drivers: audio: dmic_nrfx_pdm: Add multi-instance PDM and support for prescaler #79177
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Added dedicated nrfx configuration files for nRF54L15 FP1, which differ from ENGA variant with inclusion of PDM. Updated NRFX version to 3.7 in configuratuon files to enable the use of new API. Signed-off-by: Michał Stasiak <[email protected]>
New PDM, some present on nRF54L15 FP1, instances have been added. Modified condfiguration file for nRF5340, which now requires PDM0 instance. Signed-off-by: Michał Stasiak <[email protected]>
Driver now uses multi-instance PDM nrfx API and defines PDM device based on available instances. It also introduces calculating PDM frequency using prescaler, present on nRF54L15 FP1. Signed-off-by: Michał Stasiak <[email protected]>
nRF54L15 FP1 can now be used in dmic audio sample. Signed-off-by: Michał Stasiak <[email protected]>
Signed-off-by: Michał Stasiak <[email protected]>
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New nRF targets include multiple instances of PDM peripheral. Thus, both nrfx and Zephyr drivers had to be adjusted to support it. Moreover, enumerated PDM frequency is replaced by prescaler value, which is used in functions responsible for finding suitable clock.
This PR also adds missing nrfx_config files for nRF54L15dk, which used pdk files. The only difference is inclusion of PDM20 and PDM21.
Added support for nRF54L15dk in audio dmic sample.
This PR can be merged after one updating nrfx to 3.7 - #78631