dm: i2c: Add a compatbility layer
For boards which use multiple I2C devices, or for SOCs which support
multiple boards, we might want to convert these to driver model at different
times. At present this is difficult because we need to either use
CONFIG_DM_I2C for a board or not.
Add a compatibility layer which implements the old API, thus allowing a
board to move to driver model for I2C without requiring that everything it
uses is moved in the same commit.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/Makefile b/Makefile
index ea5ae8f..9b406c8 100644
--- a/Makefile
+++ b/Makefile
@@ -776,6 +776,13 @@
@echo "See doc/README.generic-board for further information"
@echo "===================================================="
endif
+ifeq ($(CONFIG_DM_I2C_COMPAT),y)
+ @echo "===================== WARNING ======================"
+ @echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
+ @echo "(possibly in a subsequent patch in your series)"
+ @echo "before sending patches to the mailing list."
+ @echo "===================================================="
+endif
PHONY += dtbs
dtbs dts/dt.dtb: checkdtc u-boot