clk: stm32mp1: Switch to clk_divider.determine_rate

.determine_rate is meant to replace .round_rate in CCF in the future.
Switch over to .determine_rate now that clk_divider_ops has gained
support for that.

Cc: Maxime Coquelin <[e-mail]>
Cc: Alexandre Torgue <[e-mail]>
Cc: [e-mail]
Signed-off-by: Martin Blumenstingl <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Stephen Boyd <[e-mail]>

drivers/clk/clk-stm32mp1.c

···
 
 static int clk_divider_rtc_determine_rate(struct clk_hw *hw, struct clk_rate_request *req)
 {
-	unsigned long best_parent_rate = req->best_parent_rate;
+	if (req->best_parent_hw == clk_hw_get_parent_by_index(hw, HSE_RTC))
+		return clk_divider_ops.determine_rate(hw, req);
 
-	if (req->best_parent_hw == clk_hw_get_parent_by_index(hw, HSE_RTC)) {
-		req->rate = clk_divider_ops.round_rate(hw, req->rate, &best_parent_rate);
-		req->best_parent_rate = best_parent_rate;
-	} else {
-		req->rate = best_parent_rate;
-	}
+	req->rate = req->best_parent_rate;
 
 	return 0;
 }