1 // SPDX-License-Identifier: GPL-2.0 2 #include <linux/kernel.h> 3 #include <linux/of.h> 4 #include <linux/stat.h> 5 /* FIX UP */ 6 #include "soundbus.h" 7 8 static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, 9 char *buf) 10 { 11 struct soundbus_dev *sdev = to_soundbus_device(dev); 12 struct platform_device *of = &sdev->ofdev; 13 14 if (*sdev->modalias) 15 return sysfs_emit(buf, "%s\n", sdev->modalias); 16 else 17 return sysfs_emit(buf, "of:N%pOFn%c%s\n", 18 of->dev.of_node, 'T', 19 of_node_get_device_type(of->dev.of_node)); 20 } 21 static DEVICE_ATTR_RO(modalias); 22 23 static ssize_t name_show(struct device *dev, 24 struct device_attribute *attr, char *buf) 25 { 26 struct soundbus_dev *sdev = to_soundbus_device(dev); 27 struct platform_device *of = &sdev->ofdev; 28 29 return sysfs_emit(buf, "%pOFn\n", of->dev.of_node); 30 } 31 static DEVICE_ATTR_RO(name); 32 33 static ssize_t type_show(struct device *dev, 34 struct device_attribute *attr, char *buf) 35 { 36 struct soundbus_dev *sdev = to_soundbus_device(dev); 37 struct platform_device *of = &sdev->ofdev; 38 39 return sysfs_emit(buf, "%s\n", of_node_get_device_type(of->dev.of_node)); 40 } 41 static DEVICE_ATTR_RO(type); 42 43 struct attribute *soundbus_dev_attrs[] = { 44 &dev_attr_name.attr, 45 &dev_attr_type.attr, 46 &dev_attr_modalias.attr, 47 NULL, 48 }; 49