1 #include <linux/kernel.h> 2 #include <linux/stat.h> 3 #include <asm/macio.h> 4 5 6 #define macio_config_of_attr(field, format_string) \ 7 static ssize_t \ 8 field##_show (struct device *dev, struct device_attribute *attr, \ 9 char *buf) \ 10 { \ 11 struct macio_dev *mdev = to_macio_device (dev); \ 12 return sprintf (buf, format_string, mdev->ofdev.dev.of_node->field); \ 13 } \ 14 static DEVICE_ATTR_RO(field); 15 16 static ssize_t 17 compatible_show (struct device *dev, struct device_attribute *attr, char *buf) 18 { 19 struct platform_device *of; 20 const char *compat; 21 int cplen; 22 int length = 0; 23 24 of = &to_macio_device (dev)->ofdev; 25 compat = of_get_property(of->dev.of_node, "compatible", &cplen); 26 if (!compat) { 27 *buf = '\0'; 28 return 0; 29 } 30 while (cplen > 0) { 31 int l; 32 length += sprintf (buf, "%s\n", compat); 33 buf += length; 34 l = strlen (compat) + 1; 35 compat += l; 36 cplen -= l; 37 } 38 39 return length; 40 } 41 static DEVICE_ATTR_RO(compatible); 42 43 static ssize_t modalias_show (struct device *dev, struct device_attribute *attr, 44 char *buf) 45 { 46 return of_device_modalias(dev, buf, PAGE_SIZE); 47 } 48 49 static ssize_t devspec_show(struct device *dev, 50 struct device_attribute *attr, char *buf) 51 { 52 struct platform_device *ofdev; 53 54 ofdev = to_platform_device(dev); 55 return sprintf(buf, "%pOF\n", ofdev->dev.of_node); 56 } 57 static DEVICE_ATTR_RO(modalias); 58 static DEVICE_ATTR_RO(devspec); 59 60 macio_config_of_attr (name, "%s\n"); 61 macio_config_of_attr (type, "%s\n"); 62 63 static struct attribute *macio_dev_attrs[] = { 64 &dev_attr_name.attr, 65 &dev_attr_type.attr, 66 &dev_attr_compatible.attr, 67 &dev_attr_modalias.attr, 68 &dev_attr_devspec.attr, 69 NULL, 70 }; 71 72 static const struct attribute_group macio_dev_group = { 73 .attrs = macio_dev_attrs, 74 }; 75 76 const struct attribute_group *macio_dev_groups[] = { 77 &macio_dev_group, 78 NULL, 79 }; 80