diff options
| -rw-r--r-- | drivers/clk/clk.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index a5e0ab8bd6be..9d63163244d4 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -1341,7 +1341,19 @@ static int clk_core_determine_round_nolock(struct clk_core *core, if (!core) return 0; - req->rate = clamp(req->rate, req->min_rate, req->max_rate); + /* + * Some clock providers hand-craft their clk_rate_requests and + * might not fill min_rate and max_rate. + * + * If it's the case, clamping the rate is equivalent to setting + * the rate to 0 which is bad. Skip the clamping but complain so + * that it gets fixed, hopefully. + */ + if (!req->min_rate && !req->max_rate) + pr_warn("%s: %s: clk_rate_request has initialized min or max rate.\n", + __func__, core->name); + else + req->rate = clamp(req->rate, req->min_rate, req->max_rate); /* * At this point, core protection will be disabled |