i2c: i801: Add support for Intel Ice Lake

Intel Ice Lake has the same SMBus host controller than Intel Cannon
Lake. Add the PCI ID to the drivers list of supported devices.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
[jarkko.nikula@linux.intel.com: Add entries to Documentation and Kconfig]
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 ca396748a10db8b2d47ea09af6a7c3f46dd043a3..d1ee484a787d1b476cf13bcf7d7b53ac084fb63e 100644 (file)
--- a/Documentation/i2c/busses/i2c-i801
+++ b/Documentation/i2c/busses/i2c-i801
@@ -35,6 +35,7 @@ Supported adapters:
   * Intel Gemini Lake (SOC)
   * Intel Cannon Lake (PCH)
   * Intel Cedar Fork (PCH)
+  * Intel Ice 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 aa19e3e053b18d40db12cc4fa7dc838189e8d223..e7a4d288c8b7d32768bd00faad29048a10e3626a 100644 (file)
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -130,6 +130,7 @@ config I2C_I801
            Gemini Lake (SOC)
            Cannon Lake (PCH)
            Cedar Fork (PCH)
+           Ice 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 aa726607645ee6c5cb2565d645a45da71982c306..941c223f64914450fc2e2d76a293cd6202441b0b 100644 (file)
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -70,6 +70,7 @@
  * Cannon Lake-H (PCH)         0xa323  32      hard    yes     yes     yes
  * Cannon Lake-LP (PCH)                0x9da3  32      hard    yes     yes     yes
  * Cedar Fork (PCH)            0x18df  32      hard    yes     yes     yes
+ * Ice Lake-LP (PCH)           0x34a3  32      hard    yes     yes     yes
  *
  * Features supported by this driver:
  * Software PEC                                no
@@ -220,6 +221,7 @@
 #define PCI_DEVICE_ID_INTEL_DH89XXCC_SMBUS             0x2330
 #define PCI_DEVICE_ID_INTEL_COLETOCREEK_SMBUS          0x23b0
 #define PCI_DEVICE_ID_INTEL_GEMINILAKE_SMBUS           0x31d4
+#define PCI_DEVICE_ID_INTEL_ICELAKE_LP_SMBUS           0x34a3
 #define PCI_DEVICE_ID_INTEL_5_3400_SERIES_SMBUS                0x3b30
 #define PCI_DEVICE_ID_INTEL_BROXTON_SMBUS              0x5ad4
 #define PCI_DEVICE_ID_INTEL_LYNXPOINT_SMBUS            0x8c22
@@ -1034,6 +1036,7 @@ static const struct pci_device_id i801_ids[] = {
        { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_KABYLAKE_PCH_H_SMBUS) },
        { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CANNONLAKE_H_SMBUS) },
        { 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) },
        { 0, }
 };
 
@@ -1518,6 +1521,7 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id)
        case PCI_DEVICE_ID_INTEL_CDF_SMBUS:
        case PCI_DEVICE_ID_INTEL_DNV_SMBUS:
        case PCI_DEVICE_ID_INTEL_KABYLAKE_PCH_H_SMBUS:
+       case PCI_DEVICE_ID_INTEL_ICELAKE_LP_SMBUS:
                priv->features |= FEATURE_I2C_BLOCK_READ;
                priv->features |= FEATURE_IRQ;
                priv->features |= FEATURE_SMBUS_PEC;