mb/google/eve: rt5514: Add 16ms delay on dmic init
Add a 16ms delay to DMIC init by the kernel driver in order to prevent an audible 'pop' noise when starting to record. BUG=b:63413023 TEST=manual testing to ensure this device property is present in SSDT: Name (_DSD, Package () { ToUUID ("daffd814-6eba-4d8c-8a91-bc9bbf4aa301") Package () { Package () { "realtek,dmic-init-delay", 0x10 } } }) Change-Id: If9160ce6992153ba49719029de336595bbf4ae72 Signed-off-by: Duncan Laurie <dlaurie@google.com> Reviewed-on: https://review.coreboot.org/21271 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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@ -300,6 +300,11 @@ chip soc/intel/skylake
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register "hid" = ""10EC5514""
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register "name" = ""RT54""
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register "desc" = ""Realtek RT5514""
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register "property_count" = "1"
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# Set the DMIC initial delay to 16ms to avoid pop noise
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register "property_list[0].type" = "ACPI_DP_TYPE_INTEGER"
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register "property_list[0].name" = ""realtek,dmic-init-delay""
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register "property_list[0].integer" = "16"
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device i2c 57 on end
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end
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end # I2C #4
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