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authorJames Hogan <james.hogan@imgtec.com>2013-07-29 15:25:02 +0400
committerMike Turquette <mturquette@linaro.org>2013-08-19 23:27:18 +0400
commite366fdd72529c545ccf327569ee250c1673be221 (patch)
tree69139adc59e6ab101555f09544669793c385c250 /drivers/clk/clk-mux.c
parent819c1de344c5b8350bffd35be9a0fa74541292d3 (diff)
downloadlinux-e366fdd72529c545ccf327569ee250c1673be221.tar.xz
clk: clk-mux: implement remuxing on set_rate
Implement clk-mux remuxing if the CLK_SET_RATE_NO_REPARENT flag isn't set. This implements determine_rate for clk-mux to propagate to each parent and to choose the best one (like clk-divider this chooses the parent which provides the fastest rate <= the requested rate). The determine_rate op is implemented as a core helper function so that it can be easily used by more complex clocks which incorporate muxes. Signed-off-by: James Hogan <james.hogan@imgtec.com> Reviewed-by: Stephen Boyd <sboyd@codeaurora.org> Cc: Mike Turquette <mturquette@linaro.org> Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Mike Turquette <mturquette@linaro.org>
Diffstat (limited to 'drivers/clk/clk-mux.c')
-rw-r--r--drivers/clk/clk-mux.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/clk/clk-mux.c b/drivers/clk/clk-mux.c
index b918dc370bd0..0811633fcc4d 100644
--- a/drivers/clk/clk-mux.c
+++ b/drivers/clk/clk-mux.c
@@ -104,6 +104,7 @@ static int clk_mux_set_parent(struct clk_hw *hw, u8 index)
const struct clk_ops clk_mux_ops = {
.get_parent = clk_mux_get_parent,
.set_parent = clk_mux_set_parent,
+ .determine_rate = __clk_mux_determine_rate,
};
EXPORT_SYMBOL_GPL(clk_mux_ops);