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ALSA: aoa: Remove direct OF name and type accesses

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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 <robh@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Rob Herring 2018-12-05 13:50:48 -06:00 committed by Takashi Iwai
parent 917bb90c65
commit 192a712295
2 changed files with 22 additions and 14 deletions
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2
sound/aoa/soundbus/core.c
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@ -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;

34
sound/aoa/soundbus/sysfs.c
View File

@ -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[] = {