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| author | Chen-Yu Tsai <wens@csie.org> | 2017-01-28 20:22:31 +0800 |
|---|---|---|
| committer | Maxime Ripard <maxime.ripard@free-electrons.com> | 2017-01-30 08:35:50 +0100 |
| commit | 216abdcc3ae7b1dbe145f1e78cf727b6832db9b4 (patch) | |
| tree | 6ee0cd7aa6b91cde8d80e0d7a0d5cf816ea54140 /drivers/clk | |
| parent | ed48205fb4054bab68fe47648ba4b7ceb67fcc17 (diff) | |
| download | lwn-216abdcc3ae7b1dbe145f1e78cf727b6832db9b4.tar.gz lwn-216abdcc3ae7b1dbe145f1e78cf727b6832db9b4.zip | |
clk: sunxi-ng: mux: honor CLK_SET_RATE_NO_REPARENT flag
This patch adds support for the CLK_SET_RATE_NO_REPARENT flag to the
mux determine_rate helper, based on examples from clk-composite and
clk-mux.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Diffstat (limited to 'drivers/clk')
| -rw-r--r-- | drivers/clk/sunxi-ng/ccu_mux.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/clk/sunxi-ng/ccu_mux.c b/drivers/clk/sunxi-ng/ccu_mux.c index eb66adb28807..d0d69c7eb516 100644 --- a/drivers/clk/sunxi-ng/ccu_mux.c +++ b/drivers/clk/sunxi-ng/ccu_mux.c @@ -70,6 +70,21 @@ int ccu_mux_helper_determine_rate(struct ccu_common *common, struct clk_hw *best_parent, *hw = &common->hw; unsigned int i; + if (clk_hw_get_flags(hw) & CLK_SET_RATE_NO_REPARENT) { + unsigned long adj_parent_rate; + + best_parent = clk_hw_get_parent(hw); + best_parent_rate = clk_hw_get_rate(best_parent); + + adj_parent_rate = best_parent_rate; + ccu_mux_helper_adjust_parent_for_prediv(common, cm, -1, + &adj_parent_rate); + + best_rate = round(cm, adj_parent_rate, req->rate, data); + + goto out; + } + for (i = 0; i < clk_hw_get_num_parents(hw); i++) { unsigned long tmp_rate, parent_rate, adj_parent_rate; struct clk_hw *parent; |