From f998f257c92216df314610dd5aebc5f5d23e6ec0 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Thu, 15 Sep 2011 10:52:11 +0100 Subject: [PATCH] ASoC: Fix WM8996 DC servo operation without IRQ We need to count the timeout down. Reported-by: Axel Lin Signed-off-by: Mark Brown Acked-by: Liam Girdwood --- sound/soc/codecs/wm8996.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/sound/soc/codecs/wm8996.c b/sound/soc/codecs/wm8996.c index 7280a10d5fe7..5174874a5f7b 100644 --- a/sound/soc/codecs/wm8996.c +++ b/sound/soc/codecs/wm8996.c @@ -719,7 +719,7 @@ static void wait_for_dc_servo(struct snd_soc_codec *codec, u16 mask) { struct i2c_client *i2c = to_i2c_client(codec->dev); struct wm8996_priv *wm8996 = snd_soc_codec_get_drvdata(codec); - int i, ret; + int ret; unsigned long timeout = 200; snd_soc_write(codec, WM8996_DC_SERVO_2, mask); @@ -734,15 +734,12 @@ static void wait_for_dc_servo(struct snd_soc_codec *codec, u16 mask) } else { msleep(1); - if (--i) { - timeout = 0; - break; - } + timeout--; } ret = snd_soc_read(codec, WM8996_DC_SERVO_2); dev_dbg(codec->dev, "DC servo state: %x\n", ret); - } while (ret & mask); + } while (timeout && ret & mask); if (timeout == 0) dev_err(codec->dev, "DC servo timed out for %x\n", mask);