clock->div_table[clock->cur_div_idx].div);
}
-static long cpg_sd_clock_round_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long *parent_rate)
+static int cpg_sd_clock_determine_rate(struct clk_hw *hw,
+ struct clk_rate_request *req)
{
unsigned long best_rate = ULONG_MAX, diff_min = ULONG_MAX;
struct sd_clock *clock = to_sd_clock(hw);
unsigned int i;
for (i = 0; i < clock->div_num; i++) {
- calc_rate = DIV_ROUND_CLOSEST(*parent_rate,
+ calc_rate = DIV_ROUND_CLOSEST(req->best_parent_rate,
clock->div_table[i].div);
- diff = calc_rate > rate ? calc_rate - rate : rate - calc_rate;
+ if (calc_rate < req->min_rate || calc_rate > req->max_rate)
+ continue;
+
+ diff = calc_rate > req->rate ? calc_rate - req->rate
+ : req->rate - calc_rate;
if (diff < diff_min) {
best_rate = calc_rate;
diff_min = diff;
}
}
- if (best_rate > LONG_MAX)
+ if (best_rate == ULONG_MAX)
return -EINVAL;
- return best_rate;
+ req->rate = best_rate;
+ return 0;
}
static int cpg_sd_clock_set_rate(struct clk_hw *hw, unsigned long rate,
.disable = cpg_sd_clock_disable,
.is_enabled = cpg_sd_clock_is_enabled,
.recalc_rate = cpg_sd_clock_recalc_rate,
- .round_rate = cpg_sd_clock_round_rate,
+ .determine_rate = cpg_sd_clock_determine_rate,
.set_rate = cpg_sd_clock_set_rate,
};