ASoC: tegra: remove open-coded clk reference counting

clk_enable/disable() already reference count the enable calls, so there's
no need for the callers to do the same.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/tegra/tegra_spdif.c b/sound/soc/tegra/tegra_spdif.c
index cd836cb..3426633 100644
--- a/sound/soc/tegra/tegra_spdif.c
+++ b/sound/soc/tegra/tegra_spdif.c
@@ -196,18 +196,14 @@
 	case SNDRV_PCM_TRIGGER_START:
 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 	case SNDRV_PCM_TRIGGER_RESUME:
-		if (!spdif->clk_refs)
-			clk_enable(spdif->clk_spdif_out);
-		spdif->clk_refs++;
+		clk_enable(spdif->clk_spdif_out);
 		tegra_spdif_start_playback(spdif);
 		break;
 	case SNDRV_PCM_TRIGGER_STOP:
 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 	case SNDRV_PCM_TRIGGER_SUSPEND:
 		tegra_spdif_stop_playback(spdif);
-		spdif->clk_refs--;
-		if (!spdif->clk_refs)
-			clk_disable(spdif->clk_spdif_out);
+		clk_disable(spdif->clk_spdif_out);
 		break;
 	default:
 		return -EINVAL;