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authorMaxime Ripard <maxime.ripard@free-electrons.com>2017-01-24 10:41:18 +0100
committerMaxime Ripard <maxime.ripard@free-electrons.com>2017-01-27 11:05:34 +0100
commitbf3be2caa593e1e35ff8d8d5b32c2c9a6a85e1d8 (patch)
treec649d1876d99401b1fea9ecc30109f9705c2e6fa /drivers/clk
parent6b48644b1d29d78c146bc94814afe01625dd0f0d (diff)
clk: sunxi-ng: Call divider_round_rate if we only have a single parent
The divider_get_val function that is used in our determine_rate callback doesn't try to change the parent rate at all, while clk_divider_bestdiv, used in divider_round_rate, does. If we have a single parent, call divider_round_rate. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Stephen Boyd <sboyd@codeaurora.org> Acked-by: Chen-Yu Tsai <wens@csie.org>
Diffstat (limited to 'drivers/clk')
-rw-r--r--drivers/clk/sunxi-ng/ccu_div.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/clk/sunxi-ng/ccu_div.c b/drivers/clk/sunxi-ng/ccu_div.c
index 8659b4cb6c20..4057e6021aa9 100644
--- a/drivers/clk/sunxi-ng/ccu_div.c
+++ b/drivers/clk/sunxi-ng/ccu_div.c
@@ -77,6 +77,18 @@ static int ccu_div_determine_rate(struct clk_hw *hw,
{
struct ccu_div *cd = hw_to_ccu_div(hw);
+ if (clk_hw_get_num_parents(hw) == 1) {
+ req->rate = divider_round_rate(hw, req->rate,
+ &req->best_parent_rate,
+ cd->div.table,
+ cd->div.width,
+ cd->div.flags);
+
+ req->best_parent_hw = clk_hw_get_parent(hw);
+
+ return 0;
+ }
+
return ccu_mux_helper_determine_rate(&cd->common, &cd->mux,
req, ccu_div_round_rate, cd);
}