diff options
| author | Arun Shamanna Lakshmi <aruns@nvidia.com> | 2014-01-14 15:31:54 -0800 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2014-01-15 11:43:27 +0000 |
| commit | f7d3c17096f6cbca8f0113d5a092ffcc72c7bf41 (patch) | |
| tree | da50751d488fa4a6d280111622066c7bbaffa16d /sound | |
| parent | b893ea5f1cd1adbbd7e0794d16d47bbb46f80733 (diff) | |
ASoC: dapm: Change prototype of soc_widget_read
soc_widget_read API returns the register data and it is possible
that a register can contain 0xffffffff. Thus, change the prototype
of soc_widget_read to return only the error code and pass the reg
data through pointer argument.
Signed-off-by: Arun Shamanna Lakshmi <aruns@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/soc-dapm.c | 26 |
1 files changed, 15 insertions, 11 deletions
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 51b4c192f41a..2a44fe9122a2 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -371,12 +371,16 @@ static void dapm_reset(struct snd_soc_card *card) } } -static int soc_widget_read(struct snd_soc_dapm_widget *w, int reg) +static int soc_widget_read(struct snd_soc_dapm_widget *w, int reg, + unsigned int *value) { - if (w->codec) - return snd_soc_read(w->codec, reg); - else if (w->platform) - return snd_soc_platform_read(w->platform, reg); + if (w->codec) { + *value = snd_soc_read(w->codec, reg); + return 0; + } else if (w->platform) { + *value = snd_soc_platform_read(w->platform, reg); + return 0; + } dev_err(w->dapm->dev, "ASoC: no valid widget read method\n"); return -1; @@ -430,13 +434,12 @@ static int soc_widget_update_bits_locked(struct snd_soc_dapm_widget *w, return ret; } else { soc_widget_lock(w); - ret = soc_widget_read(w, reg); + ret = soc_widget_read(w, reg, &old); if (ret < 0) { soc_widget_unlock(w); return ret; } - old = ret; new = (old & ~mask) | (value & mask); change = old != new; if (change) { @@ -513,7 +516,7 @@ static void dapm_set_path_status(struct snd_soc_dapm_widget *w, unsigned int invert = mc->invert; if (reg != SND_SOC_NOPM) { - val = soc_widget_read(w, reg); + soc_widget_read(w, reg, &val); val = (val >> shift) & mask; if (invert) val = max - val; @@ -529,7 +532,7 @@ static void dapm_set_path_status(struct snd_soc_dapm_widget *w, w->kcontrol_news[i].private_value; int val, item; - val = soc_widget_read(w, e->reg); + soc_widget_read(w, e->reg, &val); item = (val >> e->shift_l) & e->mask; if (item < e->max && !strcmp(p->name, e->texts[item])) @@ -558,7 +561,7 @@ static void dapm_set_path_status(struct snd_soc_dapm_widget *w, w->kcontrol_news[i].private_value; int val, item; - val = soc_widget_read(w, e->reg); + soc_widget_read(w, e->reg, &val); val = (val >> e->shift_l) & e->mask; for (item = 0; item < e->max; item++) { if (val == e->values[item]) @@ -2782,7 +2785,8 @@ int snd_soc_dapm_new_widgets(struct snd_soc_card *card) /* Read the initial power state from the device */ if (w->reg >= 0) { - val = soc_widget_read(w, w->reg) >> w->shift; + soc_widget_read(w, w->reg, &val); + val = val >> w->shift; val &= w->mask; if (val == w->on_val) w->power = 1; |