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i2c: designware-pci: Add support for Elkhart Lake PSE I2C

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Add support for Intel(R) Programmable Services Engine (Intel(R) PSE) I2C
controller in Intel Elkhart Lake when interface is assigned to the host
processor.

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
This commit is contained in:
Jarkko Nikula 2019-08-15 17:29:44 +03:00 committed by Wolfram Sang
parent 21aa3983d6
commit 70fb95e213
1 changed files with 18 additions and 0 deletions
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18
drivers/i2c/busses/i2c-designware-pcidrv.c
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@ -33,6 +33,7 @@ enum dw_pci_ctl_id_t {
baytrail,
cherrytrail,
haswell,
elkhartlake,
};
struct dw_scl_sda_cfg {
@ -168,6 +169,14 @@ static struct dw_pci_controller dw_pci_controllers[] = {
.flags = MODEL_CHERRYTRAIL,
.scl_sda_cfg = &byt_config,
},
[elkhartlake] = {
.bus_num = -1,
.bus_cfg = INTEL_MID_STD_CFG | DW_IC_CON_SPEED_FAST,
.tx_fifo_depth = 32,
.rx_fifo_depth = 32,
.functionality = I2C_FUNC_10BIT_ADDR,
.clk_khz = 100000,
},
};
#ifdef CONFIG_PM
@ -340,6 +349,15 @@ static const struct pci_device_id i2_designware_pci_ids[] = {
{ PCI_VDEVICE(INTEL, 0x22C5), cherrytrail },
{ PCI_VDEVICE(INTEL, 0x22C6), cherrytrail },
{ PCI_VDEVICE(INTEL, 0x22C7), cherrytrail },
/* Elkhart Lake (PSE I2C) */
{ PCI_VDEVICE(INTEL, 0x4bb9), elkhartlake },
{ PCI_VDEVICE(INTEL, 0x4bba), elkhartlake },
{ PCI_VDEVICE(INTEL, 0x4bbb), elkhartlake },
{ PCI_VDEVICE(INTEL, 0x4bbc), elkhartlake },
{ PCI_VDEVICE(INTEL, 0x4bbd), elkhartlake },
{ PCI_VDEVICE(INTEL, 0x4bbe), elkhartlake },
{ PCI_VDEVICE(INTEL, 0x4bbf), elkhartlake },
{ PCI_VDEVICE(INTEL, 0x4bc0), elkhartlake },
{ 0,}
};
MODULE_DEVICE_TABLE(pci, i2_designware_pci_ids);