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i2c: i801: Add support for Intel Elkhart Lake 

Add PCI ID for Intel Elkhart Lake PCH.

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>
This commit is contained in:
Jarkko Nikula 2019-06-20 13:51:26 +03:00 committed by Wolfram Sang
parent 315cd67c94
commit 9be1485acc
3 changed files with 6 additions and 0 deletions
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1
Documentation/i2c/busses/i2c-i801
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@ -37,6 +37,7 @@ Supported adapters:
* Intel Cedar Fork (PCH)
* Intel Ice Lake (PCH)
* Intel Comet Lake (PCH)
* Intel Elkhart Lake (PCH)
Datasheets: Publicly available at the Intel website
On Intel Patsburg and later chipsets, both the normal host SMBus controller

1
drivers/i2c/busses/Kconfig
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@ -143,6 +143,7 @@ config I2C_I801
Cedar Fork (PCH)
Ice Lake (PCH)
Comet Lake (PCH)
Elkhart Lake (PCH)
This driver can also be built as a module. If so, the module
will be called i2c-i801.

4
drivers/i2c/busses/i2c-i801.c
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@ -72,6 +72,7 @@
* Cedar Fork (PCH) 0x18df 32 hard yes yes yes
* Ice Lake-LP (PCH) 0x34a3 32 hard yes yes yes
* Comet Lake (PCH) 0x02a3 32 hard yes yes yes
* Elkhart Lake (PCH) 0x4b23 32 hard yes yes yes
*
* Features supported by this driver:
* Software PEC no
@ -244,6 +245,7 @@
#define PCI_DEVICE_ID_INTEL_KABYLAKE_PCH_H_SMBUS 0xa2a3
#define PCI_DEVICE_ID_INTEL_CANNONLAKE_H_SMBUS 0xa323
#define PCI_DEVICE_ID_INTEL_COMETLAKE_SMBUS 0x02a3
#define PCI_DEVICE_ID_INTEL_ELKHART_LAKE_SMBUS 0x4b23
struct i801_mux_config {
char *gpio_chip;
@ -1071,6 +1073,7 @@ static const struct pci_device_id i801_ids[] = {
{ 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) },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_COMETLAKE_SMBUS) },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ELKHART_LAKE_SMBUS) },
{ 0, }
};
@ -1683,6 +1686,7 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id)
case PCI_DEVICE_ID_INTEL_KABYLAKE_PCH_H_SMBUS:
case PCI_DEVICE_ID_INTEL_ICELAKE_LP_SMBUS:
case PCI_DEVICE_ID_INTEL_COMETLAKE_SMBUS:
case PCI_DEVICE_ID_INTEL_ELKHART_LAKE_SMBUS:
priv->features |= FEATURE_BLOCK_PROC;
priv->features |= FEATURE_I2C_BLOCK_READ;
priv->features |= FEATURE_IRQ;