summaryrefslogtreecommitdiff
path: root/drivers/thermal/thermal_core.h
diff options
context:
space:
mode:
authorDaniel Lezcano <daniel.lezcano@linaro.org>2019-06-12 22:13:24 +0200
committerZhang Rui <rui.zhang@intel.com>2019-06-27 21:22:13 +0800
commit980af75ede4f36107b98aa5c247359b87c6afc30 (patch)
treeb89606fef59a940be991d4ddea6c5810cd97c9d3 /drivers/thermal/thermal_core.h
parent4b972a01a7da614b4796475f933094751a295a2f (diff)
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/thermal_core.h')
-rw-r--r--drivers/thermal/thermal_core.h15
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