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Commit 9be1485a authored by Jarkko Nikula's avatar Jarkko Nikula Committed by Wolfram Sang
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i2c: i801: Add support for Intel Elkhart Lake 



Add PCI ID for Intel Elkhart Lake PCH.

Signed-off-by: default avatarJarkko Nikula <jarkko.nikula@linux.intel.com>
Reviewed-by: default avatarJean Delvare <jdelvare@suse.de>
Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
parent 315cd67c

Documentation/i2c/busses/i2c-i801

+1 −0
Original line number Diff line number Diff line
@@ -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

drivers/i2c/busses/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -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.

drivers/i2c/busses/i2c-i801.c

+4 −0
Original line number Diff line number Diff line
@@ -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;