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path: root/drivers/clk/sunxi/clk-factors.c
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Diffstat (limited to 'drivers/clk/sunxi/clk-factors.c')
-rw-r--r--drivers/clk/sunxi/clk-factors.c39
1 files changed, 19 insertions, 20 deletions
diff --git a/drivers/clk/sunxi/clk-factors.c b/drivers/clk/sunxi/clk-factors.c
index 8c20190a3e9f..59428dbd607a 100644
--- a/drivers/clk/sunxi/clk-factors.c
+++ b/drivers/clk/sunxi/clk-factors.c
@@ -79,41 +79,42 @@ static long clk_factors_round_rate(struct clk_hw *hw, unsigned long rate,
return rate;
}
-static long clk_factors_determine_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long min_rate,
- unsigned long max_rate,
- unsigned long *best_parent_rate,
- struct clk_hw **best_parent_p)
+static int clk_factors_determine_rate(struct clk_hw *hw,
+ struct clk_rate_request *req)
{
- struct clk *clk = hw->clk, *parent, *best_parent = NULL;
+ struct clk_hw *parent, *best_parent = NULL;
int i, num_parents;
unsigned long parent_rate, best = 0, child_rate, best_child_rate = 0;
/* find the parent that can help provide the fastest rate <= rate */
- num_parents = __clk_get_num_parents(clk);
+ num_parents = clk_hw_get_num_parents(hw);
for (i = 0; i < num_parents; i++) {
- parent = clk_get_parent_by_index(clk, i);
+ parent = clk_hw_get_parent_by_index(hw, i);
if (!parent)
continue;
- if (__clk_get_flags(clk) & CLK_SET_RATE_PARENT)
- parent_rate = __clk_round_rate(parent, rate);
+ if (clk_hw_get_flags(hw) & CLK_SET_RATE_PARENT)
+ parent_rate = clk_hw_round_rate(parent, req->rate);
else
- parent_rate = __clk_get_rate(parent);
+ parent_rate = clk_hw_get_rate(parent);
- child_rate = clk_factors_round_rate(hw, rate, &parent_rate);
+ child_rate = clk_factors_round_rate(hw, req->rate,
+ &parent_rate);
- if (child_rate <= rate && child_rate > best_child_rate) {
+ if (child_rate <= req->rate && child_rate > best_child_rate) {
best_parent = parent;
best = parent_rate;
best_child_rate = child_rate;
}
}
- if (best_parent)
- *best_parent_p = __clk_get_hw(best_parent);
- *best_parent_rate = best;
+ if (!best_parent)
+ return -EINVAL;
- return best_child_rate;
+ req->best_parent_hw = best_parent;
+ req->best_parent_rate = best;
+ req->rate = best_child_rate;
+
+ return 0;
}
static int clk_factors_set_rate(struct clk_hw *hw, unsigned long rate,
@@ -174,9 +175,7 @@ struct clk *sunxi_factors_register(struct device_node *node,
int i = 0;
/* if we have a mux, we will have >1 parents */
- while (i < FACTORS_MAX_PARENTS &&
- (parents[i] = of_clk_get_parent_name(node, i)) != NULL)
- i++;
+ i = of_clk_parent_fill(node, parents, FACTORS_MAX_PARENTS);
/*
* some factor clocks, such as pll5 and pll6, may have multiple