From a34cd4666f3da84228a82f70c94b8d9b692034ea Mon Sep 17 00:00:00 2001 From: Jean-Francois Moine Date: Mon, 25 Nov 2013 19:47:04 +0100 Subject: clk: return probe defer when DT clock not yet ready At probe time, a clock device may not be ready when some other device wants to use it. This patch lets the functions clk_get/devm_clk_get return a probe defer when the clock is defined in the DT but not yet available. Signed-off-by: Jean-Francois Moine Reviewed-by: Sylwester Nawrocki Tested-by: Sylwester Nawrocki Signed-off-by: Mike Turquette --- drivers/clk/clkdev.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/clk/clkdev.c') diff --git a/drivers/clk/clkdev.c b/drivers/clk/clkdev.c index 48f67218247c..a360b2eca5cb 100644 --- a/drivers/clk/clkdev.c +++ b/drivers/clk/clkdev.c @@ -167,6 +167,8 @@ struct clk *clk_get(struct device *dev, const char *con_id) clk = of_clk_get_by_name(dev->of_node, con_id); if (!IS_ERR(clk)) return clk; + if (PTR_ERR(clk) == -EPROBE_DEFER) + return clk; } return clk_get_sys(dev_id, con_id); -- cgit v1.2.1