i2c-eg20t: Support new device ML7223 IOH

Support new device OKI SEMICONDUCTOR ML7223 IOH(Input/Output Hub).
The ML7223 IOH is for MP(Media Phone) use.
The ML7223 is companion chip for Intel Atom E6xx series.
The ML7223 is completely compatible for Intel EG20T PCH.

Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>

2 files changed, 9 insertions, 3 deletions

diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 326652f673f7..697ffa86f2cc 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -671,15 +671,19 @@ config I2C_XILINX
           will be called xilinx_i2c.
 
 config I2C_EG20T
-        tristate "Intel EG20T PCH/OKI SEMICONDUCTOR ML7213 IOH"
+        tristate "Intel EG20T PCH / OKI SEMICONDUCTOR IOH(ML7213/ML7223)"
         depends on PCI
         help
           This driver is for PCH(Platform controller Hub) I2C of EG20T which
           is an IOH(Input/Output Hub) for x86 embedded processor.
           This driver can access PCH I2C bus device.
 
-          This driver also supports the ML7213, a companion chip for the
-          Atom E6xx series and compatible with the Intel EG20T PCH.
+          This driver also can be used for OKI SEMICONDUCTOR IOH(Input/
+          Output Hub), ML7213 and ML7223.
+          ML7213 IOH is for IVI(In-Vehicle Infotainment) use and ML7223 IOH is
+          for MP(Media Phone) use.
+          ML7213/ML7223 is companion chip for Intel Atom E6xx series.
+          ML7213/ML7223 is completely compatible for Intel EG20T PCH.
 
 comment "External I2C/SMBus adapter drivers"
 
diff --git a/drivers/i2c/busses/i2c-eg20t.c b/drivers/i2c/busses/i2c-eg20t.c
index 878a12026af2..8abfa4a03ce1 100644
--- a/drivers/i2c/busses/i2c-eg20t.c
+++ b/drivers/i2c/busses/i2c-eg20t.c
@@ -182,10 +182,12 @@ static DEFINE_MUTEX(pch_mutex);
 /* Definition for ML7213 by OKI SEMICONDUCTOR */
 #define PCI_VENDOR_ID_ROHM              0x10DB
 #define PCI_DEVICE_ID_ML7213_I2C        0x802D
+#define PCI_DEVICE_ID_ML7223_I2C        0x8010
 
 static struct pci_device_id __devinitdata pch_pcidev_id[] = {
         { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_PCH_I2C),   1, },
         { PCI_VDEVICE(ROHM, PCI_DEVICE_ID_ML7213_I2C), 2, },
+        { PCI_VDEVICE(ROHM, PCI_DEVICE_ID_ML7223_I2C), 1, },
         {0,}
 };