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authorNeil Armstrong <narmstrong@baylibre.com>2019-07-31 10:40:16 +0200
committerJerome Brunet <jbrunet@baylibre.com>2019-08-09 12:09:52 +0200
commit3567894b6914813299300019e028874927210880 (patch)
tree8c9234bf93c94717e616074cd966e585e88eedec /drivers/clk/clk.c
parente96c7612315a1183e12d5b6ebd523a3a93617510 (diff)
clk: core: introduce clk_hw_set_parent()
Introduce the clk_hw_set_parent() provider call to change parent of a clock by using the clk_hw pointers. This eases the clock reparenting from clock rate notifiers and implementing DVFS with simpler code avoiding the boilerplates functions as __clk_lookup(clk_hw_get_name()) then clk_set_parent(). Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Acked-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Diffstat (limited to 'drivers/clk/clk.c')
-rw-r--r--drivers/clk/clk.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index c0990703ce54..c11b1781d24a 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -2487,6 +2487,12 @@ runtime_put:
return ret;
}
+int clk_hw_set_parent(struct clk_hw *hw, struct clk_hw *parent)
+{
+ return clk_core_set_parent_nolock(hw->core, parent->core);
+}
+EXPORT_SYMBOL_GPL(clk_hw_set_parent);
+
/**
* clk_set_parent - switch the parent of a mux clk
* @clk: the mux clk whose input we are switching