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authorSascha Hauer <s.hauer@pengutronix.de>2013-04-16 10:19:05 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2013-06-20 08:49:55 +0200
commit680df771745ee89c0299af704f46689e21253b70 (patch)
tree4ccf686cbeace2f2f0399083c1c987c745f5e7b7 /include/linux/clk.h
parent707fb7ada577b4cb6988b9dc820a357959c626a3 (diff)
downloadbarebox-680df771745ee89c0299af704f46689e21253b70.tar.gz
barebox-680df771745ee89c0299af704f46689e21253b70.tar.xz
clk: add prototype for clk_is_enabled
On MXS we need to poll the busy bit when changing a clock rate, but only when the parent clocks are enabled. This exposes the already present function clk_is_enabled which is suitable for this job. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'include/linux/clk.h')
-rw-r--r--include/linux/clk.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/clk.h b/include/linux/clk.h
index 718faa0fb9..38832ba942 100644
--- a/include/linux/clk.h
+++ b/include/linux/clk.h
@@ -216,6 +216,7 @@ struct clk *clk_gate(const char *name, const char *parent, void __iomem *reg,
u8 shift);
struct clk *clk_gate_inverted(const char *name, const char *parent, void __iomem *reg,
u8 shift);
+int clk_is_enabled(struct clk *clk);
int clk_is_enabled_always(struct clk *clk);