Commit f5dccb15 authored Mar 10, 2014 by Peter Tyser Committed by Lee Jones Mar 19, 2014

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>

parent 037b60f2

drivers/mfd/lpc_ich.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -759,7 +759,7 @@ static void lpc_ich_enable_acpi_space(struct pci_dev *dev)
		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;
		}

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