threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
85 lines
2.0 KiB
C
85 lines
2.0 KiB
C
#include <linux/device.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/wait.h>
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#include <linux/types.h>
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#include <linux/device.h>
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#include <linux/gpio.h>
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#include <linux/of.h>
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#include <linux/of_gpio.h>
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#include <linux/of_address.h>
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#include <linux/of_device.h>
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#include <linux/platform_device.h>
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#include <linux/poll.h>
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#include <linux/slab.h>
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struct simtray_data {
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struct device *dev;
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int status_gpio;
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};
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static ssize_t simtray_status_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct simtray_data *data = dev_get_drvdata(dev);
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return scnprintf(buf, PAGE_SIZE, "%d\n", gpio_get_value(data->status_gpio));
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}
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static DEVICE_ATTR(status, 0444, simtray_status_show, NULL);
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static int simtray_probe(struct platform_device *pdev)
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{
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int ret = 0;
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struct device *dev = &pdev->dev;
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struct device_node *np = dev->of_node;
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struct simtray_data *data;
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pr_info("%s enter\n", __func__);
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data = devm_kzalloc(dev, sizeof(struct simtray_data), GFP_KERNEL);
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if (!data)
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return -ENOMEM;
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data->status_gpio = of_get_named_gpio(np, "status-gpio", 0);
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if (data->status_gpio < 0)
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return -EINVAL;
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ret = sysfs_create_file(&dev->kobj, &dev_attr_status.attr);
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if (ret < 0) {
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dev_err(dev, "Failed to create sysfs node.\n");
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return -EINVAL;
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}
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data->dev = dev;
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platform_set_drvdata(pdev, data);
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return ret;
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}
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static int simtray_remove(struct platform_device *pdev)
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{
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sysfs_remove_file(&pdev->dev.kobj, &dev_attr_status.attr);
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return 0;
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}
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static const struct of_device_id simtray_of_match[] = {
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{ .compatible = "xiaomi,simtray-status", },
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{},
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};
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static struct platform_driver simtray_status_driver = {
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.driver = {
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.name = "simtray-status",
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.owner = THIS_MODULE,
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.of_match_table = of_match_ptr(simtray_of_match),
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},
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.probe = simtray_probe,
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.remove = simtray_remove,
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};
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module_platform_driver(simtray_status_driver);
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MODULE_AUTHOR("Tao Jun<taojun@xiaomi.com>");
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MODULE_DESCRIPTION("Xiaomi SIM tray status");
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MODULE_LICENSE("GPL");
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