[Qemu-arm] [PATCH v3 3/6] smbus: add a smbus_eeprom_init_one() routine

[Cédric Le Goater]

This is an helper routine to add a single EEPROM on an I2C bus. It can
be directly used by smbus_eeprom_init() which adds a certain number of
EEPROMs on mips and x86 machines.

Signed-off-by: Cédric Le Goater <address@hidden>
Reviewed-by: Philippe Mathieu-Daudé <address@hidden>
---
 hw/i2c/smbus_eeprom.c  | 16 +++++++++++-----
 include/hw/i2c/smbus.h |  1 +
 2 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/hw/i2c/smbus_eeprom.c b/hw/i2c/smbus_eeprom.c
index b13ec0fe7a2a..2d24a4cd59bf 100644
--- a/hw/i2c/smbus_eeprom.c
+++ b/hw/i2c/smbus_eeprom.c
@@ -140,6 +140,16 @@ static void smbus_eeprom_register_types(void)
 
 type_init(smbus_eeprom_register_types)
 
+void smbus_eeprom_init_one(I2CBus *smbus, uint8_t address, uint8_t *eeprom_buf)
+{
+    DeviceState *dev;
+
+    dev = qdev_create((BusState *) smbus, "smbus-eeprom");
+    qdev_prop_set_uint8(dev, "address", address);
+    qdev_prop_set_ptr(dev, "data", eeprom_buf);
+    qdev_init_nofail(dev);
+}
+
 void smbus_eeprom_init(I2CBus *smbus, int nb_eeprom,
                        const uint8_t *eeprom_spd, int eeprom_spd_size)
 {
@@ -150,10 +160,6 @@ void smbus_eeprom_init(I2CBus *smbus, int nb_eeprom,
     }
 
     for (i = 0; i < nb_eeprom; i++) {
-        DeviceState *eeprom;
-        eeprom = qdev_create((BusState *)smbus, "smbus-eeprom");
-        qdev_prop_set_uint8(eeprom, "address", 0x50 + i);
-        qdev_prop_set_ptr(eeprom, "data", eeprom_buf + (i * 256));
-        qdev_init_nofail(eeprom);
+        smbus_eeprom_init_one(smbus, 0x50 + i, eeprom_buf + (i * 256));
     }
 }
diff --git a/include/hw/i2c/smbus.h b/include/hw/i2c/smbus.h
index 544bbc19574f..666cdeb04c07 100644
--- a/include/hw/i2c/smbus.h
+++ b/include/hw/i2c/smbus.h
@@ -77,6 +77,7 @@ int smbus_read_block(I2CBus *bus, uint8_t addr, uint8_t 
command, uint8_t *data);
 int smbus_write_block(I2CBus *bus, uint8_t addr, uint8_t command, uint8_t 
*data,
                       int len);
 
+void smbus_eeprom_init_one(I2CBus *smbus, uint8_t address, uint8_t 
*eeprom_buf);
 void smbus_eeprom_init(I2CBus *smbus, int nb_eeprom,
                        const uint8_t *eeprom_spd, int size);
 
-- 
2.13.6