src/soc/intel/elkhartlake/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 PCH_DEVFN_I2C0:
  11                 return 0;
  12         case PCH_DEVFN_I2C1:
  13                 return 1;
  14         case PCH_DEVFN_I2C2:
  15                 return 2;
  16         case PCH_DEVFN_I2C3:
  17                 return 3;
  18         case PCH_DEVFN_I2C4:
  19                 return 4;
  20         case PCH_DEVFN_I2C5:
  21                 return 5;
  22         case PCH_DEVFN_I2C6:
  23                 return 6;
  24         case PCH_DEVFN_I2C7:
  25                 return 7;
  26         }
  27         return -1;
  28 }
  29
  30 int dw_i2c_soc_bus_to_devfn(unsigned int bus)
  31 {
  32         switch (bus) {
  33         case 0:
  34                 return PCH_DEVFN_I2C0;
  35         case 1:
  36                 return PCH_DEVFN_I2C1;
  37         case 2:
  38                 return PCH_DEVFN_I2C2;
  39         case 3:
  40                 return PCH_DEVFN_I2C3;
  41         case 4:
  42                 return PCH_DEVFN_I2C4;
  43         case 5:
  44                 return PCH_DEVFN_I2C5;
  45         case 6:
  46                 return PCH_DEVFN_I2C6;
  47         case 7:
  48                 return PCH_DEVFN_I2C7;
  49         }
  50         return -1;
  51 }