高通8953 gpio口的配置

高通8953芯片的GPIO口配置可以通过以下步骤实现：

1.在设备树中定义GPIO节点，例如：

gpio: gpio@100000 {
    compatible = "qcom,gpio";
    reg = <0x100000 0x10000>;
    interrupts = <0 80 0>;
    gpio-controller;
    #gpio-cells = <2>;
};

2.在驱动程序中使用GPIO API来配置GPIO口，例如：

static struct gpio_chip msm_gpio_chip = {
    .label = "msm_gpio",
    .direction_input = msm_gpio_direction_input,
    .direction_output = msm_gpio_direction_output,
    .get = msm_gpio_get,
    .set = msm_gpio_set,
    .base = -1,
    .ngpio = 128,
};

static int msm_gpio_probe(struct platform_device *pdev)
{
    int ret;

    ret = gpiochip_add_data(&msm_gpio_chip, NULL);
    if (ret) {
        dev_err(&pdev->dev, "could not add gpiochip\n");
        return ret;
    }

    return 0;
}

static int msm_gpio_remove(struct platform_device *pdev)
{
    gpiochip_remove(&msm_gpio_chip);
    return 0;
}

static struct platform_driver msm_gpio_driver = {
    .probe = msm_gpio_probe,
    .remove = msm_gpio_remove,
    .driver = {
        .name = "msm_gpio",
        .of_match_table = of_match_ptr(msm_gpio_of_match),
    },
};

在上述驱动程序中，msm_gpio_chip结构体代表GPIO芯片，包含一些GPIO API回调函数，如direction_input、direction_output、get和set等。gpiochip_add_data()函数将msm_gpio_chip注册到内核中，使得用户空间可以访问该GPIO芯片。

以上是一个简单的GPIO口配置的示例，具体实现还需要根据具体的硬件和应用需求进行调整。