ASoC: sgtl5000: Replace w->codec snd_soc_dapm_to_codec(w->dapm)

The codec field of the snd_soc_widget struct is eventually going to be
removed, use snd_soc_dapm_to_codec(w->dapm) instead.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/sgtl5000.c

@@ -155,18 +155,19 @@ struct sgtl5000_priv {
 static int mic_bias_event(struct snd_soc_dapm_widget *w,
 	struct snd_kcontrol *kcontrol, int event)
 {
-	struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(w->codec);
+	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
+	struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec);
 
 	switch (event) {
 	case SND_SOC_DAPM_POST_PMU:
 		/* change mic bias resistor */
-		snd_soc_update_bits(w->codec, SGTL5000_CHIP_MIC_CTRL,
+		snd_soc_update_bits(codec, SGTL5000_CHIP_MIC_CTRL,
 			SGTL5000_BIAS_R_MASK,
 			sgtl5000->micbias_resistor << SGTL5000_BIAS_R_SHIFT);
 		break;
 
 	case SND_SOC_DAPM_PRE_PMD:
-		snd_soc_update_bits(w->codec, SGTL5000_CHIP_MIC_CTRL,
+		snd_soc_update_bits(codec, SGTL5000_CHIP_MIC_CTRL,
 				SGTL5000_BIAS_R_MASK, 0);
 		break;
 	}
@@ -181,11 +182,12 @@ static int mic_bias_event(struct snd_soc_dapm_widget *w,
 static int power_vag_event(struct snd_soc_dapm_widget *w,
 	struct snd_kcontrol *kcontrol, int event)
 {
+	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
 	const u32 mask = SGTL5000_DAC_POWERUP | SGTL5000_ADC_POWERUP;
 
 	switch (event) {
 	case SND_SOC_DAPM_POST_PMU:
-		snd_soc_update_bits(w->codec, SGTL5000_CHIP_ANA_POWER,
+		snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER,
 			SGTL5000_VAG_POWERUP, SGTL5000_VAG_POWERUP);
 		break;
 
@@ -195,9 +197,9 @@ static int power_vag_event(struct snd_soc_dapm_widget *w,
 		 * operational to prevent inadvertently starving the
 		 * other one of them.
 		 */
-		if ((snd_soc_read(w->codec, SGTL5000_CHIP_ANA_POWER) &
+		if ((snd_soc_read(codec, SGTL5000_CHIP_ANA_POWER) &
 				mask) != mask) {
-			snd_soc_update_bits(w->codec, SGTL5000_CHIP_ANA_POWER,
+			snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER,
 				SGTL5000_VAG_POWERUP, 0);
 			msleep(400);
 		}