Commit 03813d9b authored by Maxime Ripard's avatar Maxime Ripard Committed by Stephen Boyd
Browse files

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: default avatarMaxime 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: default avatarStephen Boyd <sboyd@kernel.org>
parent 3650b228

drivers/clk/clk.c

+6 −0
Original line number Diff line number Diff line
@@ -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);

include/trace/events/clk.h

+44 −0
Original line number Diff line number Diff line
@@ -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),

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