diff options
| author | Jean-Francois Moine <moinejf@free.fr> | 2013-11-25 19:47:04 +0100 |
|---|---|---|
| committer | Mike Turquette <mturquette@linaro.org> | 2014-02-25 02:14:56 +0100 |
| commit | a34cd4666f3da84228a82f70c94b8d9b692034ea (patch) | |
| tree | bdf93ce97c4afa5c1c25de912109b13467c08224 /drivers/clk/clkdev.c | |
| parent | clk: add pr_debug & kerneldoc around clk notifiers (diff) | |
| download | linux-a34cd4666f3da84228a82f70c94b8d9b692034ea.tar.xz linux-a34cd4666f3da84228a82f70c94b8d9b692034ea.zip | |
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 <moinejf@free.fr>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Tested-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Diffstat (limited to 'drivers/clk/clkdev.c')
| -rw-r--r-- | drivers/clk/clkdev.c | 2 |
1 files changed, 2 insertions, 0 deletions
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); |