aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/drivers/clk/clk-composite.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/clk/clk-composite.c')
-rw-r--r--drivers/clk/clk-composite.c48
1 files changed, 24 insertions, 24 deletions
diff --git a/drivers/clk/clk-composite.c b/drivers/clk/clk-composite.c
index 616f5aef3c26..9e69f346ecc6 100644
--- a/drivers/clk/clk-composite.c
+++ b/drivers/clk/clk-composite.c
@@ -55,11 +55,8 @@ static unsigned long clk_composite_recalc_rate(struct clk_hw *hw,
return rate_ops->recalc_rate(rate_hw, parent_rate);
}
-static long clk_composite_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_composite_determine_rate(struct clk_hw *hw,
+ struct clk_rate_request *req)
{
struct clk_composite *composite = to_clk_composite(hw);
const struct clk_ops *rate_ops = composite->rate_ops;
@@ -71,25 +68,28 @@ static long clk_composite_determine_rate(struct clk_hw *hw, unsigned long rate,
long tmp_rate, best_rate = 0;
unsigned long rate_diff;
unsigned long best_rate_diff = ULONG_MAX;
+ long rate;
int i;
if (rate_hw && rate_ops && rate_ops->determine_rate) {
__clk_hw_set_clk(rate_hw, hw);
- return rate_ops->determine_rate(rate_hw, rate, min_rate,
- max_rate,
- best_parent_rate,
- best_parent_p);
+ return rate_ops->determine_rate(rate_hw, req);
} else if (rate_hw && rate_ops && rate_ops->round_rate &&
mux_hw && mux_ops && mux_ops->set_parent) {
- *best_parent_p = NULL;
+ req->best_parent_hw = NULL;
if (__clk_get_flags(hw->clk) & CLK_SET_RATE_NO_REPARENT) {
parent = clk_get_parent(mux_hw->clk);
- *best_parent_p = __clk_get_hw(parent);
- *best_parent_rate = __clk_get_rate(parent);
+ req->best_parent_hw = __clk_get_hw(parent);
+ req->best_parent_rate = __clk_get_rate(parent);
- return rate_ops->round_rate(rate_hw, rate,
- best_parent_rate);
+ rate = rate_ops->round_rate(rate_hw, req->rate,
+ &req->best_parent_rate);
+ if (rate < 0)
+ return rate;
+
+ req->rate = rate;
+ return 0;
}
for (i = 0; i < __clk_get_num_parents(mux_hw->clk); i++) {
@@ -99,33 +99,33 @@ static long clk_composite_determine_rate(struct clk_hw *hw, unsigned long rate,
parent_rate = __clk_get_rate(parent);
- tmp_rate = rate_ops->round_rate(rate_hw, rate,
+ tmp_rate = rate_ops->round_rate(rate_hw, req->rate,
&parent_rate);
if (tmp_rate < 0)
continue;
- rate_diff = abs(rate - tmp_rate);
+ rate_diff = abs(req->rate - tmp_rate);
- if (!rate_diff || !*best_parent_p
+ if (!rate_diff || !req->best_parent_hw
|| best_rate_diff > rate_diff) {
- *best_parent_p = __clk_get_hw(parent);
- *best_parent_rate = parent_rate;
+ req->best_parent_hw = __clk_get_hw(parent);
+ req->best_parent_rate = parent_rate;
best_rate_diff = rate_diff;
best_rate = tmp_rate;
}
if (!rate_diff)
- return rate;
+ return 0;
}
- return best_rate;
+ req->rate = best_rate;
+ return 0;
} else if (mux_hw && mux_ops && mux_ops->determine_rate) {
__clk_hw_set_clk(mux_hw, hw);
- return mux_ops->determine_rate(mux_hw, rate, min_rate,
- max_rate, best_parent_rate,
- best_parent_p);
+ return mux_ops->determine_rate(mux_hw, req);
} else {
pr_err("clk: clk_composite_determine_rate function called, but no mux or rate callback set!\n");
+ req->rate = 0;
return 0;
}
}