ASoC: Consolidate use of controls with custom get/put function

Use the macros for controls require custom get/put function.
This is to make sure that the soc_mixer_control is used
consistently among the drivers.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Cc: Arun KS <arunks@mistralsolutions.com>
Cc: Misael Lopez Cruz <misael.lopez@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/codecs/wm_hubs.c b/sound/soc/codecs/wm_hubs.c
index ca8ce03..f3583a5 100644
--- a/sound/soc/codecs/wm_hubs.c
+++ b/sound/soc/codecs/wm_hubs.c
@@ -362,19 +362,11 @@
 SOC_ENUM("Speaker Reference", speaker_ref),
 SOC_ENUM("Speaker Mode", speaker_mode),
 
-{
-	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = "Headphone Volume",
-	.access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |
-		 SNDRV_CTL_ELEM_ACCESS_READWRITE,
-	.tlv.p = outpga_tlv,
-	.info = snd_soc_info_volsw_2r,
-	.get = snd_soc_get_volsw_2r, .put = wm8993_put_dc_servo,
-	.private_value = (unsigned long)&(struct soc_mixer_control) {
-		.reg = WM8993_LEFT_OUTPUT_VOLUME,
-		.rreg = WM8993_RIGHT_OUTPUT_VOLUME,
-		.shift = 0, .max = 63
-	},
-},
+SOC_DOUBLE_R_EXT_TLV("Headphone Volume",
+		     WM8993_LEFT_OUTPUT_VOLUME, WM8993_RIGHT_OUTPUT_VOLUME,
+		     0, 63, 0, snd_soc_get_volsw_2r, wm8993_put_dc_servo,
+		     outpga_tlv),
+
 SOC_DOUBLE_R("Headphone Switch", WM8993_LEFT_OUTPUT_VOLUME,
 	     WM8993_RIGHT_OUTPUT_VOLUME, 6, 1, 0),
 SOC_DOUBLE_R("Headphone ZC Switch", WM8993_LEFT_OUTPUT_VOLUME,