[source] kernel: add i2c-smbus module package

[LEDE Commits]

hauke pushed a commit to source.git, branch master:
https://git.lede-project.org/60c4f9ce564a2dba3587cfe75b4c8d44dd87ee3f

commit 60c4f9ce564a2dba3587cfe75b4c8d44dd87ee3f
Author: Philip Prindeville <philipp at redfish-solutions.com>
AuthorDate: Mon Oct 16 22:11:24 2017 -0600

    kernel: add i2c-smbus module package
    
    Intel motherboards (as well as the Cavium ThunderX SoC) use a
    superset of the I2C protocol called SMBus.
    
    Signed-off-by: Philip Prindeville <philipp at redfish-solutions.com>
---
 package/kernel/linux/modules/i2c.mk | 21 ++++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

diff --git a/package/kernel/linux/modules/i2c.mk b/package/kernel/linux/modules/i2c.mk
index 5141766..14c5b64 100644
--- a/package/kernel/linux/modules/i2c.mk
+++ b/package/kernel/linux/modules/i2c.mk
@@ -143,13 +143,12 @@ $(eval $(call KernelPackage,i2c-piix4))
 
 
 I2C_I801_MODULES:= \
-  CONFIG_I2C_I801:drivers/i2c/busses/i2c-i801 \
-  CONFIG_I2C_SMBUS:drivers/i2c/i2c-smbus
+  CONFIG_I2C_I801:drivers/i2c/busses/i2c-i801
 
 define KernelPackage/i2c-i801
   $(call i2c_defaults,$(I2C_I801_MODULES),59)
   TITLE:=Intel I801 and compatible I2C interfaces
-  DEPENDS:=@PCI_SUPPORT @TARGET_x86 kmod-i2c-core
+  DEPENDS:=@PCI_SUPPORT @TARGET_x86 kmod-i2c-core +kmod-i2c-smbus
 endef
 
 define KernelPackage/i2c-i801/description
@@ -168,6 +167,22 @@ endef
 $(eval $(call KernelPackage,i2c-i801))
 
 
+I2C_SMBUS_MODULES:= \
+  CONFIG_I2C_SMBUS:drivers/i2c/i2c-smbus
+
+define KernelPackage/i2c-smbus
+  $(call i2c_defaults,$(I2C_SMBUS_MODULES),58)
+  TITLE:=SMBus-specific protocols helper
+  DEPENDS:=kmod-i2c-core
+endef
+
+define KernelPackage/i2c-smbus/description
+ Support for the SMBus extensions to the I2C specification.
+endef
+
+$(eval $(call KernelPackage,i2c-smbus))
+
+
 I2C_MUX_MODULES:= \
   CONFIG_I2C_MUX:drivers/i2c/i2c-mux