m68k: amiga - Zorro bus modalias support

Add Amiga Zorro bus modalias and uevent support

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

2 files changed, 35 insertions, 0 deletions

diff --git a/drivers/zorro/zorro-driver.c b/drivers/zorro/zorro-driver.c
index 53180a37cc9..7ee2b6e7178 100644
--- a/drivers/zorro/zorro-driver.c
+++ b/drivers/zorro/zorro-driver.c
@@ -137,10 +137,34 @@ static int zorro_bus_match(struct device *dev, struct device_driver *drv)
 	return 0;
 }
 
+static int zorro_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+#ifdef CONFIG_HOTPLUG
+	struct zorro_dev *z;
+
+	if (!dev)
+		return -ENODEV;
+
+	z = to_zorro_dev(dev);
+	if (!z)
+		return -ENODEV;
+
+	if (add_uevent_var(env, "ZORRO_ID=%08X", z->id) ||
+	    add_uevent_var(env, "ZORRO_SLOT_NAME=%s", dev_name(dev)) ||
+	    add_uevent_var(env, "ZORRO_SLOT_ADDR=%04X", z->slotaddr) ||
+	    add_uevent_var(env, "MODALIAS=" ZORRO_DEVICE_MODALIAS_FMT, z->id))
+		return -ENOMEM;
+
+	return 0;
+#else /* !CONFIG_HOTPLUG */
+	return -ENODEV;
+#endif /* !CONFIG_HOTPLUG */
+}
 
 struct bus_type zorro_bus_type = {
 	.name	= "zorro",
 	.match	= zorro_bus_match,
+	.uevent	= zorro_uevent,
 	.probe	= zorro_device_probe,
 	.remove	= zorro_device_remove,
 };
diff --git a/drivers/zorro/zorro-sysfs.c b/drivers/zorro/zorro-sysfs.c
index 1d2a772ea14..eb924e0a64c 100644
--- a/drivers/zorro/zorro-sysfs.c
+++ b/drivers/zorro/zorro-sysfs.c
@@ -77,6 +77,16 @@ static struct bin_attribute zorro_config_attr = {
 	.read = zorro_read_config,
 };
 
+static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
+			     char *buf)
+{
+	struct zorro_dev *z = to_zorro_dev(dev);
+
+	return sprintf(buf, ZORRO_DEVICE_MODALIAS_FMT "\n", z->id);
+}
+
+static DEVICE_ATTR(modalias, S_IRUGO, modalias_show, NULL);
+
 int zorro_create_sysfs_dev_files(struct zorro_dev *z)
 {
 	struct device *dev = &z->dev;
@@ -89,6 +99,7 @@ int zorro_create_sysfs_dev_files(struct zorro_dev *z)
 	    (error = device_create_file(dev, &dev_attr_slotaddr)) ||
 	    (error = device_create_file(dev, &dev_attr_slotsize)) ||
 	    (error = device_create_file(dev, &dev_attr_resource)) ||
+	    (error = device_create_file(dev, &dev_attr_modalias)) ||
 	    (error = sysfs_create_bin_file(&dev->kobj, &zorro_config_attr)))
 		return error;