ASoC: core - Add platform widget IO
Allow platform driver widgets to perform any IO required for DAPM.
Signed-off-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index ceb2ba4..54fa2e5 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -128,14 +128,22 @@
{
if (w->codec)
return snd_soc_read(w->codec, reg);
- return 0;
+ else if (w->platform)
+ return snd_soc_platform_read(w->platform, reg);
+
+ dev_err(w->dapm->dev, "no valid widget read method\n");
+ return -1;
}
static int soc_widget_write(struct snd_soc_dapm_widget *w, int reg, int val)
{
if (w->codec)
return snd_soc_write(w->codec, reg, val);
- return 0;
+ else if (w->platform)
+ return snd_soc_platform_write(w->platform, reg, val);
+
+ dev_err(w->dapm->dev, "no valid widget write method\n");
+ return -1;
}
static int soc_widget_update_bits(struct snd_soc_dapm_widget *w,
@@ -2495,6 +2503,7 @@
dapm->n_widgets++;
w->dapm = dapm;
w->codec = dapm->codec;
+ w->platform = dapm->platform;
INIT_LIST_HEAD(&w->sources);
INIT_LIST_HEAD(&w->sinks);
INIT_LIST_HEAD(&w->list);