ASoC: Add SND_SOC_DAPM_PRE_POST_PMD event

Some systems codecs need to configure some registers before and after
powering down some of their part. As a convenience add a macro for that.
Signed-off-by: NArnaud Patard <apatard@mandriva.com>
Acked-by: NLiam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

include/sound/soc-dapm.h

@@ -273,6 +273,8 @@
 #define SND_SOC_DAPM_POST_PMD	0x8		/* after widget power down */
 #define SND_SOC_DAPM_PRE_REG	0x10	/* before audio path setup */
 #define SND_SOC_DAPM_POST_REG	0x20	/* after audio path setup */
+#define SND_SOC_DAPM_PRE_POST_PMD \
+				(SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD)
 
 /* convenience event type detection */
 #define SND_SOC_DAPM_EVENT_ON(e)	\