1 // SPDX-License-Identifier: GPL-2.0
2 #include <linux/kernel.h>
3 #include <linux/stat.h>
7 #define soundbus_config_of_attr(field, format_string) \
9 field##_show (struct device *dev, struct device_attribute *attr, \
12 struct soundbus_dev *mdev = to_soundbus_device (dev); \
13 return sprintf (buf, format_string, mdev->ofdev.dev.of_node->field); \
16 static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
19 struct soundbus_dev *sdev = to_soundbus_device(dev);
20 struct platform_device *of = &sdev->ofdev;
23 if (*sdev->modalias) {
24 strlcpy(buf, sdev->modalias, sizeof(sdev->modalias) + 1);
28 length = sprintf(buf, "of:N%sT%s\n",
29 of->dev.of_node->name, of->dev.of_node->type);
34 static DEVICE_ATTR_RO(modalias);
36 soundbus_config_of_attr (name, "%s\n");
37 static DEVICE_ATTR_RO(name);
38 soundbus_config_of_attr (type, "%s\n");
39 static DEVICE_ATTR_RO(type);
41 struct attribute *soundbus_dev_attrs[] = {
44 &dev_attr_modalias.attr,