[Qemu-devel] [PATCH 2/8] hw/i2c/Kconfig: Add an entry for the SMBus

[Philippe Mathieu-Daudé]

The System Management Bus is more or less a derivative of the I2C
bus, thus the Kconfig entry depends of I2C.
Not all boards providing an I2C bus support SMBus.
Use two different Kconfig entries to be able to select I2C without
selecting SMBus.

Signed-off-by: Philippe Mathieu-Daudé <address@hidden>
---
 default-configs/mips-softmmu-common.mak | 1 +
 hw/i2c/Kconfig                          | 8 ++++++--
 hw/i2c/Makefile.objs                    | 3 ++-
 3 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/default-configs/mips-softmmu-common.mak 
b/default-configs/mips-softmmu-common.mak
index bad7ee3360..6f49a3a8c7 100644
--- a/default-configs/mips-softmmu-common.mak
+++ b/default-configs/mips-softmmu-common.mak
@@ -36,6 +36,7 @@ CONFIG_MIPS_ITU=y
 CONFIG_R4K=y
 CONFIG_MALTA=y
 CONFIG_MIPSSIM=y
+CONFIG_SMBUS=y
 CONFIG_ACPI_SMBUS=y
 CONFIG_SMBUS_EEPROM=y
 CONFIG_TEST_DEVICES=y
diff --git a/hw/i2c/Kconfig b/hw/i2c/Kconfig
index 820b24de5b..2f9fc2bedd 100644
--- a/hw/i2c/Kconfig
+++ b/hw/i2c/Kconfig
@@ -1,9 +1,13 @@
 config I2C
     bool
 
+config SMBUS
+    bool
+    select I2C
+
 config SMBUS_EEPROM
     bool
-    depends on I2C
+    select SMBUS
 
 config DDC
     bool
@@ -16,7 +20,7 @@ config VERSATILE_I2C
 
 config ACPI_SMBUS
     bool
-    select I2C
+    select SMBUS
 
 config BITBANG_I2C
     bool
diff --git a/hw/i2c/Makefile.objs b/hw/i2c/Makefile.objs
index 5f76b6a990..a98c786918 100644
--- a/hw/i2c/Makefile.objs
+++ b/hw/i2c/Makefile.objs
@@ -1,4 +1,5 @@
-common-obj-$(CONFIG_I2C) += core.o smbus_slave.o smbus_master.o
+common-obj-$(CONFIG_I2C) += core.o
+common-obj-$(CONFIG_SMBUS) += smbus_slave.o smbus_master.o
 common-obj-$(CONFIG_SMBUS_EEPROM) += smbus_eeprom.o
 common-obj-$(CONFIG_DDC) += i2c-ddc.o
 common-obj-$(CONFIG_VERSATILE_I2C) += versatile_i2c.o
-- 
2.20.1