kernel/linux.git/drivers/opp/of.c, branch v5.15.7

opp: Fix return in _opp_add_static_v2()

2021-11-18T18:17:00+00:00

[ Upstream commit 27ff8187f13ecfec8a26fb1928e906f46f326cc5 ] 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 Signed-off-by: Sasha Levin

Merge back new PM domains material for v5.15.

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

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: 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

opp: Allow required-opps to be used for non genpd use cases

2021-06-18T03:30:55+00:00

Don't limit required_opp_table to genpd only. One possible use case is cpufreq based devfreq governor, which can use required-opps property to derive devfreq from cpufreq. Though the OPP core still doesn't support non-genpd required-opps in _set_required_opps(). Suggested-by: Chanwoo Choi Signed-off-by: Hsin-Yi Wang [ Viresh: Update _set_required_opps() to check for genpd ] Signed-off-by: Viresh Kumar

opp: use list_del_init instead of list_del/INIT_LIST_HEAD

2021-05-20T04:02:40+00:00

Using list_del_init() instead of list_del() + INIT_LIST_HEAD() to simpify the code. Signed-off-by: Yang Yingliang Signed-off-by: Viresh Kumar

opp: Add devres wrapper for dev_pm_opp_of_add_table

2021-03-15T03:56:53+00:00

Add devres wrapper for dev_pm_opp_of_add_table() to simplify drivers code. Signed-off-by: Yangtao Li Signed-off-by: Dmitry Osipenko Signed-off-by: Viresh Kumar

opp: Allow lazy-linking of required-opps

2021-02-02T05:00:53+00:00

The OPP core currently requires the required opp tables to be available before the dependent OPP table is added, as it needs to create links from the dependent OPP table to the required ones. This may not be convenient for all the platforms though, as this requires strict ordering for probing the drivers. This patch allows lazy-linking of the required-opps. The OPP tables for which the required-opp-tables aren't available at the time of their initialization, are added to a special list of OPP tables: lazy_opp_tables. Later on, whenever a new OPP table is registered with the OPP core, we check if it is required by an OPP table in the pending list; if yes, then we complete the linking then and there. An OPP table is marked unusable until the time all its required-opp tables are available. And if lazy-linking fails for an OPP table, the OPP core disables all of its OPPs to make sure no one can use them. Tested-by: Hsin-Yi Wang Signed-off-by: Viresh Kumar

opp: Print OPP level in debug message of _opp_add_static_v2()

2021-02-02T04:57:36+00:00

Print OPP level in debug message of _opp_add_static_v2(). This helps to chase GENPD bugs. Tested-by: Peter Geis Tested-by: Nicolas Chauvet Tested-by: Matt Merhar Signed-off-by: Dmitry Osipenko Signed-off-by: Viresh Kumar

opp: Add dev_pm_opp_of_add_table_noclk()

2021-02-02T04:57:26+00:00

A few drivers have device's clk but they don't want the OPP core to handle that. Add a new helper for them, dev_pm_opp_of_add_table_noclk(). Signed-off-by: Viresh Kumar Tested-by: Dmitry Osipenko