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authorChen-Yu Tsai <wens@csie.org>2017-01-28 20:22:32 +0800
committerMaxime Ripard <maxime.ripard@free-electrons.com>2017-01-30 08:36:03 +0100
commit82aab516ec96ab9f9ad4b80a0bab9368b1cd5cdc (patch)
tree53badf37c67f472b3505f012681c764a2667e4a9 /drivers/clk
parent216abdcc3ae7b1dbe145f1e78cf727b6832db9b4 (diff)
downloadlinux-82aab516ec96ab9f9ad4b80a0bab9368b1cd5cdc.tar.bz2
clk: sunxi-ng: mux: Get closest parent rate possible with CLK_SET_RATE_PARENT
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>
Diffstat (limited to 'drivers/clk')
-rw-r--r--drivers/clk/sunxi-ng/ccu_mux.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/clk/sunxi-ng/ccu_mux.c b/drivers/clk/sunxi-ng/ccu_mux.c
index d0d69c7eb516..c6bb1f523232 100644
--- a/drivers/clk/sunxi-ng/ccu_mux.c
+++ b/drivers/clk/sunxi-ng/ccu_mux.c
@@ -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);