linux regulator

Linux regulator是一个用于管理电源的子系统，它可以控制电压、电流和功率等参数，以确保系统的稳定性和可靠性。它可以与硬件平台上的各种电源管理器件（如DC-DC转换器、LDO等）进行交互，从而实现对系统电源的精确控制。Linux regulator还提供了一套API，使得开发人员可以方便地访问和配置电源管理器件，以满足不同应用场景的需求。

相关问题

max20087 regulator linux driver

As an AI language model, I don't have access to specific code or driver implementations. However, I can provide you with some general information about the max20087 regulator and its Linux driver.

The MAX20087 is a high-voltage, low-quiescent current linear regulator that can operate with input voltages up to 60V. It provides a fixed output voltage and is suitable for use in a wide range of applications, including automotive, industrial, and communications systems.

In Linux, the MAX20087 regulator is supported by the max20087 driver, which is included in the mainline kernel since version 5.14. The driver provides a sysfs interface that allows users to control the regulator's voltage and enable/disable it.

To use the max20087 regulator driver, you need to enable the CONFIG_REGULATOR_MAX20087 kernel configuration option and build the driver as a loadable module or built-in. Once the driver is loaded, you can access the regulator through the sysfs interface (/sys/class/regulator/regulatorX), where X is the regulator's ID.

You can also use the regulator framework in your application code to interact with the max20087 regulator driver. The framework provides a set of functions and data structures that simplify the process of working with regulators in Linux.

Overall, the max20087 regulator driver is a straightforward and easy-to-use component of the Linux kernel that provides reliable voltage regulation for a wide range of applications.

regulator_enable

`regulator_enable()` 是一个在 Linux 设备驱动中使用的函数，用于启用一个设备的电源管理。在 中，驱动程序通常包含一个名为struct regulator` 的结构，用于控制设备的电源`regulator_enable()` 函数用于启用此结构体中描述的电源，以便设备可以正常工作。

以下是一个使用 `regulator_enable()` 函数的示例：

struct regulator *my_regulator;
int ret;

my_regulator = regulator_get(dev, "my-regulator");
if (IS_ERR(my_regulator)) {
    dev_err(dev, "Failed to get regulator\n");
    return PTR_ERR(my_regulator);
}

ret = regulator_enable(my_regulator);
if (ret) {
    dev_err(dev, "Failed to enable regulator\n");
    regulator_put(my_regulator);
    return ret;
}

/* 使用设备，完成后应该禁用电源 */
ret = use_device();
if (ret) {
    dev_err(dev, "Failed to use device\n");
    regulator_disable(my_regulator);
    regulator_put(my_regulator);
    return ret;
}

regulator_disable(my_regulator);
regulator_put(my_regulator);

在上面的示例中，我们首先使用 `regulator_get()` 函数获取一个名为 "my-regulator" 的电源。然后，我们使用 `regulator_enable()` 函数启用该电源，使用设备，最后使用 `regulator_disable()` 函数禁用电源。注意，我们还使用了 `regulator_put()` 函数释放了对电源的引用。