i2c: i801: Add support for Intel Comet Lake PCH-V

Add support for Intel Comet Lake PCH-V which is based on Intel Kaby
Lake. Difference between it and other Comet Lake variants is that former
uses previous iTCO version 4 and latter use version 6 like Intel Cannon
Lake PCH.

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index 44db3a9..ca4f096 100644 (file)
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -68,6 +68,7 @@
  * Elkhart Lake (PCH)          0x4b23  32      hard    yes     yes     yes
  * Tiger Lake-LP (PCH)         0xa0a3  32      hard    yes     yes     yes
  * Jasper Lake (SOC)           0x4da3  32      hard    yes     yes     yes
+ * Comet Lake-V (PCH)          0xa3a3  32      hard    yes     yes     yes
  *
  * Features supported by this driver:
  * Software PEC                                no
@@ -244,6 +245,7 @@
 #define PCI_DEVICE_ID_INTEL_LEWISBURG_SSKU_SMBUS       0xa223
 #define PCI_DEVICE_ID_INTEL_KABYLAKE_PCH_H_SMBUS       0xa2a3
 #define PCI_DEVICE_ID_INTEL_CANNONLAKE_H_SMBUS         0xa323
+#define PCI_DEVICE_ID_INTEL_COMETLAKE_V_SMBUS          0xa3a3
 
 struct i801_mux_config {
        char *gpio_chip;
@@ -1074,6 +1076,7 @@ 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_COMETLAKE_H_SMBUS) },
+       { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_COMETLAKE_V_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) },
        { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_JASPER_LAKE_SMBUS) },
@@ -1742,6 +1745,7 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id)
        case PCI_DEVICE_ID_INTEL_LEWISBURG_SSKU_SMBUS:
        case PCI_DEVICE_ID_INTEL_DNV_SMBUS:
        case PCI_DEVICE_ID_INTEL_KABYLAKE_PCH_H_SMBUS:
+       case PCI_DEVICE_ID_INTEL_COMETLAKE_V_SMBUS:
                priv->features |= FEATURE_BLOCK_PROC;
                priv->features |= FEATURE_I2C_BLOCK_READ;
                priv->features |= FEATURE_IRQ;