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path: root/drivers/mfd/kempld-core.c
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Diffstat (limited to 'drivers/mfd/kempld-core.c')
-rw-r--r--drivers/mfd/kempld-core.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/mfd/kempld-core.c b/drivers/mfd/kempld-core.c
index d3e2327..38917a8 100644
--- a/drivers/mfd/kempld-core.c
+++ b/drivers/mfd/kempld-core.c
@@ -322,9 +322,12 @@ static int kempld_detect_device(struct kempld_device_data *pld)
return -ENODEV;
}
- /* Release hardware mutex if aquired */
- if (!(index_reg & KEMPLD_MUTEX_KEY))
+ /* Release hardware mutex if acquired */
+ if (!(index_reg & KEMPLD_MUTEX_KEY)) {
iowrite8(KEMPLD_MUTEX_KEY, pld->io_index);
+ /* PXT and COMe-cPC2 boards may require a second release */
+ iowrite8(KEMPLD_MUTEX_KEY, pld->io_index);
+ }
mutex_unlock(&pld->lock);