| Commit message (Collapse) | Author | Age | Files | Lines |
|---|
| |
|
|
|
|
|
|
|
| |
We already have pm_genpd_init/of_genpd_add_provider, but lack functions
to deregister them. Port the deregisteration functions over from Linux.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20240119162610.1014870-13-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
|
| |
|
|
|
|
|
|
|
|
|
|
|
| |
Putting a runtime PM reference will send a device into runtime suspend
once no users remain.
We don't do reference counting for users and don't mind power domains
remaining enabled as the kernel will enable unused power domains on its
own anyway. Thus implement pm_runtime_put_genpd() as empty stub.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20240119162610.1014870-12-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
|
| |
|
|
|
|
|
|
|
|
|
|
|
| |
Detaching a power domain frees the virtual device if any was allocated
and may power down the domain if no users remain.
We don't do reference counting for users and don't mind power domains
remaining enables as the kernel will enable unused power domains on its
own anyway. Thus implement dev_pm_domain_detach() as empty stub.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20240119162610.1014870-11-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
When a single power domain is specified platform driver probe takes care
to enable the power domain. When there are multiple power domains
however, each Linux driver must itself enable power domains in the
correct sequence.
In Linux, this is handled by runtime PM. We don't have that in barebox,
so we add the enable function with a _genpd suffix to alert users to
this fact.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20240119162610.1014870-9-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
| |
In Linux, dev_pm_domain_attach() enables a device's sole power domain,
but dev_pm_domain_attach_by_id/name(), attaches the power domain to a
virtual device and returns it for use with runtime PM API.
Import these two functions into barebox, so drivers can use them to
implement more elaborate power up sequences. The power up operation
itself follows in a follow-up commit.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20240119162610.1014870-8-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
In Linux, there is no public consumer API to enable or disable
a struct generic_pm_domain. Operations are instead performed on regular
struct device, each of which has a reference to a single attached
power domain.
Power domain consumer API in barebox was so far limited to automatically
attaching a single power domain and powering it on prior to function probe,
which is never detached and thus no further consumer API is needed.
To support more complex power domain setups, we adopt here the kernel API
of attaching power domains to devices to enable using struct device
as handles for additional power domain operations.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20240119162610.1014870-5-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
|
| |
|
|
|
|
|
|
|
|
| |
genpd_dev_pm_attach already has a stub definition when
!CONFIG_PM_GENERIC_DOMAINS, so we can just call it unconditionally
from dev_pm_domain_attach.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20240119162610.1014870-3-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
|
| |\ |
|
| | |
| |
| |
| |
| |
| |
| |
| |
| |
| | |
pm_domain.h so far included no headers and only worked, because it was
included in a "correct" order in other files. Fix this by including the
header it depends on.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20231109121108.1475657-1-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
|
| |/
|
|
|
|
|
|
|
| |
So far we only have simple translation support. Add support for onecell
translation taken straight from Linux. This is needed for upcoming TI K3
support.
Link: https://lore.barebox.org/20230803105003.4088205-2-s.hauer@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
Many SoCs provide power-domains in their device trees. In barebox
we most of the time do not have drivers for the power-domains. This
is no problem for most of the time as the necessary power domains
are either default on or enabled during early SoC init.
With multi-arch support it can happen that we compile in SoCs for
which we do not have power-domain drivers and other SoCs where we
need a power-domain driver. The example I stumbled upon is the
i.MX7 on the one hand which has a driver and OMAP on the other hand
which has power-domains described in the device tree for which
we do not have (and do not currently need) a driver.
To be able to handle both situations let's enable pm_domain support
explicitly on SoCs we know we have a driver for.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
|
| |
|
|
|
|
|
|
|
|
|
|
|
| |
The '_d' suffix was originally introduced in case we want to import
Linux struct device as a separate struct into barebox. Over time it
became clear that this won't happen, instead barebox struct device_d
is basically the same as Linux struct device. Rename the struct name
accordingly to make porting Linux code easier.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Marco Felsch <m.felsch@pengutronix.de>
Link: https://lore.barebox.org/20221214123512.189688-3-s.hauer@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
|
| |
|
|
|
|
|
|
|
|
| |
Like the regulator command, this new pm_domain command gives an easy
way for listing registered power domains and whether barebox had them
activated.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20220905070448.539531-1-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
|
| |
|
|
|
|
|
|
|
| |
All these files lack a license statement, so add the default
GPL-2.0-only.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20220103120539.1730644-7-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
|
|
|
Port an extremely abridged version of power management/power domain
code from Linux as a dependency of i.MX7D PCIe work. Currenlty only
bare minimum of functionality is implemented.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
|
