ASoC: Mark cache as dirty when suspending

Since quite a few drivers are not managing to flag the cache as needing
to be resynced after suspend and it's a reasonable thing to do flag the
cache as needing sync automatically when suspending.

The expectation is that systems will mainly only keep the CODEC powered
when doing audio through the CODEC so we won't actually suspend the
device anyway; drivers which want to can override this behaviour when
they resume.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Cc: stable@kernel.org

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index e44267f662166b86bfbfe2e01f77283cb6ec4ac4..93109a4e2bc859275d9deeb80e7e843a283bce16 100644 (file)
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -577,6 +577,7 @@ int snd_soc_suspend(struct device *dev)
                        case SND_SOC_BIAS_OFF:
                                codec->driver->suspend(codec, PMSG_SUSPEND);
                                codec->suspended = 1;
+                               codec->cache_sync = 1;
                                break;
                        default:
                                dev_dbg(codec->dev, "CODEC is on over suspend\n");