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>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c
index 5eab281a5be9..aab518ec2bbc 100644
--- a/drivers/spi/spi-pl022.c
+++ b/drivers/spi/spi-pl022.c
@@ -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);