The core has for a long time had support for marking the register maps of devices dirty when suspending so that they are resynced on resume. Also implement this feature for CODECs using regmap.
Signed-off-by: Mark Brown broonie@opensource.wolfsonmicro.com --- sound/soc/soc-core.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 0c7e477..b94ce32 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -635,6 +635,8 @@ int snd_soc_suspend(struct device *dev) codec->driver->suspend(codec); codec->suspended = 1; codec->cache_sync = 1; + if (codec->using_regmap) + regcache_mark_dirty(codec->control_data); break; default: dev_dbg(codec->dev, "CODEC is on over suspend\n");