i2c: i801: Add support for Intel Elkhart Lake

Add PCI ID for Intel Elkhart 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/Documentation/i2c/busses/i2c-i801 b/Documentation/i2c/busses/i2c-i801
index cafb7e05f951ed3852cbb0b2ec7dbc9de1d861a3..d247edcb0f9936f7e6227f26c7714e726246c053 100644 (file)
--- a/Documentation/i2c/busses/i2c-i801
+++ b/Documentation/i2c/busses/i2c-i801
@@ -37,6 +37,7 @@ Supported adapters:
   * Intel Cedar Fork (PCH)
   * Intel Ice Lake (PCH)
   * Intel Comet Lake (PCH)
+  * Intel Elkhart Lake (PCH)
    Datasheets: Publicly available at the Intel website
 
 On Intel Patsburg and later chipsets, both the normal host SMBus controller

diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 0621f3f59213627e40d83d2397c389f38cab2de8..07c86cd058cd8d73ecb8116f8fb73110e7de7965 100644 (file)
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -143,6 +143,7 @@ config I2C_I801
            Cedar Fork (PCH)
            Ice Lake (PCH)
            Comet Lake (PCH)
+           Elkhart Lake (PCH)
 
          This driver can also be built as a module.  If so, the module
          will be called i2c-i801.

diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index 70d48f4fba95106e6c3a9079e2d9e8adf405c570..82005291bcf3aed9c6bb398f29c883acadc598d8 100644 (file)
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -72,6 +72,7 @@
  * Cedar Fork (PCH)            0x18df  32      hard    yes     yes     yes
  * 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
  *
  * Features supported by this driver:
  * Software PEC                                no
@@ -244,6 +245,7 @@
 #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_SMBUS            0x02a3
+#define PCI_DEVICE_ID_INTEL_ELKHART_LAKE_SMBUS         0x4b23
 
 struct i801_mux_config {
        char *gpio_chip;
@@ -1071,6 +1073,7 @@ static const struct pci_device_id i801_ids[] = {
        { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CANNONLAKE_LP_SMBUS) },
        { 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) },
        { 0, }
 };
 
@@ -1683,6 +1686,7 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id)
        case PCI_DEVICE_ID_INTEL_KABYLAKE_PCH_H_SMBUS:
        case PCI_DEVICE_ID_INTEL_ICELAKE_LP_SMBUS:
        case PCI_DEVICE_ID_INTEL_COMETLAKE_SMBUS:
+       case PCI_DEVICE_ID_INTEL_ELKHART_LAKE_SMBUS:
                priv->features |= FEATURE_BLOCK_PROC;
                priv->features |= FEATURE_I2C_BLOCK_READ;
                priv->features |= FEATURE_IRQ;