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| author | Stephen Boyd <sboyd@codeaurora.org> | 2015-05-07 11:32:49 -0700 |
|---|---|---|
| committer | Stephen Boyd <sboyd@codeaurora.org> | 2015-05-07 11:32:49 -0700 |
| commit | 18e70efe3e2a27b53a63fb4454cc6c9e1dc0db49 (patch) | |
| tree | 5c867e320c38b7a0b4b406e477a4ce787846a3fa /drivers/clk/clk.c | |
| parent | c542a54fcb5591e7637f71fa400065853ce54ee0 (diff) | |
| parent | d2a5d46b167a9a8231264daf80165b739aecf1d7 (diff) | |
| download | linux-18e70efe3e2a27b53a63fb4454cc6c9e1dc0db49.tar.gz | |
Merge branch 'clk-fixes' into clk-next
Diffstat (limited to 'drivers/clk/clk.c')
| -rw-r--r-- | drivers/clk/clk.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index 4a2e9478edbd..9e9d18cadeee 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -1097,8 +1097,10 @@ static struct clk_core *__clk_set_parent_before(struct clk_core *core, */ if (core->prepare_count) { clk_core_prepare(parent); + flags = clk_enable_lock(); clk_core_enable(parent); clk_core_enable(core); + clk_enable_unlock(flags); } /* update the clk tree topology */ @@ -1113,13 +1115,17 @@ static void __clk_set_parent_after(struct clk_core *core, struct clk_core *parent, struct clk_core *old_parent) { + unsigned long flags; + /* * Finish the migration of prepare state and undo the changes done * for preventing a race with clk_enable(). */ if (core->prepare_count) { + flags = clk_enable_lock(); clk_core_disable(core); clk_core_disable(old_parent); + clk_enable_unlock(flags); clk_core_unprepare(old_parent); } } @@ -1147,8 +1153,10 @@ static int __clk_set_parent(struct clk_core *core, struct clk_core *parent, clk_enable_unlock(flags); if (core->prepare_count) { + flags = clk_enable_lock(); clk_core_disable(core); clk_core_disable(parent); + clk_enable_unlock(flags); clk_core_unprepare(parent); } return ret; |