diff mbox series

[v6,11/11] clk: sunxi-ng: nkm: Prefer current parent rate

Message ID 20230807-pll-mipi_set_rate_parent-v6-11-f173239a4b59@oltmanns.dev (mailing list archive)
State Awaiting Upstream, archived
Headers show
Series clk: sunxi-ng: Consider alternative parent rates when determining NKM clock rate | expand

Commit Message

Frank Oltmanns Aug. 7, 2023, 12:43 p.m. UTC 
Similar to ccu_mp, if the current parent rate allows getting the ideal
rate, prefer to not change the parent clock's rate.

Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Frank Oltmanns <frank@oltmanns.dev>
---
 drivers/clk/sunxi-ng/ccu_nkm.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/clk/sunxi-ng/ccu_nkm.c b/drivers/clk/sunxi-ng/ccu_nkm.c
index a714dcf0dfc1..eed64547ad42 100644
--- a/drivers/clk/sunxi-ng/ccu_nkm.c
+++ b/drivers/clk/sunxi-ng/ccu_nkm.c
@@ -34,7 +34,8 @@  static unsigned long ccu_nkm_find_best_with_parent_adj(struct ccu_common *common
 
 				tmp_rate = tmp_parent * _n * _k / _m;
 
-				if (ccu_is_better_rate(common, rate, tmp_rate, best_rate)) {
+				if (ccu_is_better_rate(common, rate, tmp_rate, best_rate) ||
+				    (tmp_parent == *parent && tmp_rate == best_rate)) {
 					best_rate = tmp_rate;
 					best_parent_rate = tmp_parent;
 					best_n = _n;