return (unsigned long)rate;
}
-static long si5351_msynth_round_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long *parent_rate)
+static int si5351_msynth_determine_rate(struct clk_hw *hw,
+ struct clk_rate_request *req)
{
struct si5351_hw_data *hwdata =
container_of(hw, struct si5351_hw_data, hw);
+ unsigned long rate = req->rate;
unsigned long long lltmp;
unsigned long a, b, c;
int divby4;
b = 0;
c = 1;
- *parent_rate = a * rate;
+ req->best_parent_rate = a * rate;
} else if (hwdata->num >= 6) {
/* determine the closest integer divider */
- a = DIV_ROUND_CLOSEST(*parent_rate, rate);
+ a = DIV_ROUND_CLOSEST(req->best_parent_rate, rate);
if (a < SI5351_MULTISYNTH_A_MIN)
a = SI5351_MULTISYNTH_A_MIN;
if (a > SI5351_MULTISYNTH67_A_MAX)
}
/* determine integer part of divider equation */
- a = *parent_rate / rate;
+ a = req->best_parent_rate / rate;
if (a < SI5351_MULTISYNTH_A_MIN)
a = SI5351_MULTISYNTH_A_MIN;
if (a > SI5351_MULTISYNTH_A_MAX)
/* find best approximation for b/c = fVCO mod fOUT */
denom = 1000 * 1000;
- lltmp = (*parent_rate) % rate;
+ lltmp = req->best_parent_rate % rate;
lltmp *= denom;
do_div(lltmp, rate);
rfrac = (unsigned long)lltmp;
}
/* recalculate rate by fOUT = fIN / (a + b/c) */
- lltmp = *parent_rate;
+ lltmp = req->best_parent_rate;
lltmp *= c;
do_div(lltmp, a * c + b);
rate = (unsigned long)lltmp;
dev_dbg(&hwdata->drvdata->client->dev,
"%s - %s: a = %lu, b = %lu, c = %lu, divby4 = %d, parent_rate = %lu, rate = %lu\n",
__func__, clk_hw_get_name(hw), a, b, c, divby4,
- *parent_rate, rate);
+ req->best_parent_rate, rate);
- return rate;
+ req->rate = rate;
+
+ return 0;
}
static int si5351_msynth_set_rate(struct clk_hw *hw, unsigned long rate,
.set_parent = si5351_msynth_set_parent,
.get_parent = si5351_msynth_get_parent,
.recalc_rate = si5351_msynth_recalc_rate,
- .round_rate = si5351_msynth_round_rate,
+ .determine_rate = si5351_msynth_determine_rate,
.set_rate = si5351_msynth_set_rate,
};