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 int length; 14 15 if (*sdev->modalias) { 16 strscpy(buf, sdev->modalias, sizeof(sdev->modalias) + 1); 17 strcat(buf, "\n"); 18 length = strlen(buf); 19 } else { 20 length = sprintf(buf, "of:N%pOFn%c%s\n", 21 of->dev.of_node, 'T', 22 of_node_get_device_type(of->dev.of_node)); 23 } 24 25 return length; 26 } 27 static DEVICE_ATTR_RO(modalias); 28 29 static ssize_t name_show(struct device *dev, 30 struct device_attribute *attr, char *buf) 31 { 32 struct soundbus_dev *sdev = to_soundbus_device(dev); 33 struct platform_device *of = &sdev->ofdev; 34 35 return sprintf(buf, "%pOFn\n", of->dev.of_node); 36 } 37 static DEVICE_ATTR_RO(name); 38 39 static ssize_t type_show(struct device *dev, 40 struct device_attribute *attr, char *buf) 41 { 42 struct soundbus_dev *sdev = to_soundbus_device(dev); 43 struct platform_device *of = &sdev->ofdev; 44 45 return sprintf(buf, "%s\n", of_node_get_device_type(of->dev.of_node)); 46 } 47 static DEVICE_ATTR_RO(type); 48 49 struct attribute *soundbus_dev_attrs[] = { 50 &dev_attr_name.attr, 51 &dev_attr_type.attr, 52 &dev_attr_modalias.attr, 53 NULL, 54 }; 55