark Brown
> <broonie at opensource.wolfsonmicro.com> wrote:
>
>> diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c
>> index ebc1e86..5be3248 100644
>> --- a/drivers/mfd/db8500-prcmu.c
>> +++ b/drivers/mfd/db8500-prcmu.c
>> @@ -2788,6 +2788,7 @@ static struct regulator_init_data db8500_regulators[DB8500_NUM_REGULATORS] = {
>>                .constraints = {
>>                        .name = "db8500-vape",
>>                        .valid_ops_mask = REGULATOR_CHANGE_STATUS,
>> +                       .always_on = true,
>>                },
>>                .consumer_supplies = db8500_vape_consumers,
>>                .num_consumer_supplies = ARRAY_SIZE(db8500_vape_consumers),
>
> Combined with the PL022 patch this causes a power regression since
> the PL022 is hereafter always on.

How can there be a "power regression" here?  This is the only user of
the vcore regulator, and, apart from the fact that its disable routine
only decrements an essentialy write-only variable, it is shared which
several devices which already never disable it.