Re: [PATCH v2] power: sequencing: rename pwrseq_power_on/off() to pwrseq_enable/disable()

[Bartosz Golaszewski]

On Fri, 31 Jul 2026 10:43:19 +0200, Loic Poulain
<loic.poulain@xxxxxxxxxxxxxxxx> said:
> On Fri, Jul 31, 2026 at 10:29 AM Bartosz Golaszewski
> <bartosz.golaszewski@xxxxxxxxxxxxxxxx> wrote:
>>
>> The way power sequencing works means that a call to pwrseq_power_on()
>> does not necessarily result in the pwrseq target being powered-on at
>> that time: it may have already been powered on before. Similarly: a call
>> to pwrseq_power_off() does not have to result in an actual powering off
>> of resources: there may still be other users that requested a power-on
>> before.
>>
>> We will also introduce the concept of "non-controllable" pwrseq targets
>> soon which further increases the disconnect between the naming
>> convention and the actual semantics.
>>
>> What consumers of pwrseq descriptors actually do is: they *vote* for a
>> powering on of a given target or retract that vote. These operations
>> could be called get/put in line with runtime PM but this could become
>> confusing since we already provide pwrseq_get/put() for a different
>> purpose. pwrseq_vote_on/off() also have been rejected as unusual in
>> the tree.
>>
>> Change the name of the two functions to pwrseq_enable/disable() which
>> better reflects their purpose and semantics and also mirrors other
>> enable-counted resources like regulators and clocks. No functional change
>> intended.
>>
>> If at any point users need to know *when* the exact power event happens,
>> we can provide that information in the form of a notifier.
>>
>> Acked-by: Jeff Johnson <jeff.johnson@xxxxxxxxxxxxxxxx>
>> Acked-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
>> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxxxxxxxx>
>> ---
>> I've floated the idea to rename the two pwrseq functions from "power
>> on/off" to "vote on/off". I've sent a patch but the overwhelming
>> consensus seem to be that enable/disable naming is preferred.
>>
>> I'm doing it in a single commit that should go through the pwrseq tree
>> with Acks from subsystem maintainers.
>>
>> [1] https://lore.kernel.org/all/CAMRc=Mefxn81d0VUwmQgwFtffkL1=Er_1VQZCbC1Sa-Qph4t1w@xxxxxxxxxxxxxx/
>> ---
>> Changes in v2:
>> - Change the naming convention to enable/disable
>> - Link to v1: https://patch.msgid.link/20260727-pwrseq-vote-rename-v1-1-a2029aeeac65@xxxxxxxxxxxxxxxx
>> ---
>>  Documentation/driver-api/pwrseq.rst      |  4 ++--
>>  drivers/bluetooth/hci_qca.c              |  4 ++--
>>  drivers/gpu/drm/imagination/pvr_power.c  |  4 ++--
>>  drivers/net/wireless/ath/ath10k/snoc.c   |  6 +++---
>>  drivers/pci/pwrctrl/generic.c            |  4 ++--
>>  drivers/pci/pwrctrl/pci-pwrctrl-pwrseq.c |  4 ++--
>>  drivers/power/sequencing/core.c          | 16 ++++++++--------
>>  include/linux/pwrseq/consumer.h          |  8 ++++----
>>  8 files changed, 25 insertions(+), 25 deletions(-)
>>
>> diff --git a/Documentation/driver-api/pwrseq.rst b/Documentation/driver-api/pwrseq.rst
>> index ad18b2326b689a41471216f3889480b11768ca82..0c315ab1138b02540fae60b39928c580027c0f7c 100644
>> --- a/Documentation/driver-api/pwrseq.rst
>> +++ b/Documentation/driver-api/pwrseq.rst
>> @@ -50,9 +50,9 @@ Consumer interface
>>  The consumer API is aimed to be as simple as possible. The driver interested in
>>  getting a descriptor from the power sequencer should call pwrseq_get() and
>>  specify the name of the target it wants to reach in the sequence after calling
>> -pwrseq_power_up(). The descriptor can be released by calling pwrseq_put() and
>> +pwrseq_enable(). The descriptor can be released by calling pwrseq_put() and
>>  the consumer can request the powering down of its target with
>> -pwrseq_power_off(). Note that there is no guarantee that pwrseq_power_off()
>> +pwrseq_disble(). Note that there is no guarantee that pwrseq_disble()
>>  will have any effect as there may be multiple users of the underlying resources
>>  who may keep them active.
>>
>> diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
>> index 345f602e9ce233a0934a73a85d1e7c17c4f3210d..e713fc06b73402ae3d57794ed0870df8394a796a 100644
>> --- a/drivers/bluetooth/hci_qca.c
>> +++ b/drivers/bluetooth/hci_qca.c
>> @@ -2259,7 +2259,7 @@ static void qca_power_off(struct hci_uart *hu)
>>         }
>>
>>         if (power && power->pwrseq) {
>> -               pwrseq_power_off(power->pwrseq);
>> +               pwrseq_disble(power->pwrseq);
>
> Nit: s/pwrseq_disble/pwrseq_disable ?
>

Ah dang it, how did I miss it, I test-built it. :/

Thanks for catching it.

Bart