ASoC: Intel: boards: harden codec property handling

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In current ACPI-based devices, the DSDT does not include any of the
properties required by the codec driver. This is not an ACPI
limitation proper since the _DSD method could be used, as done for
Camera and SoundWire in newer platforms. For legacy devices, there is
unfortunately no other option than using a work-around: we add
properties to the codec device from the machine driver.

To avoid any issues with the codec driver being unbound, we need to
keep a reference to the codec device until the card is removed.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Co-developed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210813151116.23931-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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Pierre-Louis Bossart 2021-08-13 10:11:09 -05:00 • committed by Mark Brown

parent 772d44526e

commit c50f126b3c

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12

sound/soc/intel/boards/bytcht_es8316.c

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sound/soc/intel/boards/bytcr_rt5640.c

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sound/soc/intel/boards/bytcr_rt5651.c

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