C++ (Cpp) tps6586x_add_subdevs Examples

Example #1

File: tps6586x.c Project: AshishPrasad/BTP

static int __devinit tps6586x_i2c_probe(struct i2c_client *client,
					const struct i2c_device_id *id)
{
	struct tps6586x_platform_data *pdata = client->dev.platform_data;
	struct tps6586x *tps6586x;
	int ret;

	if (!pdata) {
		dev_err(&client->dev, "tps6586x requires platform data\n");
		return -ENOTSUPP;
	}

	ret = i2c_smbus_read_byte_data(client, TPS6586X_VERSIONCRC);
	if (ret < 0) {
		dev_err(&client->dev, "Chip ID read failed: %d\n", ret);
		return -EIO;
	}

	if (ret != TPS658621A_VERSIONCRC) {
		dev_err(&client->dev, "Unsupported chip ID: %x\n", ret);
		return -ENODEV;
	}

	tps6586x = kzalloc(sizeof(struct tps6586x), GFP_KERNEL);
	if (tps6586x == NULL)
		return -ENOMEM;

	tps6586x->client = client;
	tps6586x->dev = &client->dev;
	i2c_set_clientdata(client, tps6586x);

	mutex_init(&tps6586x->lock);

	ret = tps6586x_add_subdevs(tps6586x, pdata);
	if (ret) {
		dev_err(&client->dev, "add devices failed: %d\n", ret);
		goto err_add_devs;
	}

	tps6586x_gpio_init(tps6586x, pdata->gpio_base);

	return 0;

err_add_devs:
	kfree(tps6586x);
	return ret;
}

Example #2

File: tps6586x.c Project: Konstantin-La/android_kernel_ideapad_k1

static int __devinit tps6586x_i2c_probe(struct i2c_client *client,
					const struct i2c_device_id *id)
{
	struct tps6586x_platform_data *pdata = client->dev.platform_data;
	struct tps6586x *tps6586x;
	int ret;

	if (!pdata) {
		dev_err(&client->dev, "tps6586x requires platform data\n");
		return -ENOTSUPP;
	}

	ret = i2c_smbus_read_byte_data(client, TPS6586X_VERSIONCRC);
	if (ret < 0) {
		dev_err(&client->dev, "Chip ID read failed: %d\n", ret);
		return -EIO;
	}

	dev_info(&client->dev, "VERSIONCRC is %02x\n", ret);

	tps6586x = kzalloc(sizeof(struct tps6586x), GFP_KERNEL);
	if (tps6586x == NULL)
		return -ENOMEM;

	tps6586x->client = client;
	tps6586x->dev = &client->dev;
	i2c_set_clientdata(client, tps6586x);

	mutex_init(&tps6586x->lock);

	if (client->irq) {
		ret = tps6586x_irq_init(tps6586x, client->irq,
					pdata->irq_base);
		if (ret) {
			dev_err(&client->dev, "IRQ init failed: %d\n", ret);
			goto err_irq_init;
		}
	}

	ret = tps6586x_gpio_init(tps6586x, pdata->gpio_base);
	if (ret) {
		dev_err(&client->dev, "GPIO registration failed: %d\n", ret);
		goto err_gpio_init;
	}

	ret = tps6586x_add_subdevs(tps6586x, pdata);
	if (ret) {
		dev_err(&client->dev, "add devices failed: %d\n", ret);
		goto err_add_devs;
	}

	tps6586x_i2c_client = client;

	return 0;

err_add_devs:
	if (pdata->gpio_base) {
		ret = gpiochip_remove(&tps6586x->gpio);
		if (ret)
			dev_err(&client->dev, "Can't remove gpio chip: %d\n",
				ret);
	}
err_gpio_init:
	if (client->irq)
		free_irq(client->irq, tps6586x);
err_irq_init:
	kfree(tps6586x);
	return ret;
}