[RFC PATCH] ASoC: wm_adsp: Change ADSPs to be mixer widgets rather the PGAs

[Charles Keepax <ckeepax@opensource.wolfsonmicro.com>]

PGAs often control the output from a chip and if the DSP is also marked
as a PGA it may be powered up after the output has been enabled. This
patch changes the ADSP2 cores to be marked as snd_soc_dapm_mixer widgets
so they are powered up before any PGAs.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
---

Hi,

Was also considering if it would be worth adding an
additional snd_soc_dapm_dsp id? That could sit between
mixers and pgas, but I can't really see any obvious issue
with treating the DSP as a mixer and it is a much simpler
change. Although I am open to writing the other change if it
is preferred?

Thanks,
Charles

 sound/soc/codecs/wm_adsp.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/sound/soc/codecs/wm_adsp.h b/sound/soc/codecs/wm_adsp.h
index d018dea..795a3b2 100644
--- a/sound/soc/codecs/wm_adsp.h
+++ b/sound/soc/codecs/wm_adsp.h
@@ -66,7 +66,7 @@ struct wm_adsp {
 		wm_adsp1_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD)
 
 #define WM_ADSP2(wname, num) \
-	SND_SOC_DAPM_PGA_E(wname, SND_SOC_NOPM, num, 0, NULL, 0, \
+	SND_SOC_DAPM_MIXER_E(wname, SND_SOC_NOPM, num, 0, NULL, 0, \
 		wm_adsp2_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD)
 
 extern const struct snd_kcontrol_new wm_adsp1_fw_controls[];
-- 
1.7.2.5