ASoC: Improve WM8994 digital power sequencing
On WM8994 revision D and earlier ensure optimal sequencing with
simultaneous usage of AIF1 and AIF2 by tying the signals together
so if paths through both are connected the streams are started
simultaneously.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Cc: stable@kernel.org
diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index 3e308ad..37b8aa8 100644
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -1584,6 +1584,13 @@
{ "Right Headphone Mux", "DAC", "DAC1R" },
};
+static const struct snd_soc_dapm_route wm8994_revd_intercon[] = {
+ { "AIF1DACDAT", NULL, "AIF2DACDAT" },
+ { "AIF2DACDAT", NULL, "AIF1DACDAT" },
+ { "AIF1ADCDAT", NULL, "AIF2ADCDAT" },
+ { "AIF2ADCDAT", NULL, "AIF1ADCDAT" },
+};
+
static const struct snd_soc_dapm_route wm8994_intercon[] = {
{ "AIF2DACL", NULL, "AIF2DAC Mux" },
{ "AIF2DACR", NULL, "AIF2DAC Mux" },
@@ -3135,6 +3142,11 @@
case WM8994:
snd_soc_dapm_add_routes(dapm, wm8994_intercon,
ARRAY_SIZE(wm8994_intercon));
+
+ if (wm8994->revision < 4)
+ snd_soc_dapm_add_routes(dapm, wm8994_revd_intercon,
+ ARRAY_SIZE(wm8994_revd_intercon));
+
break;
case WM8958:
snd_soc_dapm_add_routes(dapm, wm8958_intercon,