src/soc/intel/pantherlake/i2c.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <device/device.h>
   4 #include <drivers/i2c/designware/dw_i2c.h>
   5 #include <soc/pci_devs.h>
   6
   7 int dw_i2c_soc_devfn_to_bus(unsigned int devfn)
   8 {
   9         switch (devfn) {
  10         case PCI_DEVFN_I2C0:
  11                 return 0;
  12         case PCI_DEVFN_I2C1:
  13                 return 1;
  14         case PCI_DEVFN_I2C2:
  15                 return 2;
  16         case PCI_DEVFN_I2C3:
  17                 return 3;
  18         case PCI_DEVFN_I2C4:
  19                 return 4;
  20         case PCI_DEVFN_I2C5:
  21                 return 5;
  22         }
  23         return -1;
  24 }
  25
  26 int dw_i2c_soc_bus_to_devfn(unsigned int bus)
  27 {
  28         switch (bus) {
  29         case 0:
  30                 return PCI_DEVFN_I2C0;
  31         case 1:
  32                 return PCI_DEVFN_I2C1;
  33         case 2:
  34                 return PCI_DEVFN_I2C2;
  35         case 3:
  36                 return PCI_DEVFN_I2C3;
  37         case 4:
  38                 return PCI_DEVFN_I2C4;
  39         case 5:
  40                 return PCI_DEVFN_I2C5;
  41         }
  42         return -1;
  43 }