ASoC: tegra: Replace instances of rtd->codec->card with rtd->card

No need to go via the CODEC to get a pointer to the card. This will help to
eventually remove the card field from the snd_soc_codec struct.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/sound/soc/tegra/tegra_rt5640.c b/sound/soc/tegra/tegra_rt5640.c
index 4feb16a..a689883 100644
--- a/sound/soc/tegra/tegra_rt5640.c
+++ b/sound/soc/tegra/tegra_rt5640.c
@@ -51,8 +51,7 @@
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_dai *codec_dai = rtd->codec_dai;
-	struct snd_soc_codec *codec = codec_dai->codec;
-	struct snd_soc_card *card = codec->card;
+	struct snd_soc_card *card = rtd->card;
 	struct tegra_rt5640 *machine = snd_soc_card_get_drvdata(card);
 	int srate, mclk;
 	int err;
@@ -110,7 +109,7 @@
 {
 	struct snd_soc_dai *codec_dai = rtd->codec_dai;
 	struct snd_soc_codec *codec = codec_dai->codec;
-	struct tegra_rt5640 *machine = snd_soc_card_get_drvdata(codec->card);
+	struct tegra_rt5640 *machine = snd_soc_card_get_drvdata(rtd->card);
 
 	snd_soc_jack_new(codec, "Headphones", SND_JACK_HEADPHONE,
 			 &tegra_rt5640_hp_jack);