For referring to a different object from sysfs ops, take hwdep private_data as stored via dev_set_drvdata() at creating the device object. In that way, the same sysfs ops can be used by different device types.
Signed-off-by: Takashi Iwai tiwai@suse.de --- sound/core/hwdep.c | 2 ++ sound/pci/hda/hda_hwdep.c | 45 +++++++++++++++------------------------------ 2 files changed, 17 insertions(+), 30 deletions(-)
diff --git a/sound/core/hwdep.c b/sound/core/hwdep.c index 99f7e8515ba1..825cd2847940 100644 --- a/sound/core/hwdep.c +++ b/sound/core/hwdep.c @@ -441,6 +441,8 @@ static int snd_hwdep_dev_register(struct snd_device *device) struct device *d = snd_get_device(SNDRV_DEVICE_TYPE_HWDEP, hwdep->card, hwdep->device); if (d) { + if (hwdep->private_data) + dev_set_drvdata(d, hwdep->private_data); err = sysfs_create_groups(&d->kobj, hwdep->groups); if (err < 0) dev_warn(card->dev, diff --git a/sound/pci/hda/hda_hwdep.c b/sound/pci/hda/hda_hwdep.c index 53eef6a01589..0fada0f8cfe8 100644 --- a/sound/pci/hda/hda_hwdep.c +++ b/sound/pci/hda/hda_hwdep.c @@ -163,8 +163,7 @@ static ssize_t power_on_acct_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct snd_hwdep *hwdep = dev_get_drvdata(dev); - struct hda_codec *codec = hwdep->private_data; + struct hda_codec *codec = dev_get_drvdata(dev); snd_hda_update_power_acct(codec); return sprintf(buf, "%u\n", jiffies_to_msecs(codec->power_on_acct)); } @@ -173,8 +172,7 @@ static ssize_t power_off_acct_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct snd_hwdep *hwdep = dev_get_drvdata(dev); - struct hda_codec *codec = hwdep->private_data; + struct hda_codec *codec = dev_get_drvdata(dev); snd_hda_update_power_acct(codec); return sprintf(buf, "%u\n", jiffies_to_msecs(codec->power_off_acct)); } @@ -251,8 +249,7 @@ static ssize_t type##_show(struct device *dev, \ struct device_attribute *attr, \ char *buf) \ { \ - struct snd_hwdep *hwdep = dev_get_drvdata(dev); \ - struct hda_codec *codec = hwdep->private_data; \ + struct hda_codec *codec = dev_get_drvdata(dev); \ return sprintf(buf, "0x%x\n", codec->type); \ }
@@ -261,8 +258,7 @@ static ssize_t type##_show(struct device *dev, \ struct device_attribute *attr, \ char *buf) \ { \ - struct snd_hwdep *hwdep = dev_get_drvdata(dev); \ - struct hda_codec *codec = hwdep->private_data; \ + struct hda_codec *codec = dev_get_drvdata(dev); \ return sprintf(buf, "%s\n", \ codec->type ? codec->type : ""); \ } @@ -281,8 +277,7 @@ static ssize_t type##_store(struct device *dev, \ struct device_attribute *attr, \ const char *buf, size_t count) \ { \ - struct snd_hwdep *hwdep = dev_get_drvdata(dev); \ - struct hda_codec *codec = hwdep->private_data; \ + struct hda_codec *codec = dev_get_drvdata(dev); \ unsigned long val; \ int err = kstrtoul(buf, 0, &val); \ if (err < 0) \ @@ -296,8 +291,7 @@ static ssize_t type##_store(struct device *dev, \ struct device_attribute *attr, \ const char *buf, size_t count) \ { \ - struct snd_hwdep *hwdep = dev_get_drvdata(dev); \ - struct hda_codec *codec = hwdep->private_data; \ + struct hda_codec *codec = dev_get_drvdata(dev); \ char *s = kstrndup_noeol(buf, 64); \ if (!s) \ return -ENOMEM; \ @@ -318,8 +312,7 @@ static ssize_t type##_store(struct device *dev, \ struct device_attribute *attr, \ const char *buf, size_t count) \ { \ - struct snd_hwdep *hwdep = dev_get_drvdata(dev); \ - struct hda_codec *codec = hwdep->private_data; \ + struct hda_codec *codec = dev_get_drvdata(dev); \ int err = 0; \ if (*buf) \ err = type##_codec(codec); \ @@ -333,8 +326,7 @@ static ssize_t init_verbs_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct snd_hwdep *hwdep = dev_get_drvdata(dev); - struct hda_codec *codec = hwdep->private_data; + struct hda_codec *codec = dev_get_drvdata(dev); int i, len = 0; mutex_lock(&codec->user_mutex); for (i = 0; i < codec->init_verbs.used; i++) { @@ -373,8 +365,7 @@ static ssize_t init_verbs_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct snd_hwdep *hwdep = dev_get_drvdata(dev); - struct hda_codec *codec = hwdep->private_data; + struct hda_codec *codec = dev_get_drvdata(dev); int err = parse_init_verbs(codec, buf); if (err < 0) return err; @@ -385,8 +376,7 @@ static ssize_t hints_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct snd_hwdep *hwdep = dev_get_drvdata(dev); - struct hda_codec *codec = hwdep->private_data; + struct hda_codec *codec = dev_get_drvdata(dev); int i, len = 0; mutex_lock(&codec->user_mutex); for (i = 0; i < codec->hints.used; i++) { @@ -480,8 +470,7 @@ static ssize_t hints_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct snd_hwdep *hwdep = dev_get_drvdata(dev); - struct hda_codec *codec = hwdep->private_data; + struct hda_codec *codec = dev_get_drvdata(dev); int err = parse_hints(codec, buf); if (err < 0) return err; @@ -507,8 +496,7 @@ static ssize_t init_pin_configs_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct snd_hwdep *hwdep = dev_get_drvdata(dev); - struct hda_codec *codec = hwdep->private_data; + struct hda_codec *codec = dev_get_drvdata(dev); return pin_configs_show(codec, &codec->init_pins, buf); }
@@ -516,8 +504,7 @@ static ssize_t user_pin_configs_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct snd_hwdep *hwdep = dev_get_drvdata(dev); - struct hda_codec *codec = hwdep->private_data; + struct hda_codec *codec = dev_get_drvdata(dev); return pin_configs_show(codec, &codec->user_pins, buf); }
@@ -525,8 +512,7 @@ static ssize_t driver_pin_configs_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct snd_hwdep *hwdep = dev_get_drvdata(dev); - struct hda_codec *codec = hwdep->private_data; + struct hda_codec *codec = dev_get_drvdata(dev); return pin_configs_show(codec, &codec->driver_pins, buf); }
@@ -550,8 +536,7 @@ static ssize_t user_pin_configs_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct snd_hwdep *hwdep = dev_get_drvdata(dev); - struct hda_codec *codec = hwdep->private_data; + struct hda_codec *codec = dev_get_drvdata(dev); int err = parse_user_pin_configs(codec, buf); if (err < 0) return err;