ASoC: max98090: Fix digital microphone

Commit e409dfbfccf9 ("ASoC: dapm: Add a few supply widget sanity checks")
broke digital microphone support in max98090.c:

max98090 i2c-193C9890:00: Conditional paths are not supported for supply widgets (DMICL_ENA -> [DMIC] -> DMIC Mux)
max98090 i2c-193C9890:00: ASoC: no dapm match for DMICL_ENA --> DMIC --> DMIC Mux
max98090 i2c-193C9890:00: ASoC: Failed to add route DMICL_ENA -> DMIC -> DMIC Mux
max98090 i2c-193C9890:00: Conditional paths are not supported for supply widgets (DMICR_ENA -> [DMIC] -> DMIC Mux)
max98090 i2c-193C9890:00: ASoC: no dapm match for DMICR_ENA --> DMIC --> DMIC Mux
max98090 i2c-193C9890:00: ASoC: Failed to add route DMICR_ENA -> DMIC -> DMIC Mux

Problem is partially caused by commit f69e3caa9e18 ("ASoC: max98090: Enable
both DMIC channels also when using mono configuration") which connects
"DMICL_ENA" and "DMICR_ENA" supply widgets to "DMIC Mux".

Fix the breakage by reverting f69e3caa9e18 and then by adding additional
"DMICR_ENA" to "DMICL" and "DMICL_ENA" to "DMICR" cross-connections. This
disconnects these supply widgets from the mux and makes sure that both DMIC
data channels are still enabled together.

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 4 insertions, 2 deletions

diff --git a/sound/soc/codecs/max98090.c b/sound/soc/codecs/max98090.c
index 1229554f1464..994d02c1fb69 100644
--- a/sound/soc/codecs/max98090.c
+++ b/sound/soc/codecs/max98090.c
@@ -1311,6 +1311,10 @@ static const struct snd_soc_dapm_route max98090_dapm_routes[] = {
         {"MIC1 Input", NULL, "MIC1"},
         {"MIC2 Input", NULL, "MIC2"},
 
+        {"DMICL", NULL, "DMICL_ENA"},
+        {"DMICL", NULL, "DMICR_ENA"},
+        {"DMICR", NULL, "DMICL_ENA"},
+        {"DMICR", NULL, "DMICR_ENA"},
         {"DMICL", NULL, "AHPF"},
         {"DMICR", NULL, "AHPF"},
 
@@ -1368,8 +1372,6 @@ static const struct snd_soc_dapm_route max98090_dapm_routes[] = {
         {"DMIC Mux", "ADC", "ADCR"},
         {"DMIC Mux", "DMIC", "DMICL"},
         {"DMIC Mux", "DMIC", "DMICR"},
-        {"DMIC Mux", "DMIC", "DMICL_ENA"},
-        {"DMIC Mux", "DMIC", "DMICR_ENA"},
 
         {"LBENL Mux", "Normal", "DMIC Mux"},
         {"LBENL Mux", "Loopback", "LTENL Mux"},