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clk: check valid clock by clk_valid()

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Add valid check for clk->dev, it's useful when get optional
clock even when the clk point is valid, but its dev will be
NULL.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Ryder Lee <ryder.lee@mediatek.com>
This commit is contained in:
Chunfeng Yun 2020-01-09 11:35:06 +08:00 committed by Tom Rini
parent 0f9b2b3ddf
commit bd7c798605
1 changed files with 8 additions and 8 deletions
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16
drivers/clk/clk-uclass.c
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@ -391,7 +391,7 @@ int clk_free(struct clk *clk)
const struct clk_ops *ops;
debug("%s(clk=%p)\n", __func__, clk);
if (!clk)
if (!clk_valid(clk))
return 0;
ops = clk_dev_ops(clk->dev);
@ -406,7 +406,7 @@ ulong clk_get_rate(struct clk *clk)
const struct clk_ops *ops;
debug("%s(clk=%p)\n", __func__, clk);
if (!clk)
if (!clk_valid(clk))
return 0;
ops = clk_dev_ops(clk->dev);
@ -422,7 +422,7 @@ struct clk *clk_get_parent(struct clk *clk)
struct clk *pclk;
debug("%s(clk=%p)\n", __func__, clk);
if (!clk)
if (!clk_valid(clk))
return NULL;
pdev = dev_get_parent(clk->dev);
@ -439,7 +439,7 @@ long long clk_get_parent_rate(struct clk *clk)
struct clk *pclk;
debug("%s(clk=%p)\n", __func__, clk);
if (!clk)
if (!clk_valid(clk))
return 0;
pclk = clk_get_parent(clk);
@ -462,7 +462,7 @@ ulong clk_set_rate(struct clk *clk, ulong rate)
const struct clk_ops *ops;
debug("%s(clk=%p, rate=%lu)\n", __func__, clk, rate);
if (!clk)
if (!clk_valid(clk))
return 0;
ops = clk_dev_ops(clk->dev);
@ -477,7 +477,7 @@ int clk_set_parent(struct clk *clk, struct clk *parent)
const struct clk_ops *ops;
debug("%s(clk=%p, parent=%p)\n", __func__, clk, parent);
if (!clk)
if (!clk_valid(clk))
return 0;
ops = clk_dev_ops(clk->dev);
@ -494,7 +494,7 @@ int clk_enable(struct clk *clk)
int ret;
debug("%s(clk=%p)\n", __func__, clk);
if (!clk)
if (!clk_valid(clk))
return 0;
ops = clk_dev_ops(clk->dev);
@ -554,7 +554,7 @@ int clk_disable(struct clk *clk)
int ret;
debug("%s(clk=%p)\n", __func__, clk);
if (!clk)
if (!clk_valid(clk))
return 0;
ops = clk_dev_ops(clk->dev);