Commit cf7b71f4 authored by Lars-Peter Clausen's avatar Lars-Peter Clausen Committed by Mark Brown

ASoC: ad1980: Replace goto loop with do-while loop

Using a proper do-while loop here instead of a open-coded goto loop is both
cleaner and shorter.

Also fixes the following warnings from smatch:
	sound/soc/codecs/ad1980.c:213 ad1980_reset() info: loop could be replaced with if statement.
	sound/soc/codecs/ad1980.c:212 ad1980_reset() info: ignoring unreachable code.
	sound/soc/codecs/ad1980.c:215 ad1980_reset() info: ignoring unreachable code.

While we are at it also change retry_cnt to unsigned int, using u16 for a
on-stack loop counter doesn't make that much sense.
Signed-off-by: default avatarLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: default avatarMark Brown <broonie@linaro.org>
parent c9eaa447
......@@ -189,28 +189,27 @@ static struct snd_soc_dai_driver ad1980_dai = {
static int ad1980_reset(struct snd_soc_codec *codec, int try_warm)
{
u16 retry_cnt = 0;
unsigned int retry_cnt = 0;
retry:
if (try_warm && soc_ac97_ops->warm_reset) {
soc_ac97_ops->warm_reset(codec->ac97);
if (ac97_read(codec, AC97_RESET) == 0x0090)
return 1;
}
soc_ac97_ops->reset(codec->ac97);
/* Set bit 16slot in register 74h, then every slot will has only 16
* bits. This command is sent out in 20bit mode, in which case the
* first nibble of data is eaten by the addr. (Tag is always 16 bit)*/
ac97_write(codec, AC97_AD_SERIAL_CFG, 0x9900);
if (ac97_read(codec, AC97_RESET) != 0x0090)
goto err;
return 0;
do {
if (try_warm && soc_ac97_ops->warm_reset) {
soc_ac97_ops->warm_reset(codec->ac97);
if (ac97_read(codec, AC97_RESET) == 0x0090)
return 1;
}
err:
while (retry_cnt++ < 10)
goto retry;
soc_ac97_ops->reset(codec->ac97);
/*
* Set bit 16slot in register 74h, then every slot will has only
* 16 bits. This command is sent out in 20bit mode, in which
* case the first nibble of data is eaten by the addr. (Tag is
* always 16 bit)
*/
ac97_write(codec, AC97_AD_SERIAL_CFG, 0x9900);
if (ac97_read(codec, AC97_RESET) == 0x0090)
return 0;
} while (retry_cnt++ < 10);
printk(KERN_ERR "AD1980 AC97 reset failed\n");
return -EIO;
......
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