i2c: Deprecate i2c_driver.attach_adapter and .detach_adapter
The last legitimate user of i2c_driver.attach_adapter and
.detach_adapter is gone, so we can finally deprecate these callbacks.
The last few drivers which still use these will have to be updated to
make use of standard I2C device instantiation ways instead.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
diff --git a/drivers/i2c/Makefile b/drivers/i2c/Makefile
index 23ac61e..beee6b2 100644
--- a/drivers/i2c/Makefile
+++ b/drivers/i2c/Makefile
@@ -10,3 +10,4 @@
obj-y += algos/ busses/ muxes/
ccflags-$(CONFIG_I2C_DEBUG_CORE) := -DDEBUG
+CFLAGS_i2c-core.o := -Wno-deprecated-declarations
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index b9fa1d0..e5f76a0 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -797,6 +797,9 @@
/* Let legacy drivers scan this bus for matching devices */
if (driver->attach_adapter) {
+ dev_warn(&adap->dev, "attach_adapter method is deprecated\n");
+ dev_warn(&adap->dev, "Please use another way to instantiate "
+ "your i2c_client\n");
/* We ignore the return code; if it fails, too bad */
driver->attach_adapter(adap);
}
@@ -981,6 +984,7 @@
if (!driver->detach_adapter)
return 0;
+ dev_warn(&adapter->dev, "detach_adapter method is deprecated\n");
res = driver->detach_adapter(adapter);
if (res)
dev_err(&adapter->dev, "detach_adapter failed (%d) "