diff options
Diffstat (limited to 'drivers/clk/clk.c')
-rw-r--r-- | drivers/clk/clk.c | 42 |
1 files changed, 14 insertions, 28 deletions
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index 07a27b65b773..ed119182aa1b 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -2332,15 +2332,19 @@ int clk_set_rate_exclusive(struct clk *clk, unsigned long rate) } EXPORT_SYMBOL_GPL(clk_set_rate_exclusive); -static int clk_set_rate_range_nolock(struct clk *clk, - unsigned long min, - unsigned long max) +/** + * clk_set_rate_range - set a rate range for a clock source + * @clk: clock source + * @min: desired minimum clock rate in Hz, inclusive + * @max: desired maximum clock rate in Hz, inclusive + * + * Returns success (0) or negative errno. + */ +int clk_set_rate_range(struct clk *clk, unsigned long min, unsigned long max) { int ret = 0; unsigned long old_min, old_max, rate; - lockdep_assert_held(&prepare_lock); - if (!clk) return 0; @@ -2353,6 +2357,8 @@ static int clk_set_rate_range_nolock(struct clk *clk, return -EINVAL; } + clk_prepare_lock(); + if (clk->exclusive_count) clk_core_rate_unprotect(clk->core); @@ -2396,28 +2402,6 @@ out: if (clk->exclusive_count) clk_core_rate_protect(clk->core); - return ret; -} - -/** - * clk_set_rate_range - set a rate range for a clock source - * @clk: clock source - * @min: desired minimum clock rate in Hz, inclusive - * @max: desired maximum clock rate in Hz, inclusive - * - * Return: 0 for success or negative errno on failure. - */ -int clk_set_rate_range(struct clk *clk, unsigned long min, unsigned long max) -{ - int ret; - - if (!clk) - return 0; - - clk_prepare_lock(); - - ret = clk_set_rate_range_nolock(clk, min, max); - clk_prepare_unlock(); return ret; @@ -4419,7 +4403,9 @@ void __clk_put(struct clk *clk) } hlist_del(&clk->clks_node); - clk_set_rate_range_nolock(clk, 0, ULONG_MAX); + if (clk->min_rate > clk->core->req_rate || + clk->max_rate < clk->core->req_rate) + clk_core_set_rate_nolock(clk->core, clk->core->req_rate); owner = clk->core->owner; kref_put(&clk->core->ref, __clk_release); |