i2c: pasemi: split driver into two separate modules

On powerpc, it is possible to compile test both the new apple (arm) and
old pasemi (powerpc) drivers for the i2c hardware at the same time,
which leads to a warning about linking the same object file twice:

scripts/Makefile.build:244: drivers/i2c/busses/Makefile: i2c-pasemi-core.o is added to multiple modules: i2c-apple i2c-pasemi

Rework the driver to have an explicit helper module, letting Kbuild
take care of whether this should be built-in or a loadable driver.

Fixes: 9bc5f4f660ff ("i2c: pasemi: Split pci driver to its own file")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Sven Peter <sven@svenpeter.dev>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>

diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile
index 3757b9391e60ae9b0e1c2ec5e564e0ae55af0c2a..aa0ee8ecd6f2f53ea109cfeacffe5e2682ae228e 100644 (file)
--- a/drivers/i2c/busses/Makefile
+++ b/drivers/i2c/busses/Makefile
@@ -90,10 +90,8 @@ obj-$(CONFIG_I2C_NPCM)               += i2c-npcm7xx.o
 obj-$(CONFIG_I2C_OCORES)       += i2c-ocores.o
 obj-$(CONFIG_I2C_OMAP)         += i2c-omap.o
 obj-$(CONFIG_I2C_OWL)          += i2c-owl.o
-i2c-pasemi-objs := i2c-pasemi-core.o i2c-pasemi-pci.o
-obj-$(CONFIG_I2C_PASEMI)       += i2c-pasemi.o
-i2c-apple-objs := i2c-pasemi-core.o i2c-pasemi-platform.o
-obj-$(CONFIG_I2C_APPLE)        += i2c-apple.o
+obj-$(CONFIG_I2C_PASEMI)       += i2c-pasemi-core.o i2c-pasemi-pci.o
+obj-$(CONFIG_I2C_APPLE)                += i2c-pasemi-core.o i2c-pasemi-platform.o
 obj-$(CONFIG_I2C_PCA_PLATFORM) += i2c-pca-platform.o
 obj-$(CONFIG_I2C_PNX)          += i2c-pnx.o
 obj-$(CONFIG_I2C_PXA)          += i2c-pxa.o

diff --git a/drivers/i2c/busses/i2c-pasemi-core.c b/drivers/i2c/busses/i2c-pasemi-core.c
index 7d54a9f34c74b5a3b074a469dca674eb286dd50d..bd8becbdeeb28f4aa7f094df18fa7d059113dcae 100644 (file)
--- a/drivers/i2c/busses/i2c-pasemi-core.c
+++ b/drivers/i2c/busses/i2c-pasemi-core.c
@@ -369,6 +369,7 @@ int pasemi_i2c_common_probe(struct pasemi_smbus *smbus)
 
        return 0;
 }
+EXPORT_SYMBOL_GPL(pasemi_i2c_common_probe);
 
 irqreturn_t pasemi_irq_handler(int irq, void *dev_id)
 {
@@ -378,3 +379,8 @@ irqreturn_t pasemi_irq_handler(int irq, void *dev_id)
        complete(&smbus->irq_completion);
        return IRQ_HANDLED;
 }
+EXPORT_SYMBOL_GPL(pasemi_irq_handler);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Olof Johansson <olof@lixom.net>");
+MODULE_DESCRIPTION("PA Semi PWRficient SMBus driver");