ASoC: dapm: Bodge for lack of a widely available clk API

Reported-by: Stephen Rothwell <[e-mail]>
Signed-off-by: Mark Brown <[e-mail]>
Acked-by: Liam Girdwood <[e-mail]>

sound/soc/soc-dapm.c

···
 	if (!w->clk)
 		return -EIO;
 
+#ifdef CONFIG_HAVE_CLK
 	if (SND_SOC_DAPM_EVENT_ON(event)) {
 		return clk_enable(w->clk);
 	} else {
 		clk_disable(w->clk);
 		return 0;
 	}
+#endif
 }
 EXPORT_SYMBOL_GPL(dapm_clock_event);
 
···
 		}
 		break;
 	case snd_soc_dapm_clock_supply:
+#ifdef CONFIG_HAVE_CLK
 		w->clk = devm_clk_get(dapm->dev, w->name);
 		if (IS_ERR(w->clk)) {
 			ret = PTR_ERR(w->clk);
···
 				w->name, ret);
 			return NULL;
 		}
+#else
+		return NULL;
+#endif
 		break;
 	default:
 		break;