From: Sascha Hauer <s.hauer@pengutronix.de> To: Barebox List <barebox@lists.infradead.org> Subject: [PATCH] clk: bail out early when rate is already desired one Date: Mon, 7 Jun 2021 16:12:56 +0200 [thread overview] Message-ID: <20210607141256.24801-1-s.hauer@pengutronix.de> (raw) Return successfully from clk_set_rate() when the rate is already the desired one. This prevents a failure in clk_set_rate() when the current clock doesn't have a set_rate hook. Signed-off-by: Sascha Hauer <s.hauer@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 8b90f30486..ba726c342c 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -169,6 +169,9 @@ int clk_set_rate(struct clk *clk, unsigned long rate) if (IS_ERR(clk)) return PTR_ERR(clk); + if (clk_get_rate(clk) == clk_round_rate(clk, rate)) + return 0; + if (!clk->ops->set_rate) return -ENOSYS; -- 2.29.2 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox
next reply other threads:[~2021-06-07 14:14 UTC|newest] Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-06-07 14:12 Sascha Hauer [this message] 2021-06-07 15:46 ` Ahmad Fatoum 2021-06-16 8:29 ` Sascha Hauer
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