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ASoC: hdmi-codec: Get ELD in before reporting plugged event

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In plugged callback, ELD should be updated from display driver so that
user space can query information from ELD immediately after receiving jack
plugged event.

When jack is unplugged, clear ELD buffer so that user space does not get
obsolete information of unplugged HDMI.

Signed-off-by: Cheng-Yi Chiang <cychiang@chromium.org>
Link: https://lore.kernel.org/r/20201118043852.1338877-1-cychiang@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Cheng-Yi Chiang 2020-11-18 12:38:52 +08:00 committed by Mark Brown
parent 3371c6f9f4
commit 25ce4f2b35
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GPG key ID: 24D68B725D5487D0
1 changed files with 8 additions and 2 deletions
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10
sound/soc/codecs/hdmi-codec.c
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@ -692,10 +692,16 @@ static void plugged_cb(struct device *dev, bool plugged)
{
struct hdmi_codec_priv *hcp = dev_get_drvdata(dev);
if (plugged)
if (plugged) {
if (hcp->hcd.ops->get_eld) {
hcp->hcd.ops->get_eld(dev->parent, hcp->hcd.data,
hcp->eld, sizeof(hcp->eld));
}
hdmi_codec_jack_report(hcp, SND_JACK_LINEOUT);
else
} else {
hdmi_codec_jack_report(hcp, 0);
memset(hcp->eld, 0, sizeof(hcp->eld));
}
}
static int hdmi_codec_set_jack(struct snd_soc_component *component,