commit f5dccb15877b82a40950c6f752d5345c86189fc9
author Peter Tyser <ptyser@xes-inc.com> Mon Mar 10 16:34:51 2014 -0500
committer Lee Jones <lee.jones@linaro.org> Wed Mar 19 09:00:00 2014 +0000
tree 70ddb3e718a1f2924f21ab4d3129db4e3187cd69
parent 037b60f2ca9403d02cbee60ad0a10f3806f9dc4b

mfd: lpc_ich: Fix ACPI enable bitmask

The original bitmask of 0x10 was incorrect and would result in a write
to a reserved read-only bit instead of enabling the ACPI I/O
region.  Update it to the proper value of 0x80.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Tested-by: Rajat Jain <rajatjain@juniper.net>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

drivers/mfd/lpc_ich.c

diff --git a/drivers/mfd/lpc_ich.c b/drivers/mfd/lpc_ich.c
index 17eff09..2be85a4b 100644
--- a/drivers/mfd/lpc_ich.c
+++ b/drivers/mfd/lpc_ich.c
@@ -759,7 +759,7 @@
 	u8 reg_save;
 
 	pci_read_config_byte(dev, priv->acpi.ctrl, &reg_save);
-	pci_write_config_byte(dev, priv->acpi.ctrl, reg_save | 0x10);
+	pci_write_config_byte(dev, priv->acpi.ctrl, reg_save | 0x80);
 	priv->acpi.save = reg_save;
 }