clk: Add a devm variant of clk_rate_exclusive_get()

This allows to simplify drivers that use clk_rate_exclusive_get()
in their probe routine as calling clk_rate_exclusive_put() is cared for
automatically.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20240104225512.1124519-2-u.kleine-koenig@pengutronix.de
Acked-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

1 files changed, 19 insertions, 0 deletions

diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 2253c154a824..a3bc7fb90d0f 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -939,6 +939,25 @@ int clk_rate_exclusive_get(struct clk *clk)
 }
 EXPORT_SYMBOL_GPL(clk_rate_exclusive_get);
 
+static void devm_clk_rate_exclusive_put(void *data)
+{
+	struct clk *clk = data;
+
+	clk_rate_exclusive_put(clk);
+}
+
+int devm_clk_rate_exclusive_get(struct device *dev, struct clk *clk)
+{
+	int ret;
+
+	ret = clk_rate_exclusive_get(clk);
+	if (ret)
+		return ret;
+
+	return devm_add_action_or_reset(dev, devm_clk_rate_exclusive_put, clk);
+}
+EXPORT_SYMBOL_GPL(devm_clk_rate_exclusive_get);
+
 static void clk_core_unprepare(struct clk_core *core)
 {
 	lockdep_assert_held(&prepare_lock);