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spi/pl022: enable runtime PM 

If we're gonna use runtime PM it's a pretty good idea to actually
enable it in probe() and disable it in remove() too, so it
gets used for real. Up until now we only fooled around with the
reference count.

Cc: Vinit Shenoy <vinit.shenoy@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2012-06-12 16:14:51 +02:00
parent 42f978c3ef
commit 2fb30d1147
1 changed files with 4 additions and 0 deletions
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4
drivers/spi/spi-pl022.c
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@ -2053,6 +2053,9 @@ pl022_probe(struct amba_device *adev, const struct amba_id *id)
printk(KERN_INFO "pl022: mapped registers from 0x%08x to %p\n",
adev->res.start, pl022->virtbase);
pm_runtime_enable(dev);
pm_runtime_resume(dev);
pl022->clk = clk_get(&adev->dev, NULL);
if (IS_ERR(pl022->clk)) {
status = PTR_ERR(pl022->clk);
@ -2163,6 +2166,7 @@ pl022_remove(struct amba_device *adev)
clk_disable(pl022->clk);
clk_unprepare(pl022->clk);
clk_put(pl022->clk);
pm_runtime_disable(&adev->dev);
iounmap(pl022->virtbase);
amba_release_regions(adev);
tasklet_disable(&pl022->pump_transfers);