clk: divider: remove round_rate() in favor of determine_rate()

This driver implements both the determine_rate() and round_rate() clk
ops, and the round_rate() clk ops is deprecated. When both are defined,
clk_core_determine_round_nolock() from the clk core will only use the
determine_rate() clk ops. Also all clk drivers that directly calls
divider's round_rate() have been migrated over to determine_rate(). So
let's remove the round_rate() clk ops.

Reviewed-by: Alexander Sverdlin <[e-mail]>
Reviewed-by: Geert Uytterhoeven <[e-mail]>
Signed-off-by: Brian Masney <[e-mail]>

drivers/clk/clk-divider.c

···
 }
 EXPORT_SYMBOL_GPL(divider_ro_round_rate_parent);
 
-static long clk_divider_round_rate(struct clk_hw *hw, unsigned long rate,
-				unsigned long *prate)
-{
-	struct clk_divider *divider = to_clk_divider(hw);
-
-	/* if read only, just return current value */
-	if (divider->flags & CLK_DIVIDER_READ_ONLY) {
-		u32 val;
-
-		val = clk_div_readl(divider) >> divider->shift;
-		val &= clk_div_mask(divider->width);
-
-		return divider_ro_round_rate(hw, rate, prate, divider->table,
-					     divider->width, divider->flags,
-					     val);
-	}
-
-	return divider_round_rate(hw, rate, prate, divider->table,
-				  divider->width, divider->flags);
-}
-
 static int clk_divider_determine_rate(struct clk_hw *hw,
 				      struct clk_rate_request *req)
 {
···
 
 const struct clk_ops clk_divider_ops = {
 	.recalc_rate = clk_divider_recalc_rate,
-	.round_rate = clk_divider_round_rate,
 	.determine_rate = clk_divider_determine_rate,
 	.set_rate = clk_divider_set_rate,
 };
···
 
 const struct clk_ops clk_divider_ro_ops = {
 	.recalc_rate = clk_divider_recalc_rate,
-	.round_rate = clk_divider_round_rate,
 	.determine_rate = clk_divider_determine_rate,
 };
 EXPORT_SYMBOL_GPL(clk_divider_ro_ops);