i2c: i801: Add support for Intel Cannon Lake

Added SMBUS PCI Ids for SMBUS for Cannon Lake PCH.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
[jarkko.nikula@linux.intel.com: Add entries to Documentation and Kconfig.
Cover Cannon Lake-H too]
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

diff --git a/Documentation/i2c/busses/i2c-i801 b/Documentation/i2c/busses/i2c-i801
index 820d9040de1640865e6246f6dba6f758abb8e088..0500193434cb2957eec34124d621ccc176eac555 100644 (file)
--- a/Documentation/i2c/busses/i2c-i801
+++ b/Documentation/i2c/busses/i2c-i801
@@ -34,6 +34,8 @@ Supported adapters:
   * Intel Broxton (SOC)
   * Intel Lewisburg (PCH)
   * Intel Gemini Lake (SOC)
+  * Intel Cannon Lake-H (PCH)
+  * Intel Cannon Lake-LP (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 144cbadc7c728d38661cd231f704751cce6b0227..ed7106e48ba4f3c6b8301b85e5c3ac889f0baa42 100644 (file)
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -129,6 +129,8 @@ config I2C_I801
            Broxton (SOC)
            Lewisburg (PCH)
            Gemini Lake (SOC)
+           Cannon Lake-H (PCH)
+           Cannon Lake-LP (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 6484fa6dbb84a35df7d90df5b595ac5db74ea099..c9536e17d6ff035243eba69d47a41f12d6bc4460 100644 (file)
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -66,6 +66,8 @@
  * Lewisburg Supersku (PCH)    0xa223  32      hard    yes     yes     yes
  * Kaby Lake PCH-H (PCH)       0xa2a3  32      hard    yes     yes     yes
  * Gemini Lake (SOC)           0x31d4  32      hard    yes     yes     yes
+ * Cannon Lake-H (PCH)         0xa323  32      hard    yes     yes     yes
+ * Cannon Lake-LP (PCH)                0x9da3  32      hard    yes     yes     yes
  *
  * Features supported by this driver:
  * Software PEC                                no
@@ -226,10 +228,12 @@
 #define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_SMBUS         0x9c22
 #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_SUNRISEPOINT_H_SMBUS       0xa123
 #define PCI_DEVICE_ID_INTEL_LEWISBURG_SMBUS            0xa1a3
 #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
 
 struct i801_mux_config {
        char *gpio_chip;
@@ -1026,6 +1030,8 @@ static const struct pci_device_id i801_ids[] = {
        { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_LEWISBURG_SMBUS) },
        { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_LEWISBURG_SSKU_SMBUS) },
        { 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) },
        { 0, }
 };
 
@@ -1499,6 +1505,8 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id)
        switch (dev->device) {
        case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_SMBUS:
        case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_SMBUS:
+       case PCI_DEVICE_ID_INTEL_CANNONLAKE_H_SMBUS:
+       case PCI_DEVICE_ID_INTEL_CANNONLAKE_LP_SMBUS:
        case PCI_DEVICE_ID_INTEL_LEWISBURG_SMBUS:
        case PCI_DEVICE_ID_INTEL_LEWISBURG_SSKU_SMBUS:
        case PCI_DEVICE_ID_INTEL_DNV_SMBUS: