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| author | Daniel Lezcano <daniel.lezcano@linaro.org> | 2019-06-12 22:13:24 +0200 |
|---|---|---|
| committer | Zhang Rui <rui.zhang@intel.com> | 2019-06-27 21:22:13 +0800 |
| commit | 980af75ede4f36107b98aa5c247359b87c6afc30 (patch) | |
| tree | b89606fef59a940be991d4ddea6c5810cd97c9d3 /drivers/thermal | |
| parent | 4b972a01a7da614b4796475f933094751a295a2f (diff) | |
| download | linux-980af75ede4f36107b98aa5c247359b87c6afc30.tar.bz2 | |
thermal/drivers/core: Add init section table for self-encapsulation
Currently the governors are declared in their respective files but they
export their [un]register functions which in turn call the [un]register
governors core's functions. That implies a cyclic dependency which is
not desirable. There is a way to self-encapsulate the governors by letting
them to declare themselves in a __init section table.
Define the table in the asm generic linker description like the other
tables and provide the specific macros to deal with.
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Diffstat (limited to 'drivers/thermal')
| -rw-r--r-- | drivers/thermal/thermal_core.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/thermal/thermal_core.h b/drivers/thermal/thermal_core.h index 0df190ed82a7..06778cec8416 100644 --- a/drivers/thermal/thermal_core.h +++ b/drivers/thermal/thermal_core.h @@ -15,6 +15,21 @@ /* Initial state of a cooling device during binding */ #define THERMAL_NO_TARGET -1UL +/* Init section thermal table */ +extern struct thermal_governor *__governor_thermal_table[]; +extern struct thermal_governor *__governor_thermal_table_end[]; + +#define THERMAL_TABLE_ENTRY(table, name) \ + static typeof(name) *__thermal_table_entry_##name \ + __used __section(__##table##_thermal_table) = &name + +#define THERMAL_GOVERNOR_DECLARE(name) THERMAL_TABLE_ENTRY(governor, name) + +#define for_each_governor_table(__governor) \ + for (__governor = __governor_thermal_table; \ + __governor < __governor_thermal_table_end; \ + __governor++) + /* * This structure is used to describe the behavior of * a certain cooling device on a certain trip point |