Unverified Commit 25ce4f2b authored Nov 18, 2020 by Cheng-Yi Chiang Committed by Mark Brown Nov 23, 2020

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



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>

parent 3371c6f9

sound/soc/codecs/hdmi-codec.c

+8 −2

Original line number	Diff line number	Diff line
		@@ -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,

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