i2c: i801: Add support for Intel Tiger Lake

Add SMBUS PCI ID for Intel Tiger Lake -LP.
Signed-off-by: NJarkko Nikula <jarkko.nikula@linux.intel.com>
Reviewed-by: NJean Delvare <jdelvare@suse.de>
Signed-off-by: NWolfram Sang <wsa@the-dreams.de>

Documentation/i2c/busses/i2c-i801

@@ -38,6 +38,7 @@ Supported adapters:
   * Intel Ice Lake (PCH)
   * Intel Comet Lake (PCH)
   * Intel Elkhart Lake (PCH)
+  * Intel Tiger Lake (PCH)
    Datasheets: Publicly available at the Intel website
 
 On Intel Patsburg and later chipsets, both the normal host SMBus controller

drivers/i2c/busses/Kconfig

@@ -144,6 +144,7 @@ config I2C_I801
 	    Ice Lake (PCH)
 	    Comet Lake (PCH)
 	    Elkhart Lake (PCH)
+	    Tiger Lake (PCH)
 
 	  This driver can also be built as a module.  If so, the module
 	  will be called i2c-i801.

drivers/i2c/busses/i2c-i801.c

@@ -73,6 +73,7 @@
  * Ice Lake-LP (PCH)		0x34a3	32	hard	yes	yes	yes
  * Comet Lake (PCH)		0x02a3	32	hard	yes	yes	yes
  * Elkhart Lake (PCH)		0x4b23	32	hard	yes	yes	yes
+ * Tiger Lake-LP (PCH)		0xa0a3	32	hard	yes	yes	yes
  *
  * Features supported by this driver:
  * Software PEC				no
@@ -241,6 +242,7 @@
 #define PCI_DEVICE_ID_INTEL_WILDCATPOINT_LP_SMBUS	0x9ca2
 #define PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_SMBUS	0x9d23
 #define PCI_DEVICE_ID_INTEL_CANNONLAKE_LP_SMBUS		0x9da3
+#define PCI_DEVICE_ID_INTEL_TIGERLAKE_LP_SMBUS		0xa0a3
 #define PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_SMBUS	0xa123
 #define PCI_DEVICE_ID_INTEL_LEWISBURG_SMBUS		0xa1a3
 #define PCI_DEVICE_ID_INTEL_LEWISBURG_SSKU_SMBUS	0xa223
@@ -1075,6 +1077,7 @@ static const struct pci_device_id i801_ids[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICELAKE_LP_SMBUS) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_COMETLAKE_SMBUS) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ELKHART_LAKE_SMBUS) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_TIGERLAKE_LP_SMBUS) },
 	{ 0, }
 };
 
@@ -1710,6 +1713,7 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	case PCI_DEVICE_ID_INTEL_ICELAKE_LP_SMBUS:
 	case PCI_DEVICE_ID_INTEL_COMETLAKE_SMBUS:
 	case PCI_DEVICE_ID_INTEL_ELKHART_LAKE_SMBUS:
+	case PCI_DEVICE_ID_INTEL_TIGERLAKE_LP_SMBUS:
 		priv->features |= FEATURE_BLOCK_PROC;
 		priv->features |= FEATURE_I2C_BLOCK_READ;
 		priv->features |= FEATURE_IRQ;