MFD: ucb1x00-core: fix missing restore of io output data on resume

We were not restoring the UCB1x00 gpio output data on resume, resulting
in incorrect GPIO output data after a resume.  Add the missing register
write.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

diff --git a/drivers/mfd/ucb1x00-core.c b/drivers/mfd/ucb1x00-core.c
index b281217..8ebda97 100644 (file)
--- a/drivers/mfd/ucb1x00-core.c
+++ b/drivers/mfd/ucb1x00-core.c
@@ -687,6 +687,7 @@ static int ucb1x00_resume(struct mcp *mcp)
        struct ucb1x00 *ucb = mcp_get_drvdata(mcp);
        struct ucb1x00_dev *dev;
 
+       ucb1x00_reg_write(ucb, UCB_IO_DATA, ucb->io_out);
        ucb1x00_reg_write(ucb, UCB_IO_DIR, ucb->io_dir);
        mutex_lock(&ucb1x00_mutex);
        list_for_each_entry(dev, &ucb->devs, dev_node) {