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40pin gpio control and led support

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August 2018-08-14 21:16:33 +08:00
parent 3c39232bb5
commit b4d28f2e73
8 changed files with 485 additions and 34 deletions
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38
lichee/linux-4.9/drivers/gpio/gpio-sunxi.c Normal file → Executable file
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@ -325,12 +325,21 @@ static int gpio_sw_resume(struct device *dev)
return 0;
}
static struct device_attribute gpio_sw_class_attrs[] = {
__ATTR(cfg, 0664, cfg_sel_show, cfg_sel_store),
__ATTR(pull, 0664, pull_show, pull_store),
__ATTR(drv, 0664, drv_level_show, drv_level_store),
__ATTR(data, 0664, data_show, data_store),
__ATTR_NULL,
static DEVICE_ATTR(cfg, 0664, cfg_sel_show, cfg_sel_store);
static DEVICE_ATTR(pull, 0664, pull_show, pull_store);
static DEVICE_ATTR(drv, 0664, drv_level_show, drv_level_store);
static DEVICE_ATTR(data, 0664, data_show, data_store);
static struct attribute *gpio_sw_class_attrs[] = {
&dev_attr_cfg.attr,
&dev_attr_pull.attr,
&dev_attr_drv.attr,
&dev_attr_data.attr,
NULL
};
static const struct attribute_group gpio_sw_class_attr_group = {
.attrs = gpio_sw_class_attrs,
};
static struct device_attribute easy_light_attr =
@ -370,10 +379,15 @@ gpio_sw_classdev_register(struct device *parent,
gpio_sw_cdev->name);
if (IS_ERR(gpio_sw_cdev->dev))
return PTR_ERR(gpio_sw_cdev->dev);
if (easy_light_used && strlen(pdata->link)) {
if (sysfs_create_file(&gpio_sw_cdev->dev->kobj, &easy_light_attr.attr))
pr_err("gpio_sw: sysfs_create_file fail\n");
}
if (sysfs_create_group(&gpio_sw_cdev->dev->kobj, &gpio_sw_class_attr_group))
pr_err("gpio_sw: sysfs_create_file fail\n");
down_write(&gpio_sw_list_lock);
list_add_tail(&gpio_sw_cdev->node, &gpio_sw_list);
up_write(&gpio_sw_list_lock);
@ -566,7 +580,7 @@ static struct platform_driver gpio_sw_driver = {
},
};
static void __exit gpio_sw_exit(void)
static void gpio_sw_exit(void)
{
int i, cnt;
struct gpio_config config;
@ -624,7 +638,7 @@ static int sunxi_init_gpio_probe(struct platform_device *pdev)
gpio_sw_class->suspend = gpio_sw_suspend;
gpio_sw_class->resume = gpio_sw_resume;
gpio_sw_class->class_attrs = (struct class_attribute *)gpio_sw_class_attrs;
//gpio_sw_class->class_attrs = (struct class_attribute *)gpio_sw_class_attrs;
if (of_property_read_u32(node, "easy_light_used", &easy_light_used)) {
easy_light_used = 0;
@ -740,8 +754,14 @@ static int __init sunxi_gpio_init(void)
return 0;
}
static void __exit sunxi_gpio_exit(void)
{
gpio_sw_exit();
platform_driver_unregister(&sunxi_gpio_driver);
}
module_init(sunxi_gpio_init);
module_exit(gpio_sw_exit);
module_exit(sunxi_gpio_exit);
MODULE_AUTHOR("yanjianbo");
MODULE_DESCRIPTION("SW GPIO USER driver");