Merge: Add i2c-i801 support for Intel Panther Lake

MR: https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-9/-/merge_requests/6620

JIRA: https://issues.redhat.com/browse/RHEL-47426

Signed-off-by: David Arcari <darcari@redhat.com>

Approved-by: Tony Camuso <tcamuso@redhat.com>
Approved-by: Mark Langsdorf <mlangsdo@redhat.com>
Approved-by: Steve Best <sbest@redhat.com>
Approved-by: CKI KWF Bot <cki-ci-bot+kwf-gitlab-com@redhat.com>

Merged-by: Augusto Caringi <acaringi@redhat.com>

Author: caringi

Documentation/i2c/busses/i2c-i801.rst

@@ -49,6 +49,7 @@ Supported adapters:
   * Intel Meteor Lake (SOC and PCH)
   * Intel Birch Stream (SOC)
   * Intel Arrow Lake (SOC)
+  * Intel Panther Lake (SOC)
 
    Datasheets: Publicly available at the Intel website
 

drivers/i2c/busses/Kconfig

@@ -160,10 +160,19 @@ config I2C_I801
 	    Meteor Lake (SOC and PCH)
 	    Birch Stream (SOC)
 	    Arrow Lake (SOC)
+	    Panther Lake (SOC)
 
 	  This driver can also be built as a module.  If so, the module
 	  will be called i2c-i801.
 
+config I2C_I801_MUX
+	def_bool I2C_I801
+	depends on DMI && I2C_MUX_GPIO
+	depends on !(I2C_I801=y && I2C_MUX=m)
+	help
+	  Optional support for multiplexed SMBUS on certain systems with
+	  more than 8 memory slots.
+
 config I2C_ISCH
 	tristate "Intel SCH SMBus 1.0"
 	depends on PCI