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| author | Charles Keepax <ckeepax@opensource.cirrus.com> | 2022-01-05 11:30:24 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-01-05 13:53:54 +0000 |
| commit | ba235634b138cd9d012dbe983e7920481211e132 (patch) | |
| tree | 46857a9ab3d2fec77916d70fe3f5685161e6ee30 /sound/soc/codecs/wm_adsp.h | |
| parent | 7aa1cc1091e0a424e9e7711ca381ebe98b6865bc (diff) | |
| download | linux-ba235634b138cd9d012dbe983e7920481211e132.tar.gz linux-ba235634b138cd9d012dbe983e7920481211e132.tar.bz2 linux-ba235634b138cd9d012dbe983e7920481211e132.zip | |
ASoC: wm_adsp: Add support for "toggle" preloaders
In the case a device can support retaining the firmware memory across
low power states it is useful for the preloader widget to only power up
whilst actually loading/unloading the core, as opposed to the normal
operation where the widget is powered for the entire time a firmware is
preloaded onto the core. Add support for this mode and a flag to enable
it.
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220105113026.18955-7-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/wm_adsp.h')
| -rw-r--r-- | sound/soc/codecs/wm_adsp.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/sound/soc/codecs/wm_adsp.h b/sound/soc/codecs/wm_adsp.h index 0e2f113bd342..7f4fabbc6ad3 100644 --- a/sound/soc/codecs/wm_adsp.h +++ b/sound/soc/codecs/wm_adsp.h @@ -41,6 +41,14 @@ struct wm_adsp { struct list_head compr_list; struct list_head buffer_list; + + /* + * Flag indicating the preloader widget only needs power toggled + * on state change rather than held on for the duration of the + * preload, useful for devices that can retain firmware memory + * across power down. + */ + bool toggle_preload; }; #define WM_ADSP1(wname, num) \ |