device/smbus: Reuse I2C bus operations where applicable

Reuse generic I2C functions that work for SMBus operations as well.

Change-Id: I5a93f17b905de38752254891aa4347ba4ed3b205
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/20855
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

1 files changed, 21 insertions, 5 deletions

diff --git a/src/include/device/smbus.h b/src/include/device/smbus.h
index 80eafdb969..5e51b5d267 100644
--- a/src/include/device/smbus.h
+++ b/src/include/device/smbus.h
@@ -3,7 +3,7 @@
 
 #include <stdint.h>
 #include <device/device.h>
-#include <device/path.h>
+#include <device/i2c_bus.h>
 #include <device/smbus_def.h>
 
 /* Common SMBus bus operations */
@@ -30,10 +30,26 @@ static inline const struct smbus_bus_operations *ops_smbus_bus(struct bus *bus)
 struct bus *get_pbus_smbus(device_t dev);
 int smbus_set_link(device_t dev);
 
-int smbus_recv_byte(device_t dev);
-int smbus_send_byte(device_t dev, u8 byte);
-int smbus_read_byte(device_t dev, u8 addr);
-int smbus_write_byte(device_t dev, u8 addr, u8 val);
+static inline int smbus_recv_byte(struct device *const dev)
+{
+	return i2c_readb(dev);
+}
+
+static inline int smbus_send_byte(struct device *const dev, u8 byte)
+{
+	return i2c_writeb(dev, byte);
+}
+
+static inline int smbus_read_byte(struct device *const dev, u8 addr)
+{
+	return i2c_readb_at(dev, addr);
+}
+
+static inline int smbus_write_byte(struct device *const dev, u8 addr, u8 val)
+{
+	return i2c_writeb_at(dev, addr, val);
+}
+
 int smbus_block_read(device_t dev, u8 cmd, u8 bytes, u8 *buffer);
 int smbus_block_write(device_t dev, u8 cmd, u8 bytes, const u8 *buffer);