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authorCheng-Yi Chiang <cychiang@chromium.org>2019-07-17 16:33:23 +0800
committerMark Brown <broonie@kernel.org>2019-09-09 14:50:03 +0100
commit6fa5963c37a2e3335eba0b7455e35a01318ebc15 (patch)
treedb022d21562efc12856c2efa7b5a82f3e601560c /sound/soc
parentdfe58f2011595e7512bde9dffbd0abfc3a736ab7 (diff)
downloadlinux-6fa5963c37a2e3335eba0b7455e35a01318ebc15.tar.bz2
ASoC: hdmi-codec: Add an op to set callback function for plug event
Add an op in hdmi_codec_ops so codec driver can register callback function to handle plug event. Driver in DRM can use this callback function to report connector status. Signed-off-by: Cheng-Yi Chiang <cychiang@chromium.org> Link: https://lore.kernel.org/r/20190717083327.47646-2-cychiang@chromium.org Reviewed-by: Tzung-Bi Shih <tzungbi@google.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc')
-rw-r--r--sound/soc/codecs/hdmi-codec.c46
1 files changed, 46 insertions, 0 deletions
diff --git a/sound/soc/codecs/hdmi-codec.c b/sound/soc/codecs/hdmi-codec.c
index 0bf1c8cad108..b5fd8f08726e 100644
--- a/sound/soc/codecs/hdmi-codec.c
+++ b/sound/soc/codecs/hdmi-codec.c
@@ -7,6 +7,7 @@
#include <linux/module.h>
#include <linux/string.h>
#include <sound/core.h>
+#include <sound/jack.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
@@ -274,6 +275,8 @@ struct hdmi_codec_priv {
struct snd_pcm_chmap *chmap_info;
unsigned int chmap_idx;
struct mutex lock;
+ struct snd_soc_jack *jack;
+ unsigned int jack_status;
};
static const struct snd_soc_dapm_widget hdmi_widgets[] = {
@@ -663,6 +666,49 @@ static int hdmi_dai_probe(struct snd_soc_dai *dai)
return 0;
}
+static void hdmi_codec_jack_report(struct hdmi_codec_priv *hcp,
+ unsigned int jack_status)
+{
+ if (hcp->jack && jack_status != hcp->jack_status) {
+ snd_soc_jack_report(hcp->jack, jack_status, SND_JACK_LINEOUT);
+ hcp->jack_status = jack_status;
+ }
+}
+
+static void plugged_cb(struct device *dev, bool plugged)
+{
+ struct hdmi_codec_priv *hcp = dev_get_drvdata(dev);
+
+ if (plugged)
+ hdmi_codec_jack_report(hcp, SND_JACK_LINEOUT);
+ else
+ hdmi_codec_jack_report(hcp, 0);
+}
+
+/**
+ * hdmi_codec_set_jack_detect - register HDMI plugged callback
+ * @component: the hdmi-codec instance
+ * @jack: ASoC jack to report (dis)connection events on
+ */
+int hdmi_codec_set_jack_detect(struct snd_soc_component *component,
+ struct snd_soc_jack *jack)
+{
+ struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component);
+ int ret = -EOPNOTSUPP;
+
+ if (hcp->hcd.ops->hook_plugged_cb) {
+ hcp->jack = jack;
+ ret = hcp->hcd.ops->hook_plugged_cb(component->dev->parent,
+ hcp->hcd.data,
+ plugged_cb,
+ component->dev);
+ if (ret)
+ hcp->jack = NULL;
+ }
+ return ret;
+}
+EXPORT_SYMBOL_GPL(hdmi_codec_set_jack_detect);
+
static int hdmi_dai_spdif_probe(struct snd_soc_dai *dai)
{
struct hdmi_codec_daifmt *cf = dai->playback_dma_data;