lpc_sch: Add Intel Centerton Multifunction Device support

This patch adds the Intel Centerton processor DeviceID for the
Integrated Legacy Block (ILB).
The ILB provides GPIO, SMBus, and Watchdog functionality.

Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 9 insertions, 2 deletions

diff --git a/drivers/mfd/lpc_sch.c b/drivers/mfd/lpc_sch.c
index 27026eb924cd..9bf08393d747 100644
--- a/drivers/mfd/lpc_sch.c
+++ b/drivers/mfd/lpc_sch.c
@@ -36,6 +36,7 @@
 
 #define GPIOBASE        0x44
 #define GPIO_IO_SIZE    64
+#define GPIO_IO_SIZE_CENTERTON  128
 
 #define WDTBASE         0x84
 #define WDT_IO_SIZE     64
@@ -77,6 +78,7 @@ static struct mfd_cell tunnelcreek_cells[] = {
 static DEFINE_PCI_DEVICE_TABLE(lpc_sch_ids) = {
         { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SCH_LPC) },
         { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ITC_LPC) },
+        { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CENTERTON_ILB) },
         { 0, }
 };
 MODULE_DEVICE_TABLE(pci, lpc_sch_ids);
@@ -115,7 +117,11 @@ static int __devinit lpc_sch_probe(struct pci_dev *dev,
         }
 
         gpio_sch_resource.start = base_addr;
-        gpio_sch_resource.end = base_addr + GPIO_IO_SIZE - 1;
+
+        if (id->device == PCI_DEVICE_ID_INTEL_CENTERTON_ILB)
+                gpio_sch_resource.end = base_addr + GPIO_IO_SIZE_CENTERTON - 1;
+        else
+                gpio_sch_resource.end = base_addr + GPIO_IO_SIZE - 1;
 
         for (i=0; i < ARRAY_SIZE(lpc_sch_cells); i++)
                 lpc_sch_cells[i].id = id->device;
@@ -125,7 +131,8 @@ static int __devinit lpc_sch_probe(struct pci_dev *dev,
         if (ret)
                 goto out_dev;
 
-        if (id->device == PCI_DEVICE_ID_INTEL_ITC_LPC) {
+        if (id->device == PCI_DEVICE_ID_INTEL_ITC_LPC
+         || id->device == PCI_DEVICE_ID_INTEL_CENTERTON_ILB) {
                 pci_read_config_dword(dev, WDTBASE, &base_addr_cfg);
                 if (!(base_addr_cfg & (1 << 31))) {
                         dev_err(&dev->dev, "Decode of the WDT I/O range disabled\n");