ASoC: Bail out of wm_hubs DC servo if calibration fails
We're keeping track of the number of times we've iterated but never
actually using this to bail out if the chip looks stuck.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
diff --git a/sound/soc/codecs/wm_hubs.c b/sound/soc/codecs/wm_hubs.c
index 0ad9f5d..486bdd2 100644
--- a/sound/soc/codecs/wm_hubs.c
+++ b/sound/soc/codecs/wm_hubs.c
@@ -74,7 +74,7 @@
msleep(1);
reg = snd_soc_read(codec, WM8993_DC_SERVO_READBACK_0);
dev_dbg(codec->dev, "DC servo: %x\n", reg);
- } while (reg & WM8993_DCS_DATAPATH_BUSY);
+ } while (reg & WM8993_DCS_DATAPATH_BUSY && count < 400);
if (reg & WM8993_DCS_DATAPATH_BUSY)
dev_err(codec->dev, "Timed out waiting for DC Servo\n");