From: Maxime Ripard <maxime@cerno.tech>
Date: Mon, 7 Dec 2020 10:50:50 +0000 (+0100)
Subject: clk: Trace clk_set_rate() "range" functions
X-Git-Tag: v5.11-rc1~44^2~1^4
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=03813d9b7d4368d4a8c9bb8f5a2a1e23dac8f1b5;p=linux-platform-drivers-x86.git

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>
---

diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index f83dac54ed85..b98415d280c8 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -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);
diff --git a/include/trace/events/clk.h b/include/trace/events/clk.h
index cb1aea25c199..e19edc63ee95 100644
--- a/include/trace/events/clk.h
+++ b/include/trace/events/clk.h
@@ -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),