ALSA: i2c: use snd_kcontrol_chip()

We can use snd_kcontrol_chip(). Let's use it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/87tt5xaudu.wl-kuninori.morimoto.gx@renesas.com

diff --git a/sound/i2c/other/pt2258.c b/sound/i2c/other/pt2258.c
index ba38c285241c08eec4abbe330c89e360ba8ad29e..0fbac827124b84f5adff211bc36c3ffc29ecb87e 100644 (file)
--- a/sound/i2c/other/pt2258.c
+++ b/sound/i2c/other/pt2258.c
@@ -80,7 +80,7 @@ static int pt2258_stereo_volume_info(struct snd_kcontrol *kcontrol,
 static int pt2258_stereo_volume_get(struct snd_kcontrol *kcontrol,
                                    struct snd_ctl_elem_value *ucontrol)
 {
-       struct snd_pt2258 *pt = kcontrol->private_data;
+       struct snd_pt2258 *pt = snd_kcontrol_chip(kcontrol);
        int base = kcontrol->private_value;
 
        /* chip does not support register reads */
@@ -92,7 +92,7 @@ static int pt2258_stereo_volume_get(struct snd_kcontrol *kcontrol,
 static int pt2258_stereo_volume_put(struct snd_kcontrol *kcontrol,
                                    struct snd_ctl_elem_value *ucontrol)
 {
-       struct snd_pt2258 *pt = kcontrol->private_data;
+       struct snd_pt2258 *pt = snd_kcontrol_chip(kcontrol);
        int base = kcontrol->private_value;
        unsigned char bytes[2];
        int val0, val1;
@@ -133,7 +133,7 @@ static int pt2258_stereo_volume_put(struct snd_kcontrol *kcontrol,
 static int pt2258_switch_get(struct snd_kcontrol *kcontrol,
                             struct snd_ctl_elem_value *ucontrol)
 {
-       struct snd_pt2258 *pt = kcontrol->private_data;
+       struct snd_pt2258 *pt = snd_kcontrol_chip(kcontrol);
 
        ucontrol->value.integer.value[0] = !pt->mute;
        return 0;
@@ -142,7 +142,7 @@ static int pt2258_switch_get(struct snd_kcontrol *kcontrol,
 static int pt2258_switch_put(struct snd_kcontrol *kcontrol,
                             struct snd_ctl_elem_value *ucontrol)
 {
-       struct snd_pt2258 *pt = kcontrol->private_data;
+       struct snd_pt2258 *pt = snd_kcontrol_chip(kcontrol);
        unsigned char bytes[2];
        int val;