i2c: Add driver for Cadence I2C controller

sorenb-xlnx · Wolfram Sang · commit df8eb5691c48 · 2014-04-06T17:47:19.000+02:00
Add a driver for the Cadence I2C controller. This controller is for
example found in Xilinx Zynq.

Signed-off-by: Soren Brinkmann &lt;soren.brinkmann@xilinx.com&gt;
Tested-by: Michal Simek &lt;michal.simek@xilinx.com&gt;
Reviewed-by: Harini Katakam &lt;harinik@xilinx.com&gt;
Signed-off-by: Wolfram Sang &lt;wsa@the-dreams.de&gt;
diff --git a/MAINTAINERS b/MAINTAINERS
@@ -1402,6 +1402,7 @@ F:	drivers/cpuidle/cpuidle-zynq.c
 N:	zynq
 N:	xilinx
 F:	drivers/clocksource/cadence_ttc_timer.c
+F:	drivers/i2c/busses/i2c-cadence.c
 F:	drivers/mmc/host/sdhci-of-arasan.c
 
 ARM SMMU DRIVER
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
@@ -376,6 +376,13 @@ config I2C_BLACKFIN_TWI_CLK_KHZ
 	help
 	  The unit of the TWI clock is kHz.
 
+config I2C_CADENCE
+	tristate "Cadence I2C Controller"
+	depends on COMMON_CLK
+	help
+	  Say yes here to select Cadence I2C Host Controller. This controller is
+	  e.g. used by Xilinx Zynq.
+
 config I2C_CBUS_GPIO
 	tristate "CBUS I2C driver"
 	depends on GPIOLIB
diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile
@@ -33,6 +33,7 @@ obj-$(CONFIG_I2C_AT91)		+= i2c-at91.o
 obj-$(CONFIG_I2C_AU1550)	+= i2c-au1550.o
 obj-$(CONFIG_I2C_BCM2835)	+= i2c-bcm2835.o
 obj-$(CONFIG_I2C_BLACKFIN_TWI)	+= i2c-bfin-twi.o
+obj-$(CONFIG_I2C_CADENCE)	+= i2c-cadence.o
 obj-$(CONFIG_I2C_CBUS_GPIO)	+= i2c-cbus-gpio.o
 obj-$(CONFIG_I2C_CPM)		+= i2c-cpm.o
 obj-$(CONFIG_I2C_DAVINCI)	+= i2c-davinci.o
diff --git a/drivers/i2c/busses/i2c-cadence.c b/drivers/i2c/busses/i2c-cadence.c
