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clk: Trace clk_set_rate() "range" functions 

The clk_set_rate "range" functions don't have any tracepoints even
though it might be useful. Add some.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20201207105050.2096917-1-maxime@cerno.tech
[sboyd@kernel.org: Reword commit text]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This commit is contained in:
Maxime Ripard 2020-12-07 11:50:50 +01:00 committed by Stephen Boyd
parent 3650b228f8
commit 03813d9b7d
2 changed files with 50 additions and 0 deletions
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6
drivers/clk/clk.c
View File

@ -2314,6 +2314,8 @@ int clk_set_rate_range(struct clk *clk, unsigned long min, unsigned long max)
if (!clk)
return 0;
trace_clk_set_rate_range(clk->core, min, max);
if (min > max) {
pr_err("%s: clk %s dev %s con %s: invalid range [%lu, %lu]\n",
__func__, clk->core->name, clk->dev_id, clk->con_id,
@ -2381,6 +2383,8 @@ int clk_set_min_rate(struct clk *clk, unsigned long rate)
if (!clk)
return 0;
trace_clk_set_min_rate(clk->core, rate);
return clk_set_rate_range(clk, rate, clk->max_rate);
}
EXPORT_SYMBOL_GPL(clk_set_min_rate);
@ -2397,6 +2401,8 @@ int clk_set_max_rate(struct clk *clk, unsigned long rate)
if (!clk)
return 0;
trace_clk_set_max_rate(clk->core, rate);
return clk_set_rate_range(clk, clk->min_rate, rate);
}
EXPORT_SYMBOL_GPL(clk_set_max_rate);

44
include/trace/events/clk.h
View File

@ -118,6 +118,50 @@ DEFINE_EVENT(clk_rate, clk_set_rate_complete,
TP_ARGS(core, rate)
);
DEFINE_EVENT(clk_rate, clk_set_min_rate,
TP_PROTO(struct clk_core *core, unsigned long rate),
TP_ARGS(core, rate)
);
DEFINE_EVENT(clk_rate, clk_set_max_rate,
TP_PROTO(struct clk_core *core, unsigned long rate),
TP_ARGS(core, rate)
);
DECLARE_EVENT_CLASS(clk_rate_range,
TP_PROTO(struct clk_core *core, unsigned long min, unsigned long max),
TP_ARGS(core, min, max),
TP_STRUCT__entry(
__string( name, core->name )
__field(unsigned long, min )
__field(unsigned long, max )
),
TP_fast_assign(
__assign_str(name, core->name);
__entry->min = min;
__entry->max = max;
),
TP_printk("%s min %lu max %lu", __get_str(name),
(unsigned long)__entry->min,
(unsigned long)__entry->max)
);
DEFINE_EVENT(clk_rate_range, clk_set_rate_range,
TP_PROTO(struct clk_core *core, unsigned long min, unsigned long max),
TP_ARGS(core, min, max)
);
DECLARE_EVENT_CLASS(clk_parent,
TP_PROTO(struct clk_core *core, struct clk_core *parent),