From 0bff2a86103e7bec979df9b9ff66c823a8d82d0a Mon Sep 17 00:00:00 2001
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Thu, 28 Jun 2018 16:08:24 +0300
Subject: [PATCH] i2c: i801: Add support for Intel Ice Lake
Git-commit: 0bff2a86103e7bec979df9b9ff66c823a8d82d0a
Patch-mainline: v4.19-rc1
References: bsc#1051510

Intel Ice Lake has the same SMBus host controller than Intel Cannon
Lake. Add the PCI ID to the drivers list of supported devices.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
[jarkko.nikula@linux.intel.com: Add entries to Documentation and Kconfig]
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>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 Documentation/i2c/busses/i2c-i801 | 1 +
 drivers/i2c/busses/Kconfig        | 1 +
 drivers/i2c/busses/i2c-i801.c     | 4 ++++
 3 files changed, 6 insertions(+)

diff --git a/Documentation/i2c/busses/i2c-i801 b/Documentation/i2c/busses/i2c-i801
index ca396748a10d..d1ee484a787d 100644
--- a/Documentation/i2c/busses/i2c-i801
+++ b/Documentation/i2c/busses/i2c-i801
@@ -35,6 +35,7 @@ Supported adapters:
   * Intel Gemini Lake (SOC)
   * Intel Cannon Lake (PCH)
   * Intel Cedar Fork (PCH)
+  * Intel Ice Lake (PCH)
    Datasheets: Publicly available at the Intel website
 
 On Intel Patsburg and later chipsets, both the normal host SMBus controller
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index aa19e3e053b1..e7a4d288c8b7 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -130,6 +130,7 @@ config I2C_I801
 	    Gemini Lake (SOC)
 	    Cannon Lake (PCH)
 	    Cedar Fork (PCH)
+	    Ice Lake (PCH)
 
 	  This driver can also be built as a module.  If so, the module
 	  will be called i2c-i801.
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index aa726607645e..941c223f6491 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -70,6 +70,7 @@
  * Cannon Lake-H (PCH)		0xa323	32	hard	yes	yes	yes
  * Cannon Lake-LP (PCH)		0x9da3	32	hard	yes	yes	yes
  * Cedar Fork (PCH)		0x18df	32	hard	yes	yes	yes
+ * Ice Lake-LP (PCH)		0x34a3	32	hard	yes	yes	yes
  *
  * Features supported by this driver:
  * Software PEC				no
@@ -220,6 +221,7 @@
 #define PCI_DEVICE_ID_INTEL_DH89XXCC_SMBUS		0x2330
 #define PCI_DEVICE_ID_INTEL_COLETOCREEK_SMBUS		0x23b0
 #define PCI_DEVICE_ID_INTEL_GEMINILAKE_SMBUS		0x31d4
+#define PCI_DEVICE_ID_INTEL_ICELAKE_LP_SMBUS		0x34a3
 #define PCI_DEVICE_ID_INTEL_5_3400_SERIES_SMBUS		0x3b30
 #define PCI_DEVICE_ID_INTEL_BROXTON_SMBUS		0x5ad4
 #define PCI_DEVICE_ID_INTEL_LYNXPOINT_SMBUS		0x8c22
@@ -1034,6 +1036,7 @@ static const struct pci_device_id i801_ids[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_KABYLAKE_PCH_H_SMBUS) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CANNONLAKE_H_SMBUS) },
 	{ 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) },
 	{ 0, }
 };
 
@@ -1518,6 +1521,7 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	case PCI_DEVICE_ID_INTEL_CDF_SMBUS:
 	case PCI_DEVICE_ID_INTEL_DNV_SMBUS:
 	case PCI_DEVICE_ID_INTEL_KABYLAKE_PCH_H_SMBUS:
+	case PCI_DEVICE_ID_INTEL_ICELAKE_LP_SMBUS:
 		priv->features |= FEATURE_I2C_BLOCK_READ;
 		priv->features |= FEATURE_IRQ;
 		priv->features |= FEATURE_SMBUS_PEC;
-- 
2.18.0