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authorAxel Lin <axel.lin@gmail.com>2012-09-10 10:14:02 +0200
committerJean Delvare <khali@endymion.delvare>2012-09-10 10:14:02 +0200
commite68bb91baa0bb9817567bd45d560919e8e26373b (patch)
tree0e8b194adc8b72851d2b1ed738d62e95b2b60fe1 /drivers/i2c
parent4a8f1ddde942e232387e6129ce4f4c412e43802f (diff)
downloadlinux-linaro-stable-e68bb91baa0bb9817567bd45d560919e8e26373b.tar.gz
i2c-designware: Fix build error if CONFIG_I2C_DESIGNWARE_PLATFORM=y && CONFIG_I2C_DESIGNWARE_PCI=y
This patch adds config I2C_DESIGNWARE_CORE in Kconfig, and let I2C_DESIGNWARE_PLATFORM and I2C_DESIGNWARE_PCI select I2C_DESIGNWARE_CORE. Because both I2C_DESIGNWARE_PLATFORM and I2C_DESIGNWARE_PCI can be built as built-in or module, we also need to export the functions in i2c-designware-core. This fixes below build error when CONFIG_I2C_DESIGNWARE_PLATFORM=y && CONFIG_I2C_DESIGNWARE_PCI=y: LD drivers/i2c/busses/built-in.o drivers/i2c/busses/i2c-designware-pci.o: In function `i2c_dw_clear_int': i2c-designware-core.c:(.text+0xa10): multiple definition of `i2c_dw_clear_int' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x928): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `i2c_dw_init': i2c-designware-core.c:(.text+0x178): multiple definition of `i2c_dw_init' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x90): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `dw_readl': i2c-designware-core.c:(.text+0xe8): multiple definition of `dw_readl' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x0): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `i2c_dw_isr': i2c-designware-core.c:(.text+0x724): multiple definition of `i2c_dw_isr' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x63c): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `i2c_dw_xfer': i2c-designware-core.c:(.text+0x4b0): multiple definition of `i2c_dw_xfer' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x3c8): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `i2c_dw_is_enabled': i2c-designware-core.c:(.text+0x9d4): multiple definition of `i2c_dw_is_enabled' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x8ec): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `dw_writel': i2c-designware-core.c:(.text+0x124): multiple definition of `dw_writel' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x3c): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `i2c_dw_xfer_msg': i2c-designware-core.c:(.text+0x2e8): multiple definition of `i2c_dw_xfer_msg' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x200): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `i2c_dw_enable': i2c-designware-core.c:(.text+0x9c8): multiple definition of `i2c_dw_enable' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x8e0): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `i2c_dw_read_comp_param': i2c-designware-core.c:(.text+0xa24): multiple definition of `i2c_dw_read_comp_param' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x93c): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `i2c_dw_disable': i2c-designware-core.c:(.text+0x9dc): multiple definition of `i2c_dw_disable' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x8f4): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `i2c_dw_func': i2c-designware-core.c:(.text+0x710): multiple definition of `i2c_dw_func' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x628): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `i2c_dw_disable_int': i2c-designware-core.c:(.text+0xa18): multiple definition of `i2c_dw_disable_int' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x930): first defined here make[3]: *** [drivers/i2c/busses/built-in.o] Error 1 make[2]: *** [drivers/i2c/busses] Error 2 make[1]: *** [drivers/i2c] Error 2 make: *** [drivers] Error 2 Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Tested-by: Jiri Slaby <jslaby@suse.cz> Cc: stable@vger.kernel.org [3.2+]
Diffstat (limited to 'drivers/i2c')
-rw-r--r--drivers/i2c/busses/Kconfig5
-rw-r--r--drivers/i2c/busses/Makefile5
-rw-r--r--drivers/i2c/busses/i2c-designware-core.c11
3 files changed, 19 insertions, 2 deletions
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index af8bc83fd857..970a1612e795 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -355,9 +355,13 @@ config I2C_DAVINCI
devices such as DaVinci NIC.
For details please see http://www.ti.com/davinci
+config I2C_DESIGNWARE_CORE
+ tristate
+
config I2C_DESIGNWARE_PLATFORM
tristate "Synopsys DesignWare Platform"
depends on HAVE_CLK
+ select I2C_DESIGNWARE_CORE
help
If you say yes to this option, support will be included for the
Synopsys DesignWare I2C adapter. Only master mode is supported.
@@ -368,6 +372,7 @@ config I2C_DESIGNWARE_PLATFORM
config I2C_DESIGNWARE_PCI
tristate "Synopsys DesignWare PCI"
depends on PCI
+ select I2C_DESIGNWARE_CORE
help
If you say yes to this option, support will be included for the
Synopsys DesignWare I2C adapter. Only master mode is supported.
diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile
index ce3c2be7fb40..37c4182cc98b 100644
--- a/drivers/i2c/busses/Makefile
+++ b/drivers/i2c/busses/Makefile
@@ -33,10 +33,11 @@ obj-$(CONFIG_I2C_AU1550) += i2c-au1550.o
obj-$(CONFIG_I2C_BLACKFIN_TWI) += i2c-bfin-twi.o
obj-$(CONFIG_I2C_CPM) += i2c-cpm.o
obj-$(CONFIG_I2C_DAVINCI) += i2c-davinci.o
+obj-$(CONFIG_I2C_DESIGNWARE_CORE) += i2c-designware-core.o
obj-$(CONFIG_I2C_DESIGNWARE_PLATFORM) += i2c-designware-platform.o
-i2c-designware-platform-objs := i2c-designware-platdrv.o i2c-designware-core.o
+i2c-designware-platform-objs := i2c-designware-platdrv.o
obj-$(CONFIG_I2C_DESIGNWARE_PCI) += i2c-designware-pci.o
-i2c-designware-pci-objs := i2c-designware-pcidrv.o i2c-designware-core.o
+i2c-designware-pci-objs := i2c-designware-pcidrv.o
obj-$(CONFIG_I2C_EG20T) += i2c-eg20t.o
obj-$(CONFIG_I2C_GPIO) += i2c-gpio.o
obj-$(CONFIG_I2C_HIGHLANDER) += i2c-highlander.o
diff --git a/drivers/i2c/busses/i2c-designware-core.c b/drivers/i2c/busses/i2c-designware-core.c
index 1e48bec80edf..7b8ebbefb581 100644
--- a/drivers/i2c/busses/i2c-designware-core.c
+++ b/drivers/i2c/busses/i2c-designware-core.c
@@ -25,6 +25,7 @@
* ----------------------------------------------------------------------------
*
*/
+#include <linux/export.h>
#include <linux/clk.h>
#include <linux/errno.h>
#include <linux/err.h>
@@ -316,6 +317,7 @@ int i2c_dw_init(struct dw_i2c_dev *dev)
dw_writel(dev, dev->master_cfg , DW_IC_CON);
return 0;
}
+EXPORT_SYMBOL_GPL(i2c_dw_init);
/*
* Waiting for bus not busy
@@ -568,12 +570,14 @@ done:
return ret;
}
+EXPORT_SYMBOL_GPL(i2c_dw_xfer);
u32 i2c_dw_func(struct i2c_adapter *adap)
{
struct dw_i2c_dev *dev = i2c_get_adapdata(adap);
return dev->functionality;
}
+EXPORT_SYMBOL_GPL(i2c_dw_func);
static u32 i2c_dw_read_clear_intrbits(struct dw_i2c_dev *dev)
{
@@ -678,17 +682,20 @@ tx_aborted:
return IRQ_HANDLED;
}
+EXPORT_SYMBOL_GPL(i2c_dw_isr);
void i2c_dw_enable(struct dw_i2c_dev *dev)
{
/* Enable the adapter */
dw_writel(dev, 1, DW_IC_ENABLE);
}
+EXPORT_SYMBOL_GPL(i2c_dw_enable);
u32 i2c_dw_is_enabled(struct dw_i2c_dev *dev)
{
return dw_readl(dev, DW_IC_ENABLE);
}
+EXPORT_SYMBOL_GPL(i2c_dw_is_enabled);
void i2c_dw_disable(struct dw_i2c_dev *dev)
{
@@ -699,18 +706,22 @@ void i2c_dw_disable(struct dw_i2c_dev *dev)
dw_writel(dev, 0, DW_IC_INTR_MASK);
dw_readl(dev, DW_IC_CLR_INTR);
}
+EXPORT_SYMBOL_GPL(i2c_dw_disable);
void i2c_dw_clear_int(struct dw_i2c_dev *dev)
{
dw_readl(dev, DW_IC_CLR_INTR);
}
+EXPORT_SYMBOL_GPL(i2c_dw_clear_int);
void i2c_dw_disable_int(struct dw_i2c_dev *dev)
{
dw_writel(dev, 0, DW_IC_INTR_MASK);
}
+EXPORT_SYMBOL_GPL(i2c_dw_disable_int);
u32 i2c_dw_read_comp_param(struct dw_i2c_dev *dev)
{
return dw_readl(dev, DW_IC_COMP_PARAM_1);
}
+EXPORT_SYMBOL_GPL(i2c_dw_read_comp_param);