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clk: sunxi-ng: mux: Get closest parent rate possible with CLK_SET_RATE_PARENT

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If the CLK_SET_RATE_PARENT flag is set, we want to try getting the
closest parent rate.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
This commit is contained in:
Chen-Yu Tsai 2017-01-28 20:22:32 +08:00 committed by Maxime Ripard
parent 216abdcc3a
commit 82aab516ec
1 changed files with 12 additions and 1 deletions
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13
drivers/clk/sunxi-ng/ccu_mux.c
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@ -93,7 +93,18 @@ int ccu_mux_helper_determine_rate(struct ccu_common *common,
if (!parent)
continue;
parent_rate = clk_hw_get_rate(parent);
if (clk_hw_get_flags(hw) & CLK_SET_RATE_PARENT) {
struct clk_rate_request parent_req = *req;
int ret = __clk_determine_rate(parent, &parent_req);
if (ret)
continue;
parent_rate = parent_req.rate;
} else {
parent_rate = clk_hw_get_rate(parent);
}
adj_parent_rate = parent_rate;
ccu_mux_helper_adjust_parent_for_prediv(common, cm, i,
&adj_parent_rate);