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author | Stephen Boyd <sboyd@codeaurora.org> | 2015-06-25 15:55:14 -0700 |
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committer | Michael Turquette <mturquette@baylibre.com> | 2015-08-24 16:48:42 -0700 |
commit | 1a9c069cb2d28bb72fefee509e0d26f92d7f7166 (patch) | |
tree | 79d1002ccc0982637da9404aa5f45e0302240729 /drivers/clk/clk.c | |
parent | bea047e075784471461c4338d0ffa45cb1378d67 (diff) | |
download | linux-1a9c069cb2d28bb72fefee509e0d26f92d7f7166.tar.gz linux-1a9c069cb2d28bb72fefee509e0d26f92d7f7166.tar.bz2 linux-1a9c069cb2d28bb72fefee509e0d26f92d7f7166.zip |
clk: Add clk_hw_*() APIs for use by clk providers
clk providers shouldn't need to use the consumer APIs (clk.h).
Add provider APIs to replace the __clk_*() APIs that take a
struct clk_hw as their first argument instead of a struct clk.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Diffstat (limited to 'drivers/clk/clk.c')
-rw-r--r-- | drivers/clk/clk.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index 4912c2e55e2c..a30fd30f4948 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -278,6 +278,12 @@ const char *__clk_get_name(struct clk *clk) } EXPORT_SYMBOL_GPL(__clk_get_name); +const char *clk_hw_get_name(struct clk_hw *hw) +{ + return hw->core->name; +} +EXPORT_SYMBOL_GPL(clk_hw_get_name); + struct clk_hw *__clk_get_hw(struct clk *clk) { return !clk ? NULL : clk->core->hw; @@ -290,6 +296,12 @@ u8 __clk_get_num_parents(struct clk *clk) } EXPORT_SYMBOL_GPL(__clk_get_num_parents); +unsigned int clk_hw_get_num_parents(struct clk_hw *hw) +{ + return hw->core->num_parents; +} +EXPORT_SYMBOL_GPL(clk_hw_get_num_parents); + struct clk *__clk_get_parent(struct clk *clk) { if (!clk) @@ -300,6 +312,12 @@ struct clk *__clk_get_parent(struct clk *clk) } EXPORT_SYMBOL_GPL(__clk_get_parent); +struct clk_hw *clk_hw_get_parent(struct clk_hw *hw) +{ + return hw->core->parent ? hw->core->parent->hw : NULL; +} +EXPORT_SYMBOL_GPL(clk_hw_get_parent); + static struct clk_core *__clk_lookup_subtree(const char *name, struct clk_core *core) { @@ -370,6 +388,16 @@ struct clk *clk_get_parent_by_index(struct clk *clk, u8 index) } EXPORT_SYMBOL_GPL(clk_get_parent_by_index); +struct clk_hw *clk_hw_get_parent_by_index(struct clk_hw *hw, unsigned int index) +{ + struct clk_core *parent; + + parent = clk_core_get_parent_by_index(hw->core, index); + + return !parent ? NULL : parent->hw; +} +EXPORT_SYMBOL_GPL(clk_hw_get_parent_by_index); + unsigned int __clk_get_enable_count(struct clk *clk) { return !clk ? 0 : clk->core->enable_count; @@ -405,6 +433,12 @@ unsigned long __clk_get_rate(struct clk *clk) } EXPORT_SYMBOL_GPL(__clk_get_rate); +unsigned long clk_hw_get_rate(struct clk_hw *hw) +{ + return clk_core_get_rate_nolock(hw->core); +} +EXPORT_SYMBOL_GPL(clk_hw_get_rate); + static unsigned long __clk_get_accuracy(struct clk_core *core) { if (!core) @@ -419,6 +453,12 @@ unsigned long __clk_get_flags(struct clk *clk) } EXPORT_SYMBOL_GPL(__clk_get_flags); +unsigned long clk_hw_get_flags(struct clk_hw *hw) +{ + return hw->core->flags; +} +EXPORT_SYMBOL_GPL(clk_hw_get_flags); + bool __clk_is_prepared(struct clk *clk) { if (!clk) @@ -427,6 +467,11 @@ bool __clk_is_prepared(struct clk *clk) return clk_core_is_prepared(clk->core); } +bool clk_hw_is_prepared(struct clk_hw *hw) +{ + return clk_core_is_prepared(hw->core); +} + bool __clk_is_enabled(struct clk *clk) { if (!clk) @@ -861,6 +906,22 @@ unsigned long __clk_round_rate(struct clk *clk, unsigned long rate) } EXPORT_SYMBOL_GPL(__clk_round_rate); +unsigned long clk_hw_round_rate(struct clk_hw *hw, unsigned long rate) +{ + int ret; + struct clk_rate_request req; + + clk_core_get_boundaries(hw->core, &req.min_rate, &req.max_rate); + req.rate = rate; + + ret = clk_core_round_rate_nolock(hw->core, &req); + if (ret) + return 0; + + return req.rate; +} +EXPORT_SYMBOL_GPL(clk_hw_round_rate); + /** * clk_round_rate - round the given rate for a clk * @clk: the clk for which we are rounding a rate |