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path: root/drivers/spi
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-rw-r--r--drivers/spi/spi-pl022.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c
index d165c0bfcab5..82a929f916fd 100644
--- a/drivers/spi/spi-pl022.c
+++ b/drivers/spi/spi-pl022.c
@@ -1512,8 +1512,12 @@ static void pump_messages(struct work_struct *work)
/* Lock queue and check for queue work */
spin_lock_irqsave(&pl022->queue_lock, flags);
if (list_empty(&pl022->queue) || !pl022->running) {
- if (pl022->busy)
+ if (pl022->busy) {
+ /* nothing more to do - disable spi/ssp and power off */
+ writew((readw(SSP_CR1(pl022->virtbase)) &
+ (~SSP_CR1_MASK_SSE)), SSP_CR1(pl022->virtbase));
pm_runtime_put(&pl022->adev->dev);
+ }
pl022->busy = false;
spin_unlock_irqrestore(&pl022->queue_lock, flags);
return;