From: Michael Grzeschik <m.grzeschik@pengutronix.de>
To: barebox@lists.infradead.org
Subject: [PATCH] clk: clk_set_parent: skip any operation if current and new parents are equal
Date: Fri, 3 Oct 2025 12:37:20 +0200 [thread overview]
Message-ID: <20251003103720.2028460-1-m.grzeschik@pengutronix.de> (raw)
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
---
drivers/clk/clk.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 89a007a12c5..ac5b83cf8b4 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -302,6 +302,9 @@ int clk_set_parent(struct clk *clk, struct clk *newparent)
if (IS_ERR(newparent))
return PTR_ERR(newparent);
+ if (newparent == curparent)
+ return 0;
+
if (!clk->num_parents)
return -EINVAL;
if (!clk->ops->set_parent)
--
2.47.3
next reply other threads:[~2025-10-03 10:38 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-03 10:37 Michael Grzeschik [this message]
2025-10-06 11:43 ` Ahmad Fatoum
2025-10-06 20:53 ` Michael Grzeschik
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