ALSA: aoa: Remove direct OF name and type accesses

Convert soundbus uevent and sysfs OF node name and device type usage to use printf specifier and helper functions instead of directly accessing the name and type pointers. This will allow the eventual removal of the pointers. Signed-off-by: Rob Herring <[email protected]> Signed-off-by: Takashi Iwai <[email protected]>
niw · Dec 6, 2018 · 192a712 · 192a712
1 parent 917bb90
commit 192a712
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Showing 2 changed files with 22 additions and 14 deletions.
diff --git a/sound/aoa/soundbus/core.c b/sound/aoa/soundbus/core.c
@@ -74,7 +74,7 @@ static int soundbus_uevent(struct device *dev, struct kobj_uevent_env *env)
 	of = &soundbus_dev->ofdev;
 
 	/* stuff we want to pass to /sbin/hotplug */
-	retval = add_uevent_var(env, "OF_NAME=%s", of->dev.of_node->name);
+	retval = add_uevent_var(env, "OF_NAME=%pOFn", of->dev.of_node);
 	if (retval)
 		return retval;
 

diff --git a/sound/aoa/soundbus/sysfs.c b/sound/aoa/soundbus/sysfs.c
@@ -1,18 +1,10 @@
 // SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
+#include <linux/of.h>
 #include <linux/stat.h>
 /* FIX UP */
 #include "soundbus.h"
 
-#define soundbus_config_of_attr(field, format_string)			\
-static ssize_t								\
-field##_show (struct device *dev, struct device_attribute *attr,	\
-              char *buf)						\
-{									\
-	struct soundbus_dev *mdev = to_soundbus_device (dev);		\
-	return sprintf (buf, format_string, mdev->ofdev.dev.of_node->field); \
-}
-
 static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
 			     char *buf)
 {
@@ -25,17 +17,33 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
 		strcat(buf, "\n");
 		length = strlen(buf);
 	} else {
-		length = sprintf(buf, "of:N%sT%s\n",
-				 of->dev.of_node->name, of->dev.of_node->type);
+		length = sprintf(buf, "of:N%pOFn%c%s\n",
+				 of->dev.of_node, 'T',
+                                 of_node_get_device_type(of->dev.of_node));
 	}
 
 	return length;
 }
 static DEVICE_ATTR_RO(modalias);
 
-soundbus_config_of_attr (name, "%s\n");
+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 sprintf(buf, "%pOFn\n", of->dev.of_node);
+}
 static DEVICE_ATTR_RO(name);
-soundbus_config_of_attr (type, "%s\n");
+
+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 sprintf(buf, "%s\n", of_node_get_device_type(of->dev.of_node));
+}
 static DEVICE_ATTR_RO(type);
 
 struct attribute *soundbus_dev_attrs[] = {