dm: usb: Rename usb_find_child to usb_find_emul_child

[oweals/u-boot.git] / drivers / i2c / i2c-uclass.c

diff --git a/drivers/i2c/i2c-uclass.c b/drivers/i2c/i2c-uclass.c
index a6991bf875df70a771d88a5d27c19fccd0d4af90..eaba965fa31a64c999e31339e07c0acfbaf0fc84 100644 (file)
--- a/drivers/i2c/i2c-uclass.c
+++ b/drivers/i2c/i2c-uclass.c
@@ -186,6 +186,25 @@ int dm_i2c_write(struct udevice *dev, uint offset, const uint8_t *buffer,
        }
 }
 
+int dm_i2c_reg_read(struct udevice *dev, uint offset)
+{
+       uint8_t val;
+       int ret;
+
+       ret = dm_i2c_read(dev, offset, &val, 1);
+       if (ret < 0)
+               return ret;
+
+       return val;
+}
+
+int dm_i2c_reg_write(struct udevice *dev, uint offset, uint value)
+{
+       uint8_t val = value;
+
+       return dm_i2c_write(dev, offset, &val, 1);
+}
+
 /**
  * i2c_probe_chip() - probe for a chip on a bus
  *
@@ -230,6 +249,8 @@ static int i2c_bind_driver(struct udevice *bus, uint chip_addr, uint offset_len,
 
        snprintf(name, sizeof(name), "generic_%x", chip_addr);
        str = strdup(name);
+       if (!str)
+               return -ENOMEM;
        ret = device_bind_driver(bus, "i2c_generic_chip_drv", str, &dev);
        debug("%s:  device_bind_driver: ret=%d\n", __func__, ret);
        if (ret)
@@ -328,7 +349,7 @@ int dm_i2c_probe(struct udevice *bus, uint chip_addr, uint chip_flags,
 int dm_i2c_set_bus_speed(struct udevice *bus, unsigned int speed)
 {
        struct dm_i2c_ops *ops = i2c_get_ops(bus);
-       struct dm_i2c_bus *i2c = bus->uclass_priv;
+       struct dm_i2c_bus *i2c = dev_get_uclass_priv(bus);
        int ret;
 
        /*
@@ -349,7 +370,7 @@ int dm_i2c_set_bus_speed(struct udevice *bus, unsigned int speed)
 int dm_i2c_get_bus_speed(struct udevice *bus)
 {
        struct dm_i2c_ops *ops = i2c_get_ops(bus);
-       struct dm_i2c_bus *i2c = bus->uclass_priv;
+       struct dm_i2c_bus *i2c = dev_get_uclass_priv(bus);
 
        if (!ops->get_bus_speed)
                return i2c->speed_hz;
@@ -394,6 +415,13 @@ int i2c_set_chip_offset_len(struct udevice *dev, uint offset_len)
        return 0;
 }
 
+int i2c_get_chip_offset_len(struct udevice *dev)
+{
+       struct dm_i2c_chip *chip = dev_get_parent_platdata(dev);
+
+       return chip->offset_len;
+}
+
 int i2c_deblock(struct udevice *bus)
 {
        struct dm_i2c_ops *ops = i2c_get_ops(bus);
@@ -430,7 +458,7 @@ int i2c_chip_ofdata_to_platdata(const void *blob, int node,
 
 static int i2c_post_probe(struct udevice *dev)
 {
-       struct dm_i2c_bus *i2c = dev->uclass_priv;
+       struct dm_i2c_bus *i2c = dev_get_uclass_priv(dev);
 
        i2c->speed_hz = fdtdec_get_int(gd->fdt_blob, dev->of_offset,
                                     "clock-frequency", 100000);