- Add input-gain-percent property (0..2000, default 100) to everest,es8311 binding
- Extend Es8311Config with input_gain_percent, Es8311Data with input_gain float
- Implement get_input_gain_multiplier() so audio-stream can apply digital boost on top of HW gain
- Change HW gain mapping 100% -> 42dB (was 24dB) to restore +30dB behavior remembered from pre audio-stream driver (ES8311 supports 0/6/12/18/24/30/36/42 per vendor)
- Validate percent <=2000 in start_device()
- Set ES3C28P (2.8" color) and ES3C35P (3.5" color) DTS to input-gain-percent = <100> (no extra digital, pure HW 42dB max, software volume can lower)
- Fixes quiet mic even at 100% and allows tunable digital boost via devicetree for boards with quiet MEMS capsules
Enable LVGL image cache 512KB + header cache 16 for PNG optimization.
Fixes PNG decode bottleneck by caching decoded images in PSRAM.
CONFIG_LV_CACHE_DEF_SIZE=524288
CONFIG_LV_IMAGE_HEADER_CACHE_DEF_CNT=16
On top of font size setting (d8c5a55f).
Removes need for 4KB PSRAM threshold experiment (CONFIG_SPIRAM_MALLOC_ALWAYSINTERNAL=4096) which is deleted.