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-rw-r--r--drivers/clk/clk-divider.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/clk/clk-divider.c b/drivers/clk/clk-divider.c
index c57294563a98..b3c83966be18 100644
--- a/drivers/clk/clk-divider.c
+++ b/drivers/clk/clk-divider.c
@@ -240,6 +240,18 @@ static bool _is_best_div(struct clk_divider *divider,
240 return now <= rate && now > best; 240 return now <= rate && now > best;
241} 241}
242 242
243static int _next_div(struct clk_divider *divider, int div)
244{
245 div++;
246
247 if (divider->flags & CLK_DIVIDER_POWER_OF_TWO)
248 return __roundup_pow_of_two(div);
249 if (divider->table)
250 return _round_up_table(divider->table, div);
251
252 return div;
253}
254
243static int clk_divider_bestdiv(struct clk_hw *hw, unsigned long rate, 255static int clk_divider_bestdiv(struct clk_hw *hw, unsigned long rate,
244 unsigned long *best_parent_rate) 256 unsigned long *best_parent_rate)
245{ 257{
@@ -267,7 +279,7 @@ static int clk_divider_bestdiv(struct clk_hw *hw, unsigned long rate,
267 */ 279 */
268 maxdiv = min(ULONG_MAX / rate, maxdiv); 280 maxdiv = min(ULONG_MAX / rate, maxdiv);
269 281
270 for (i = 1; i <= maxdiv; i++) { 282 for (i = 1; i <= maxdiv; i = _next_div(divider, i)) {
271 if (!_is_valid_div(divider, i)) 283 if (!_is_valid_div(divider, i))
272 continue; 284 continue;
273 if (rate * i == parent_rate_saved) { 285 if (rate * i == parent_rate_saved) {