diff options
| -rw-r--r-- | drivers/clk/clk.c | 16 | ||||
| -rw-r--r-- | include/linux/clk-provider.h | 2 |
2 files changed, 18 insertions, 0 deletions
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index 6b358448885b..ec518dc5d462 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -684,6 +684,22 @@ static void clk_core_get_boundaries(struct clk_core *core, *max_rate = min(*max_rate, clk_user->max_rate); } +/* + * clk_hw_get_rate_range() - returns the clock rate range for a hw clk + * @hw: the hw clk we want to get the range from + * @min_rate: pointer to the variable that will hold the minimum + * @max_rate: pointer to the variable that will hold the maximum + * + * Fills the @min_rate and @max_rate variables with the minimum and + * maximum that clock can reach. + */ +void clk_hw_get_rate_range(struct clk_hw *hw, unsigned long *min_rate, + unsigned long *max_rate) +{ + clk_core_get_boundaries(hw->core, min_rate, max_rate); +} +EXPORT_SYMBOL_GPL(clk_hw_get_rate_range); + static bool clk_core_check_boundaries(struct clk_core *core, unsigned long min_rate, unsigned long max_rate) diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index 8bce6c524f29..8724a3547a79 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -1267,6 +1267,8 @@ int clk_mux_determine_rate_flags(struct clk_hw *hw, struct clk_rate_request *req, unsigned long flags); void clk_hw_reparent(struct clk_hw *hw, struct clk_hw *new_parent); +void clk_hw_get_rate_range(struct clk_hw *hw, unsigned long *min_rate, + unsigned long *max_rate); void clk_hw_set_rate_range(struct clk_hw *hw, unsigned long min_rate, unsigned long max_rate); |