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kernel: Build: Split kmod-regmap

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This reduces the needed modifications to the mainline Linux kernel and
also makes the regmap package work with an out of tree kernel which
does not have these modifications.

The regmap-core is only added when it is really build as a module.
The regmap-core is normally bool so it cannot be built as a module in an
unmodified kernel. When it is selected by on other kernel module it will
always be selected as build in and it also does not show up in
$(LINUX_DIR)/modules.builtin as it is not supposed to be a kernel module.
When it is not in $(LINUX_DIR)/modules.builtin the build system expects
it to be built as a .ko file.
Just check if the module is really there and only add it in that case.

This splits the regmap package into multiple packages, one for each bus type.
This way only the bus maps which are really needed have to be added.
This also splits the I2C, SPI and MMIO regmap into separate packages to not
require all these subsystems to build them, on an unmodified upstream kernel
this also causes problems in some situations.

Signed-off-by: Hauke Mehrtens <hauke.mehrtens@intel.com>
This commit is contained in:
Hauke Mehrtens 2019-01-11 18:05:11 +01:00 committed by Hauke Mehrtens
parent 538127cf98
commit fd5c168701
13 changed files with 101 additions and 79 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
package/kernel/linux/modules/can.mk
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@ -99,7 +99,7 @@ $(eval $(call KernelPackage,can-c-can-pci))
define KernelPackage/can-c-can-platform
TITLE:=Platform Bus based BOSCH C_CAN/D_CAN driver
KCONFIG:=CONFIG_CAN_C_CAN_PLATFORM
DEPENDS:=kmod-can-c-can +!LINUX_3_18:kmod-regmap
DEPENDS:=kmod-can-c-can +!LINUX_3_18:kmod-regmap-core
FILES:=$(LINUX_DIR)/drivers/net/can/c_can/c_can_platform.ko
AUTOLOAD:=$(call AutoProbe,c_can_platform)
$(call AddDepends/can)

10
package/kernel/linux/modules/hwmon.mk
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@ -112,7 +112,7 @@ define KernelPackage/hwmon-ina2xx
KCONFIG:=CONFIG_SENSORS_INA2XX
FILES:=$(LINUX_DIR)/drivers/hwmon/ina2xx.ko
AUTOLOAD:=$(call AutoProbe,ina2xx)
$(call AddDepends/hwmon,+kmod-i2c-core +!LINUX_3_18:kmod-regmap)
$(call AddDepends/hwmon,+kmod-i2c-core +!LINUX_3_18:kmod-regmap-i2c)
endef
define KernelPackage/hwmon-ina2xx/description
@ -142,7 +142,7 @@ define KernelPackage/hwmon-lm63
KCONFIG:=CONFIG_SENSORS_LM63
FILES:=$(LINUX_DIR)/drivers/hwmon/lm63.ko
AUTOLOAD:=$(call AutoProbe,lm63)
$(call AddDepends/hwmon,+kmod-i2c-core +kmod-regmap)
$(call AddDepends/hwmon,+kmod-i2c-core +kmod-regmap-i2c)
endef
define KernelPackage/hwmon-lm63/description
@ -157,7 +157,7 @@ define KernelPackage/hwmon-lm75
KCONFIG:=CONFIG_SENSORS_LM75
FILES:=$(LINUX_DIR)/drivers/hwmon/lm75.ko
AUTOLOAD:=$(call AutoProbe,lm75)
$(call AddDepends/hwmon,+kmod-i2c-core +PACKAGE_kmod-thermal:kmod-thermal +kmod-regmap)
$(call AddDepends/hwmon,+kmod-i2c-core +PACKAGE_kmod-thermal:kmod-thermal +kmod-regmap-i2c)
endef
define KernelPackage/hwmon-lm75/description
@ -369,7 +369,7 @@ define KernelPackage/hwmon-tmp102
KCONFIG:=CONFIG_SENSORS_TMP102
FILES:=$(LINUX_DIR)/drivers/hwmon/tmp102.ko
AUTOLOAD:=$(call AutoProbe,tmp102)
$(call AddDepends/hwmon,+kmod-i2c-core +PACKAGE_kmod-thermal:kmod-thermal +kmod-regmap)
$(call AddDepends/hwmon,+kmod-i2c-core +PACKAGE_kmod-thermal:kmod-thermal +kmod-regmap-i2c)
endef
define KernelPackage/hwmon-tmp102/description
@ -384,7 +384,7 @@ define KernelPackage/hwmon-tmp103
KCONFIG:=CONFIG_SENSORS_TMP103
FILES:=$(LINUX_DIR)/drivers/hwmon/tmp103.ko
AUTOLOAD:=$(call AutoProbe,tmp103)
$(call AddDepends/hwmon,+kmod-i2c-core +kmod-regmap)
$(call AddDepends/hwmon,+kmod-i2c-core +kmod-regmap-i2c)
endef
define KernelPackage/hwmon-tmp103/description

6
package/kernel/linux/modules/iio.mk
View File

@ -54,7 +54,7 @@ $(eval $(call KernelPackage,iio-ad799x))
define KernelPackage/iio-hmc5843
SUBMENU:=$(IIO_MENU)
DEPENDS:=+kmod-i2c-core +kmod-iio-core +kmod-regmap
DEPENDS:=+kmod-i2c-core +kmod-iio-core +kmod-regmap-i2c
TITLE:=Honeywell HMC58x3 Magnetometer
KCONFIG:= CONFIG_SENSORS_HMC5843_I2C
FILES:= \
@ -132,7 +132,7 @@ $(eval $(call KernelPackage,iio-dht11))
define KernelPackage/iio-bmp280
SUBMENU:=$(IIO_MENU)
TITLE:=BMP180/BMP280/BME280 pressure/temperatur sensor
DEPENDS:=@!LINUX_3_18 +kmod-iio-core +kmod-regmap
DEPENDS:=@!LINUX_3_18 +kmod-iio-core +kmod-regmap-core
KCONFIG:=CONFIG_BMP280
FILES:=$(LINUX_DIR)/drivers/iio/pressure/bmp280.ko
endef
@ -149,7 +149,7 @@ $(eval $(call KernelPackage,iio-bmp280))
define KernelPackage/iio-bmp280-i2c
SUBMENU:=$(IIO_MENU)
TITLE:=BMP180/BMP280/BME280 pressure/temperatur sensor (I2C)
DEPENDS:=+kmod-iio-bmp280 +kmod-i2c-core
DEPENDS:=+kmod-iio-bmp280 +kmod-i2c-core +kmod-regmap-i2c
KCONFIG:=CONFIG_BMP280_I2C
FILES:=$(LINUX_DIR)/drivers/iio/pressure/bmp280-i2c.ko
AUTOLOAD:=$(call AutoProbe,iio-bmp280-i2c)

87
package/kernel/linux/modules/other.mk
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@ -30,7 +30,7 @@ $(eval $(call KernelPackage,6lowpan))
define KernelPackage/bluetooth
SUBMENU:=$(OTHER_MENU)
TITLE:=Bluetooth support
DEPENDS:=@USB_SUPPORT +kmod-usb-core +kmod-crypto-hash +kmod-crypto-ecb +kmod-lib-crc16 +kmod-hid +!LINUX_3_18:kmod-crypto-cmac +!LINUX_3_18:kmod-regmap +!(LINUX_3_18||LINUX_4_9):kmod-crypto-ecdh
DEPENDS:=@USB_SUPPORT +kmod-usb-core +kmod-crypto-hash +kmod-crypto-ecb +kmod-lib-crc16 +kmod-hid +!LINUX_3_18:kmod-crypto-cmac +!LINUX_3_18:kmod-regmap-core +!(LINUX_3_18||LINUX_4_9):kmod-crypto-ecdh
KCONFIG:= \
CONFIG_BT \
CONFIG_BT_BREDR=y \
@ -172,7 +172,7 @@ define KernelPackage/eeprom-at24
SUBMENU:=$(OTHER_MENU)
TITLE:=EEPROM AT24 support
KCONFIG:=CONFIG_EEPROM_AT24
DEPENDS:=+kmod-i2c-core +kmod-nvmem +LINUX_4_19:kmod-regmap
DEPENDS:=+kmod-i2c-core +kmod-nvmem +LINUX_4_19:kmod-regmap-i2c
FILES:=$(LINUX_DIR)/drivers/misc/eeprom/at24.ko
AUTOLOAD:=$(call AutoProbe,at24)
endef
@ -219,7 +219,7 @@ $(eval $(call KernelPackage,gpio-dev))
define KernelPackage/gpio-mcp23s08
SUBMENU:=$(OTHER_MENU)
TITLE:=Microchip MCP23xxx I/O expander
DEPENDS:=@GPIO_SUPPORT +kmod-i2c-core +!(LINUX_3_18||LINUX_4_9):kmod-regmap
DEPENDS:=@GPIO_SUPPORT +kmod-i2c-core +!(LINUX_3_18||LINUX_4_9):kmod-regmap-i2c
KCONFIG:= \
CONFIG_GPIO_MCP23S08 \
CONFIG_PINCTRL_MCP23S08
@ -476,7 +476,7 @@ define KernelPackage/rtc-ds1307
SUBMENU:=$(OTHER_MENU)
TITLE:=Dallas/Maxim DS1307 (and compatible) RTC support
DEFAULT:=m if ALL_KMODS && RTC_SUPPORT
DEPENDS:=+kmod-i2c-core +!(LINUX_3_18||LINUX_4_9):kmod-regmap +!(LINUX_3_18||LINUX_4_9):kmod-hwmon-core
DEPENDS:=+kmod-i2c-core +!(LINUX_3_18||LINUX_4_9):kmod-regmap-i2c +!(LINUX_3_18||LINUX_4_9):kmod-hwmon-core
KCONFIG:=CONFIG_RTC_DRV_DS1307 \
CONFIG_RTC_CLASS=y
FILES:=$(LINUX_DIR)/drivers/rtc/rtc-ds1307.ko
@ -710,32 +710,71 @@ endef
$(eval $(call KernelPackage,serial-8250-exar))
define KernelPackage/regmap
define KernelPackage/regmap-core
SUBMENU:=$(OTHER_MENU)
TITLE:=Generic register map support
DEPENDS:=+kmod-lib-lzo +kmod-i2c-core
KCONFIG:=CONFIG_REGMAP \
CONFIG_REGMAP_MMIO \
CONFIG_REGMAP_SPI \
CONFIG_REGMAP_I2C \
CONFIG_SPI=y
FILES:= \
$(LINUX_DIR)/drivers/base/regmap/regmap-i2c.ko \
$(LINUX_DIR)/drivers/base/regmap/regmap-mmio.ko \
$(if $(CONFIG_SPI),$(LINUX_DIR)/drivers/base/regmap/regmap-spi.ko)
AUTOLOAD:=$(call AutoLoad,21,regmap-core regmap-i2c regmap-mmio regmap-spi)
ifeq ($(strip $(CONFIG_EXTERNAL_KERNEL_TREE)),"")
ifeq ($(strip $(CONFIG_KERNEL_GIT_CLONE_URI)),"")
FILES += $(LINUX_DIR)/drivers/base/regmap/regmap-core.ko
endif
endif
HIDDEN:=1
KCONFIG:=CONFIG_REGMAP
ifneq ($(wildcard $(LINUX_DIR)/drivers/base/regmap/regmap-core.ko),)
FILES:=$(LINUX_DIR)/drivers/base/regmap/regmap-core.ko
endif
endef
define KernelPackage/regmap/description
define KernelPackage/regmap-core/description
Generic register map support
endef
$(eval $(call KernelPackage,regmap))
$(eval $(call KernelPackage,regmap-core))
define KernelPackage/regmap-spi
SUBMENU:=$(OTHER_MENU)
TITLE:=SPI register map support
DEPENDS:=+kmod-regmap-core
HIDDEN:=1
KCONFIG:=CONFIG_REGMAP_SPI \
CONFIG_SPI=y
FILES:=$(LINUX_DIR)/drivers/base/regmap/regmap-spi.ko
endef
define KernelPackage/regmap-spi/description
SPI register map support
endef
$(eval $(call KernelPackage,regmap-spi))
define KernelPackage/regmap-i2c
SUBMENU:=$(OTHER_MENU)
TITLE:=I2C register map support
DEPENDS:=+kmod-regmap-core +kmod-i2c-core
HIDDEN:=1
KCONFIG:=CONFIG_REGMAP_I2C
FILES:=$(LINUX_DIR)/drivers/base/regmap/regmap-i2c.ko
endef
define KernelPackage/regmap-i2c/description
I2C register map support
endef
$(eval $(call KernelPackage,regmap-i2c))
define KernelPackage/regmap-mmio
SUBMENU:=$(OTHER_MENU)
TITLE:=MMIO register map support
DEPENDS:=+kmod-regmap-core
HIDDEN:=1
KCONFIG:=CONFIG_REGMAP_MMIO
FILES:=$(LINUX_DIR)/drivers/base/regmap/regmap-mmio.ko
endef
define KernelPackage/regmap-mmio/description
MMIO register map support
endef
$(eval $(call KernelPackage,regmap-mmio))
define KernelPackage/ikconfig
SUBMENU:=$(OTHER_MENU)
@ -996,7 +1035,7 @@ $(eval $(call KernelPackage,echo))
define KernelPackage/bmp085
SUBMENU:=$(OTHER_MENU)
TITLE:=BMP085/BMP18x pressure sensor
DEPENDS:= +kmod-regmap @!LINUX_3_18
DEPENDS:= +kmod-regmap-core @!LINUX_3_18
KCONFIG:= CONFIG_BMP085
FILES:= $(LINUX_DIR)/drivers/misc/bmp085.ko
endef

4
package/kernel/linux/modules/sound.mk
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@ -188,7 +188,7 @@ $(eval $(call KernelPackage,sound-via82xx))
define KernelPackage/sound-soc-core
TITLE:=SoC sound support
DEPENDS:=+kmod-regmap +kmod-ac97
DEPENDS:=+kmod-regmap-core +kmod-ac97
KCONFIG:= \
CONFIG_SND_SOC \
CONFIG_SND_SOC_DMAENGINE_PCM=y \
@ -321,7 +321,7 @@ define KernelPackage/sound-hda-core
$(LINUX_DIR)/sound/pci/hda/snd-hda-codec.ko \
$(LINUX_DIR)/sound/pci/hda/snd-hda-codec-generic.ko
AUTOLOAD:=$(call AutoProbe,snd-hda-core@ge4.1 snd-hda-codec snd-hda-codec-generic)
$(call AddDepends/sound,+kmod-regmap)
$(call AddDepends/sound,+kmod-regmap-core)
endef
define KernelPackage/sound-hda-core/description

4
package/kernel/linux/modules/wpan.mk
View File

@ -72,7 +72,7 @@ $(eval $(call KernelPackage,fakelb))
define KernelPackage/at86rf230
SUBMENU:=$(WPAN_MENU)
TITLE:=AT86RF230 transceiver driver
DEPENDS:=+kmod-mac802154 +kmod-regmap
DEPENDS:=+kmod-mac802154 +kmod-regmap-spi
KCONFIG:=CONFIG_IEEE802154_AT86RF230 \
CONFIG_IEEE802154_AT86RF230_DEBUGFS=n \
CONFIG_SPI=y \
@ -85,7 +85,7 @@ $(eval $(call KernelPackage,at86rf230))
define KernelPackage/mrf24j40
SUBMENU:=$(WPAN_MENU)
TITLE:=MRF24J40 transceiver driver
DEPENDS:=+kmod-mac802154 +kmod-regmap
DEPENDS:=+kmod-mac802154 +kmod-regmap-spi
KCONFIG:=CONFIG_IEEE802154_MRF24J40 \
CONFIG_SPI=y \
CONFIG_SPI_MASTER=y

2
target/linux/at91/modules.mk
View File

@ -53,7 +53,7 @@ $(eval $(call KernelPackage,at91-adc))
define KernelPackage/at91-udc
SUBMENU:=$(USB_MENU)
TITLE:=USB Device Controller on atmel SoC
DEPENDS:=@TARGET_at91 +kmod-usb-gadget +kmod-regmap
DEPENDS:=@TARGET_at91 +kmod-usb-gadget +kmod-regmap-core
KCONFIG:=CONFIG_USB_AT91
ifneq ($(wildcard $(LINUX_DIR)/drivers/usb/gadget/udc/at91_udc.ko),)
FILES:=$(LINUX_DIR)/drivers/usb/gadget/udc/at91_udc.ko

4
target/linux/brcm2708/modules.mk
View File

@ -75,7 +75,7 @@ define KernelPackage/sound-soc-bcm2835-i2s
FILES:= \
$(LINUX_DIR)/sound/soc/bcm/snd-soc-bcm2835-i2s.ko
AUTOLOAD:=$(call AutoLoad,68,snd-soc-bcm2835-i2s)
DEPENDS:=@TARGET_brcm2708 +kmod-regmap +kmod-sound-soc-core
DEPENDS:=@TARGET_brcm2708 +kmod-regmap-mmio +kmod-sound-soc-core
$(call AddDepends/sound)
endef
@ -248,7 +248,7 @@ define KernelPackage/sound-soc-allo-katana-codec
DEPENDS:= \
@LINUX_4_14 \
+kmod-i2c-bcm2708 \
+kmod-regmap \
+kmod-regmap-core \
kmod-sound-soc-bcm2835-i2s
$(call AddDepends/sound)
endef

14
target/linux/generic/hack-4.14/259-regmap_dynamic.patch
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@ -21,22 +21,19 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
- default y if (REGMAP_I2C || REGMAP_SPI || REGMAP_SPMI || REGMAP_W1 || REGMAP_AC97 || REGMAP_MMIO || REGMAP_IRQ)
select IRQ_DOMAIN if REGMAP_IRQ
- bool
+ tristate "Regmap"
+ tristate
config REGCACHE_COMPRESSED
select LZO_COMPRESS
@@ -17,23 +16,30 @@ config REGMAP_AC97
tristate
@@ -18,22 +17,29 @@ config REGMAP_AC97
config REGMAP_I2C
- tristate
+ tristate "Regmap I2C"
tristate
+ select REGMAP
depends on I2C
config REGMAP_SPI
- tristate
+ tristate "Regmap SPI"
tristate
+ select REGMAP
+ depends on SPI_MASTER
depends on SPI
@ -52,8 +49,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
depends on W1
config REGMAP_MMIO
- tristate
+ tristate "Regmap MMIO"
tristate
+ select REGMAP
config REGMAP_IRQ

17
target/linux/generic/hack-4.19/259-regmap_dynamic.patch
View File

@ -21,26 +21,22 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
- default y if (REGMAP_I2C || REGMAP_SPI || REGMAP_SPMI || REGMAP_W1 || REGMAP_AC97 || REGMAP_MMIO || REGMAP_IRQ)
select IRQ_DOMAIN if REGMAP_IRQ
- bool
+ tristate "Regmap"
+ tristate
config REGCACHE_COMPRESSED
select LZO_COMPRESS
@@ -17,7 +16,8 @@ config REGMAP_AC97
tristate
@@ -18,6 +17,7 @@ config REGMAP_AC97
config REGMAP_I2C
- tristate
+ tristate "Regmap I2C"
tristate
+ select REGMAP
depends on I2C
config REGMAP_SLIMBUS
@@ -25,21 +25,27 @@ config REGMAP_SLIMBUS
depends on SLIMBUS
@@ -26,20 +26,26 @@ config REGMAP_SLIMBUS
config REGMAP_SPI
- tristate
+ tristate "Regmap SPI"
tristate
+ select REGMAP
+ depends on SPI_MASTER
depends on SPI
@ -56,8 +52,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
depends on W1
config REGMAP_MMIO
- tristate
+ tristate "Regmap MMIO"
tristate
+ select REGMAP
config REGMAP_IRQ

14
target/linux/generic/hack-4.9/259-regmap_dynamic.patch
View File

@ -21,22 +21,19 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
- default y if (REGMAP_I2C || REGMAP_SPI || REGMAP_SPMI || REGMAP_AC97 || REGMAP_MMIO || REGMAP_IRQ)
select IRQ_DOMAIN if REGMAP_IRQ
- bool
+ tristate "Regmap"
+ tristate
config REGCACHE_COMPRESSED
select LZO_COMPRESS
@@ -16,19 +15,25 @@ config REGMAP_AC97
tristate
@@ -17,18 +16,24 @@ config REGMAP_AC97
config REGMAP_I2C
- tristate
+ tristate "Regmap I2C"
tristate
+ select REGMAP
depends on I2C
config REGMAP_SPI
- tristate
+ tristate "Regmap SPI"
tristate
+ select REGMAP
+ depends on SPI_MASTER
depends on SPI
@ -47,8 +44,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
depends on SPMI
config REGMAP_MMIO
- tristate
+ tristate "Regmap MMIO"
tristate
+ select REGMAP
config REGMAP_IRQ

14
target/linux/generic/pending-3.18/259-regmap_dynamic.patch
View File

@ -7,22 +7,19 @@
- default y if (REGMAP_I2C || REGMAP_SPI || REGMAP_SPMI || REGMAP_MMIO || REGMAP_IRQ)
select IRQ_DOMAIN if REGMAP_IRQ
- bool
+ tristate "Regmap"
+ tristate
config REGCACHE_COMPRESSED
select LZO_COMPRESS
@@ -13,19 +12,25 @@ config REGCACHE_COMPRESSED
bool
@@ -14,18 +13,24 @@ config REGCACHE_COMPRESSED
config REGMAP_I2C
- tristate
+ tristate "Regmap I2C"
tristate
+ select REGMAP
depends on I2C
config REGMAP_SPI
- tristate
+ tristate "Regmap SPI"
tristate
+ select REGMAP
+ depends on SPI_MASTER
depends on SPI
@ -33,8 +30,7 @@
depends on SPMI
config REGMAP_MMIO
- tristate
+ tristate "Regmap MMIO"
tristate
+ select REGMAP
config REGMAP_IRQ

2
target/linux/ramips/modules.mk
View File

@ -116,7 +116,7 @@ $(eval $(call KernelPackage,hsdma-mtk))
define KernelPackage/sound-mt7620
TITLE:=MT7620 PCM/I2S Alsa Driver
DEPENDS:=@TARGET_ramips +kmod-sound-soc-core +kmod-regmap +kmod-dma-ralink @!TARGET_ramips_rt288x
DEPENDS:=@TARGET_ramips +kmod-sound-soc-core +kmod-regmap-mmio +kmod-dma-ralink @!TARGET_ramips_rt288x
KCONFIG:= \
CONFIG_SND_RALINK_SOC_I2S \
CONFIG_SND_SIMPLE_CARD \