1 files changed, 48 insertions, 0 deletions
diff --git a/sound/aoa/soundbus/sysfs.c b/sound/aoa/soundbus/sysfs.c
new file mode 100644
index 000000000..e87b28428
--- /dev/null
+++ b/sound/aoa/soundbus/sysfs.c
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/kernel.h>
+#include <linux/of.h>
+#include <linux/stat.h>
+/* FIX UP */
+#include "soundbus.h"
+
+static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
+			     char *buf)
+{
+	struct soundbus_dev *sdev = to_soundbus_device(dev);
+	struct platform_device *of = &sdev->ofdev;
+
+	if (*sdev->modalias)
+		return sysfs_emit(buf, "%s\n", sdev->modalias);
+	else
+		return sysfs_emit(buf, "of:N%pOFn%c%s\n",
+				  of->dev.of_node, 'T',
+				  of_node_get_device_type(of->dev.of_node));
+}
+static DEVICE_ATTR_RO(modalias);
+
+static ssize_t name_show(struct device *dev,
+			 struct device_attribute *attr, char *buf)
+{
+	struct soundbus_dev *sdev = to_soundbus_device(dev);
+	struct platform_device *of = &sdev->ofdev;
+
+	return sysfs_emit(buf, "%pOFn\n", of->dev.of_node);
+}
+static DEVICE_ATTR_RO(name);
+
+static ssize_t type_show(struct device *dev,
+			 struct device_attribute *attr, char *buf)
+{
+	struct soundbus_dev *sdev = to_soundbus_device(dev);
+	struct platform_device *of = &sdev->ofdev;
+
+	return sysfs_emit(buf, "%s\n", of_node_get_device_type(of->dev.of_node));
+}
+static DEVICE_ATTR_RO(type);
+
+struct attribute *soundbus_dev_attrs[] = {
+	&dev_attr_name.attr,
+	&dev_attr_type.attr,
+	&dev_attr_modalias.attr,
+	NULL,
+};