[POWERPC] PS3: System-bus modinfo attribute

Add modinfo attribute to ps3_system_bus devices.  Also make them all
children of the same ps3_system_bus 'device' so they appear in a
corresponding subdirectory under /sys/devices.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 15 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c
index 633603a53819..4bb634a17e43 100644
--- a/arch/powerpc/platforms/ps3/system-bus.c
+++ b/arch/powerpc/platforms/ps3/system-bus.c
@@ -452,6 +452,20 @@ static int ps3_system_bus_uevent(struct device *_dev, char **envp,
         return 0;
 }
 
+static ssize_t modalias_show(struct device *_dev, struct device_attribute *a,
+        char *buf)
+{
+        struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
+        int len = snprintf(buf, PAGE_SIZE, "ps3:%d\n", dev->match_id);
+
+        return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
+}
+
+static struct device_attribute ps3_system_bus_dev_attrs[] = {
+        __ATTR_RO(modalias),
+        __ATTR_NULL,
+};
+
 struct bus_type ps3_system_bus_type = {
         .name = "ps3_system_bus",
         .match = ps3_system_bus_match,
@@ -459,6 +473,7 @@ struct bus_type ps3_system_bus_type = {
         .probe = ps3_system_bus_probe,
         .remove = ps3_system_bus_remove,
         .shutdown = ps3_system_bus_shutdown,
+        .dev_attrs = ps3_system_bus_dev_attrs,
 };
 
 static int __init ps3_system_bus_init(void)