ramips: Add I2C driver to the default kernel config

I made a commit that added the RTC driver to the kernel config with
the intent that it would fix hctosys. Unfortunately while the RTC
driver is in there, it's connected through I2C, the driver for which
comes in module form and is thus loaded late. After this commit, it
works fine.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

target/linux/ramips/image/mt7621.mk

@@ -30,7 +30,7 @@ define Device/11acnas
   DTS := 11ACNAS
   IMAGE_SIZE := $(ralink_default_fw_size_16M)
   DEVICE_TITLE := WeVO 11AC NAS Router
-  DEVICE_PACKAGES := kmod-usb3 kmod-usb-ledtrig-usbport kmod-i2c-mt7621 kmod-mt76
+  DEVICE_PACKAGES := kmod-usb3 kmod-usb-ledtrig-usbport kmod-mt76
 endef
 TARGET_DEVICES += 11acnas
 
@@ -83,7 +83,7 @@ define Device/newifi-d1
   DTS := Newifi-D1
   IMAGE_SIZE := $(ralink_default_fw_size_32M)
   DEVICE_TITLE := Newifi D1
-  DEVICE_PACKAGES := kmod-usb3 kmod-usb-ledtrig-usbport kmod-i2c-mt7621
+  DEVICE_PACKAGES := kmod-usb3 kmod-usb-ledtrig-usbport
 endef
 TARGET_DEVICES += newifi-d1
 
@@ -91,8 +91,7 @@ define Device/pbr-m1
   DTS := PBR-M1
   IMAGE_SIZE := $(ralink_default_fw_size_16M)
   DEVICE_TITLE := PBR-M1
-  DEVICE_PACKAGES := kmod-usb3 kmod-usb-ledtrig-usbport kmod-ata-core kmod-ata-ahci \
-	kmod-i2c-mt7621
+  DEVICE_PACKAGES := kmod-usb3 kmod-usb-ledtrig-usbport kmod-ata-core kmod-ata-ahci
 endef
 TARGET_DEVICES += pbr-m1
 
@@ -157,7 +156,7 @@ define Device/w2914nsv2
   DTS := W2914NSV2
   IMAGE_SIZE := $(ralink_default_fw_size_16M)
   DEVICE_TITLE := WeVO W2914NS v2
-  DEVICE_PACKAGES := kmod-usb3 kmod-usb-ledtrig-usbport kmod-i2c-mt7621 kmod-mt76
+  DEVICE_PACKAGES := kmod-usb3 kmod-usb-ledtrig-usbport kmod-mt76
 endef
 TARGET_DEVICES += w2914nsv2
 
@@ -179,8 +178,7 @@ define Device/witi
   DTS := WITI
   IMAGE_SIZE := $(ralink_default_fw_size_16M)
   DEVICE_TITLE := MQmaker WiTi
-  DEVICE_PACKAGES := kmod-usb3 kmod-usb-ledtrig-usbport kmod-ata-core kmod-ata-ahci \
-	kmod-i2c-mt7621
+  DEVICE_PACKAGES := kmod-usb3 kmod-usb-ledtrig-usbport kmod-ata-core kmod-ata-ahci
 endef
 TARGET_DEVICES += witi
 

target/linux/ramips/modules.mk

@@ -58,22 +58,6 @@ endef
 $(eval $(call KernelPackage,i2c-ralink))
 
 
-I2C_MT7621_MODULES:= \
-  CONFIG_I2C_MT7621:drivers/i2c/busses/i2c-mt7621
-
-define KernelPackage/i2c-mt7621
-  $(call i2c_defaults,$(I2C_MT7621_MODULES),59)
-  TITLE:=MT7621 I2C Controller
-  DEPENDS:=kmod-i2c-core \
-	@(TARGET_ramips_mt7621||TARGET_ramips_mt7628||TARGET_ramips_mt7688)
-endef
-
-define KernelPackage/i2c-mt7621/description
- Kernel modules for enable mt7621 i2c controller.
-endef
-
-$(eval $(call KernelPackage,i2c-mt7621))
-
 define KernelPackage/dma-ralink
   SUBMENU:=Other modules
   TITLE:=Ralink GDMA Engine

target/linux/ramips/mt7621/config-4.4

@@ -115,6 +115,8 @@ CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
 CONFIG_HIGHMEM=y
 CONFIG_HW_HAS_PCI=y
 CONFIG_HZ_PERIODIC=y
+CONFIG_I2C=y
+CONFIG_I2C_MT7621=y
 # CONFIG_IMG_MDC_DMA is not set
 CONFIG_INITRAMFS_SOURCE=""
 CONFIG_IRQCHIP=y