On Thu, Feb 05, 2015 at 02:14:01PM -0800, Stephen Boyd wrote:
> Actually we can bury the __clk_create_clk() inside
> __of_clk_get_from_provider(). We should also move __clk_get() into there
> because right now we have a hole where whoever calls
> of_clk_get_from_provider() never calls __clk_get() on the clk, leading
> to possible badness. v2 coming soon.
There's some other issues here too...
sound/soc/kirkwood/kirkwood-i2s.c:
priv->clk = devm_clk_get(&pdev->dev, np ? "internal" : NULL);
...
priv->extclk = devm_clk_get(&pdev->dev, "extclk");
if (IS_ERR(priv->extclk)) {
...
} else {
if (priv->extclk == priv->clk) {
devm_clk_put(&pdev->dev, priv->extclk);
priv->extclk = ERR_PTR(-EINVAL);
} else {
dev_info(&pdev->dev, "found external clock\n");
clk_prepare_enable(priv->extclk);
soc_dai = kirkwood_i2s_dai_extclk;
}
It should be fine provided your "trick" is only done for DT clocks,
but not for legacy - with legacy, a NULL in the clkdev tables will
match both these requests, hence the need to compare the clk_get()
return value to tell whether we get the same clock.
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