linux-toradex.git/drivers/opp, branch v5.17-rc4

opp: Fix return in _opp_add_static_v2()

2021-10-08T07:54:46+00:00

Fix sparse warning:
drivers/opp/of.c:924 _opp_add_static_v2() warn: passing zero to 'ERR_PTR'

For duplicate OPPs 'ret' be set to zero.

Fixes: deac8703da5f ("PM / OPP: _of_add_opp_table_v2(): increment count only if OPP is added")
Signed-off-by: YueHaibing 
Signed-off-by: Viresh Kumar

opp: Add more resource-managed variants of dev_pm_opp_of_add_table()

2021-10-04T11:03:15+00:00

Add resource-managed variants of dev_pm_opp_of_add_table_indexed() and
dev_pm_opp_of_add_table_noclk(), allowing drivers to remove boilerplate
code.

Signed-off-by: Dmitry Osipenko 
[ Viresh: Added underscore to devm_of_add_table_indexed() ]
Signed-off-by: Viresh Kumar

opp: Change type of dev_pm_opp_attach_genpd(names) argument

2021-10-04T09:08:59+00:00

Elements of the 'names' array are not changed by the code, constify them
for consistency.

Signed-off-by: Dmitry Osipenko 
Signed-off-by: Viresh Kumar

opp: Fix required-opps phandle array count check

2021-10-04T06:53:09+00:00

The 'required-opps' property is optional. So of_count_phandle_with_args()
can return -ENOENT when queried for required-opps. Handle this case.

Signed-off-by: Pavankumar Kondeti 
Signed-off-by: Viresh Kumar

Merge branches 'pm-pci', 'pm-sleep', 'pm-domains' and 'powercap'

2021-08-30T17:25:42+00:00

* pm-pci:
  PCI: PM: Enable PME if it can be signaled from D3cold
  PCI: PM: Avoid forcing PCI_D0 for wakeup reasons inconsistently
  PCI: Use pci_update_current_state() in pci_enable_device_flags()

* pm-sleep:
  PM: sleep: unmark 'state' functions as kernel-doc
  PM: sleep: check RTC features instead of ops in suspend_test
  PM: sleep: s2idle: Replace deprecated CPU-hotplug functions

* pm-domains:
  PM: domains: Fix domain attach for CONFIG_PM_OPP=n
  arm64: dts: sc7180: Add required-opps for i2c
  PM: domains: Add support for 'required-opps' to set default perf state
  opp: Don't print an error if required-opps is missing

* powercap:
  powercap: Add Power Limit4 support for Alder Lake SoC
  powercap: intel_rapl: Replace deprecated CPU-hotplug functions

Merge back new PM domains material for v5.15.

2021-08-30T17:20:32+00:00

opp: core: Check for pending links before reading required_opp pointers

2021-08-23T07:14:55+00:00

Commit 4fa82a87ba55 ("opp: Allow required-opps to be used for non genpd
use cases") dereferences the pointers in required_opp_tables but these
might be set to an ERR_PTR if the list still has lazy links pending,
resulting in segfaults.  Prior to this patch IS_ERR was also checked on
required_opp_tables[i] before reading ->is_genpd inside
_opp_table_alloc_required_tables, which is at the same time the
predicate to add this table to the lazy list.  This segfault is solved
by reordering the checks to bail on lazy pending tables before reading
->is_genpd.

Fixes: 4fa82a87ba55 ("opp: Allow required-opps to be used for non genpd use cases")
Reviewed-by: AngeloGioacchino Del Regno 
Signed-off-by: Marijn Suijten 
Signed-off-by: Viresh Kumar

opp: Don't print an error if required-opps is missing

2021-08-16T16:45:29+00:00

The 'required-opps' property is considered optional, hence remove
the pr_err() in of_parse_required_opp() when we find the property is
missing.
While at it, also fix the return value of
of_get_required_opp_performance_state() when of_parse_required_opp()
fails, return a -ENODEV instead of the -EINVAL.

Signed-off-by: Rajendra Nayak 
Reviewed-by: Ulf Hansson 
Acked-by: Viresh Kumar 
Signed-off-by: Rafael J. Wysocki

opp: Drop empty-table checks from _put functions

2021-08-16T04:12:08+00:00

The current_opp is released only when whole OPP table is released,
otherwise it's only marked as removed by dev_pm_opp_remove_table().
Functions like dev_pm_opp_put_clkname() and dev_pm_opp_put_supported_hw()
are checking whether OPP table is empty and it's not if current_opp is
set since it holds the refcount of OPP, this produces a noisy warning
from these functions about busy OPP table. Remove the checks to fix it.

Cc: stable@vger.kernel.org
Fixes: 81c4d8a3c414 ("opp: Keep track of currently programmed OPP")
Signed-off-by: Dmitry Osipenko 
Signed-off-by: Viresh Kumar

opp: remove WARN when no valid OPPs remain

2021-08-04T04:01:25+00:00

This WARN can be triggered per-core and the stack trace is not useful.
Replace it with plain dev_err(). Fix a comment while at it.

Signed-off-by: Michał Mirosław 
Signed-off-by: Viresh Kumar