Add Panther Point to the list of gpio controllers

The nm10 gpio driver is being modified to recognize the Panther Point
LPC device as one of valid GPIO controllers.

BUG=chrome-os-partner:8612
TEST=manual
 . build the new kernel
 . observe that the gpio driver gets installed:
    localhost ~ # dmesg | grep gpio
    [    7.020200] nm10_gpio version 0.04 built on Mar 22 2012 at 20:47:08
    [    7.020220] gpiochip_find_base: found new base at 160
 . enable the write protect GPIO (hardkernel#57)
    localhost ~ # echo 217 > /sys/class/gpio/export
 . examine its value
    localhost ~ # cat /sys/class/gpio/gpio217/value
    0
 . short the pins and examine the value again
   localhost ~ # cat /sys/class/gpio/gpio217/value
   1
 . observe value change when the pins status changes

Change-Id: Idf354a64d5b964a37ee72b8e14fcedd3aab83654
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/18928

drivers/gpio/nm10_gpio.c

@@ -389,6 +389,8 @@ static struct pci_device_id nm10_gpio_ids[] = {
 		PCI_DEVICE_ID_INTEL_COUGARPOINT_LPC_C206)},
 	{PCI_DEVICE(PCI_VENDOR_ID_INTEL,
 		PCI_DEVICE_ID_INTEL_COUGARPOINT_LPC_H61)},
+	{PCI_DEVICE(PCI_VENDOR_ID_INTEL,
+		    PCI_DEVICE_ID_INTEL_PANTHERPOINT_LPC_C216)},
 	{0,}
 };
 

include/linux/pci_ids.h

@@ -2555,6 +2555,7 @@
 #define PCI_DEVICE_ID_INTEL_PATSBURG_LPC_1	0x1d41
 #define PCI_DEVICE_ID_INTEL_PANTHERPOINT_XHCI	0x1e31
 #define PCI_DEVICE_ID_INTEL_PANTHERPOINT_LPC_MIN	0x1e40
+#define PCI_DEVICE_ID_INTEL_PANTHERPOINT_LPC_C216	0x1e55
 #define PCI_DEVICE_ID_INTEL_PANTHERPOINT_LPC_MAX	0x1e5f
 #define PCI_DEVICE_ID_INTEL_DH89XXCC_LPC_MIN	0x2310
 #define PCI_DEVICE_ID_INTEL_DH89XXCC_LPC_MAX	0x231f