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authorAlastair D'Silva <alastair@d-silva.org>2016-12-27 14:59:29 +0000
committerPeter Maydell <peter.maydell@linaro.org>2016-12-27 14:59:29 +0000
commit9e41bade85ef338afd983c109368d1bbbe931f80 (patch)
tree2356fb69bf69a56f9b21f05945dc368f7c137284 /hw
parent8e953a658fa13b05bea67899a91d8b65f2b89f11 (diff)
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hw/i2c: Add a NULL check for i2c slave init callbacks
Add a NULL check for i2c slave init callbacks, so that we no longer need to implement empty init functions. Signed-off-by: Alastair D'Silva <alastair@d-silva.org> Message-id: 20161202054617.6749-4-alastair@au1.ibm.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> [PMM: squashed in later tweak from Alistair to if() phrasing] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw')
-rw-r--r--hw/arm/pxa2xx.c7
-rw-r--r--hw/arm/tosa.c7
-rw-r--r--hw/arm/z2.c7
-rw-r--r--hw/i2c/core.c6
-rw-r--r--hw/timer/ds1338.c6
5 files changed, 5 insertions, 28 deletions
diff --git a/hw/arm/pxa2xx.c b/hw/arm/pxa2xx.c
index 8aa0f8a..bdcf6bc 100644
--- a/hw/arm/pxa2xx.c
+++ b/hw/arm/pxa2xx.c
@@ -1449,17 +1449,10 @@ static const VMStateDescription vmstate_pxa2xx_i2c = {
}
};
-static int pxa2xx_i2c_slave_init(I2CSlave *i2c)
-{
- /* Nothing to do. */
- return 0;
-}
-
static void pxa2xx_i2c_slave_class_init(ObjectClass *klass, void *data)
{
I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);
- k->init = pxa2xx_i2c_slave_init;
k->event = pxa2xx_i2c_event;
k->recv = pxa2xx_i2c_rx;
k->send = pxa2xx_i2c_tx;
diff --git a/hw/arm/tosa.c b/hw/arm/tosa.c
index 1ee12f4..39d9dbb 100644
--- a/hw/arm/tosa.c
+++ b/hw/arm/tosa.c
@@ -202,12 +202,6 @@ static int tosa_dac_recv(I2CSlave *s)
return -1;
}
-static int tosa_dac_init(I2CSlave *i2c)
-{
- /* Nothing to do. */
- return 0;
-}
-
static void tosa_tg_init(PXA2xxState *cpu)
{
I2CBus *bus = pxa2xx_i2c_bus(cpu->i2c[0]);
@@ -275,7 +269,6 @@ static void tosa_dac_class_init(ObjectClass *klass, void *data)
{
I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);
- k->init = tosa_dac_init;
k->event = tosa_dac_event;
k->recv = tosa_dac_recv;
k->send = tosa_dac_send;
diff --git a/hw/arm/z2.c b/hw/arm/z2.c
index 68a92f3..b3a6bbd 100644
--- a/hw/arm/z2.c
+++ b/hw/arm/z2.c
@@ -263,12 +263,6 @@ static int aer915_recv(I2CSlave *slave)
return retval;
}
-static int aer915_init(I2CSlave *i2c)
-{
- /* Nothing to do. */
- return 0;
-}
-
static VMStateDescription vmstate_aer915_state = {
.name = "aer915",
.version_id = 1,
@@ -285,7 +279,6 @@ static void aer915_class_init(ObjectClass *klass, void *data)
DeviceClass *dc = DEVICE_CLASS(klass);
I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);
- k->init = aer915_init;
k->event = aer915_event;
k->recv = aer915_recv;
k->send = aer915_send;
diff --git a/hw/i2c/core.c b/hw/i2c/core.c
index abd4c4c..e40781e 100644
--- a/hw/i2c/core.c
+++ b/hw/i2c/core.c
@@ -260,7 +260,11 @@ static int i2c_slave_qdev_init(DeviceState *dev)
I2CSlave *s = I2C_SLAVE(dev);
I2CSlaveClass *sc = I2C_SLAVE_GET_CLASS(s);
- return sc->init(s);
+ if (sc->init) {
+ return sc->init(s);
+ }
+
+ return 0;
}
DeviceState *i2c_create_slave(I2CBus *bus, const char *name, uint8_t addr)
diff --git a/hw/timer/ds1338.c b/hw/timer/ds1338.c
index 0112949..f5d04dd 100644
--- a/hw/timer/ds1338.c
+++ b/hw/timer/ds1338.c
@@ -198,11 +198,6 @@ static int ds1338_send(I2CSlave *i2c, uint8_t data)
return 0;
}
-static int ds1338_init(I2CSlave *i2c)
-{
- return 0;
-}
-
static void ds1338_reset(DeviceState *dev)
{
DS1338State *s = DS1338(dev);
@@ -220,7 +215,6 @@ static void ds1338_class_init(ObjectClass *klass, void *data)
DeviceClass *dc = DEVICE_CLASS(klass);
I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);
- k->init = ds1338_init;
k->event = ds1338_event;
k->recv = ds1338_recv;
k->send = ds1338_send;