diff options
author | Philipp Tomsich <philipp.tomsich@theobroma-systems.com> | 2018-01-08 11:15:08 +0100 |
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committer | Philipp Tomsich <philipp.tomsich@theobroma-systems.com> | 2018-01-28 17:12:35 +0100 |
commit | f7d1046da18fd03a047b5f4d290a8ab8550ebf73 (patch) | |
tree | 308343715a5434f6442d81c29e8c618d06f08923 /drivers/clk | |
parent | 1a7f6d4597646662022f3e67ceaaeff7a23459e5 (diff) |
clk: add clk_set_parent()
Clocks may support multiple parents: this change introduces an
optional operation on the clk-uclass to set a clock's parent.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: David Wu <david.wu@rock-chips.com>
Series-changes: 2
- Fixed David's email address.
Diffstat (limited to 'drivers/clk')
-rw-r--r-- | drivers/clk/clk-uclass.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/clk/clk-uclass.c b/drivers/clk/clk-uclass.c index fbea72091b..20ee0c5424 100644 --- a/drivers/clk/clk-uclass.c +++ b/drivers/clk/clk-uclass.c @@ -188,6 +188,18 @@ ulong clk_set_rate(struct clk *clk, ulong rate) return ops->set_rate(clk, rate); } +int clk_set_parent(struct clk *clk, struct clk *parent) +{ + const struct clk_ops *ops = clk_dev_ops(clk->dev); + + debug("%s(clk=%p, parent=%p)\n", __func__, clk, parent); + + if (!ops->set_parent) + return -ENOSYS; + + return ops->set_parent(clk, parent); +} + int clk_enable(struct clk *clk) { const struct clk_ops *ops = clk_dev_ops(clk->dev); |