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authorFlorian Fainelli <florian@openwrt.org>2011-09-30 12:55:26 +0000
committerFlorian Fainelli <florian@openwrt.org>2011-09-30 12:55:26 +0000
commitd53022a42418ff04bbe6040c9808d14378de2660 (patch)
tree9b0d3c34c55295d158e11faf154cf4c0cbbf2980 /package/kernel/modules
parentddf842d573811bda5b0cf7adde8da644287d9f21 (diff)
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add support for more i2c muxes
This patch should bring support for several kernel modules related to I2C to openwrt, which are existing for several years now. Namely there is the i2c-tiny-usb bus driver, to hook up an I2C bus on any device with usb support (prevent voiding warranty when opening and soldering). Second, there is support for the i2c-mux driver and pca954x as a I2C switch driver. Finally there is support for common I2C gpio expander driver modules pca953x and pcf857x. They work without providing platform data recently (can be instantiated at runtime). Signed-off-by: Hartmut Knaack <knaack.h@gmx.de> SVN-Revision: 28334
Diffstat (limited to 'package/kernel/modules')
-rw-r--r--package/kernel/modules/i2c.mk92
1 files changed, 92 insertions, 0 deletions
diff --git a/package/kernel/modules/i2c.mk b/package/kernel/modules/i2c.mk
index a88bfa9..f6b1cdf 100644
--- a/package/kernel/modules/i2c.mk
+++ b/package/kernel/modules/i2c.mk
@@ -213,4 +213,96 @@ define KernelPackage/octeon-i2c/description
Kernel module to use the I2C master driver on Cavium Octeon
endef
+
+I2C_TINY_USB_MODULES:= \
+ CONFIG_I2C_TINY_USB:drivers/i2c/busses/i2c-tiny-usb
+
+define KernelPackage/i2c-tiny-usb
+ $(call i2c_defaults,$(I2C_TINY_USB_MODULES),59)
+ TITLE:=I2C Tiny USB adaptor
+ DEPENDS:=@USB_SUPPORT kmod-i2c-core
+endef
+
+define KernelPackage/i2c-tiny-usb/description
+ Kernel module for the I2C Tiny USB adaptor developed
+ by Till Harbaum (http://www.harbaum.org/till/i2c_tiny_usb).
+endef
+
+$(eval $(call KernelPackage,i2c-tiny-usb))
+
+I2C_MUX_MODULES:= \
+ CONFIG_I2C_MUX:drivers/i2c/i2c-mux
+
+define KernelPackage/i2c-mux
+ $(call i2c_defaults,$(I2C_MUX_MODULES),51)
+ TITLE:=I2C bus multiplexing support
+ DEPENDS:=kmod-i2c-core
+endef
+
+define KernelPackage/i2c-mux/description
+ Kernel modules for I2C bus multiplexing support.
+endef
+
+$(eval $(call KernelPackage,i2c-mux))
+
+I2C_MUX_PCA954x_MODULES:= \
+ CONFIG_I2C_MUX_PCA954x:drivers/i2c/muxes/pca954x
+
+define KernelPackage/i2c-mux-pca954x
+ $(call i2c_defaults,$(I2C_MUX_PCA954x_MODULES),51)
+ TITLE:=Philips PCA954x I2C mux/switches
+ DEPENDS:=kmod-i2c-mux
+endef
+
+define KernelPackage/i2c-mux-pca954x/description
+ Kernel modules for PCA954x I2C bus mux/switching devices.
+endef
+
+$(eval $(call KernelPackage,i2c-mux-pca954x))
+## Support for pca954x seems to be in kernel since 2.6.36
+
+I2C_MUX_PCA9541_MODULES:= \
+ CONFIG_I2C_MUX_PCA9541:drivers/i2c/muxes/pca9541
+
+define KernelPackage/i2c-mux-pca9541
+ $(call i2c_defaults,$(I2C_MUX_PCA9541_MODULES),51)
+ TITLE:=Philips PCA9541 I2C mux/switches
+ DEPENDS:=kmod-i2c-mux
+endef
+
+define KernelPackage/i2c-mux-pca9541/description
+ Kernel modules for PCA9541 I2C bus mux/switching devices.
+endef
+
+$(eval $(call KernelPackage,i2c-mux-pca9541))
+
+GPIO_PCA953X_MODULES:= \
+ CONFIG_GPIO_PCA953X:drivers/gpio/pca953x
+
+define KernelPackage/pca953x
+ $(call i2c_defaults,$(GPIO_PCA953X_MODULES),51)
+ TITLE:=Philips PCA953x I2C GPIO extenders
+ DEPENDS:=kmod-i2c-core
+endef
+
+define KernelPackage/pca953x/description
+ Kernel modules for PCA953x I2C GPIO extenders.
+endef
+
+$(eval $(call KernelPackage,pca953x))
+
+GPIO_PCF857X_MODULES:= \
+ CONFIG_GPIO_PCF857X:drivers/gpio/pcf857x
+
+define KernelPackage/pcf857x
+ $(call i2c_defaults,$(GPIO_PCF857X_MODULES),51)
+ TITLE:=Philips PCF857x I2C GPIO extenders
+ DEPENDS:=kmod-i2c-core
+endef
+
+define KernelPackage/pcf857x/description
+ Kernel modules for PCF857x I2C GPIO extenders.
+endef
+
+$(eval $(call KernelPackage,pcf857x))
$(eval $(call KernelPackage,octeon-i2c))