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drm/bridge: anx7625: Fill in empty ELD when no connector

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Speaker may share I2S with DP and .get_eld callback will be called when
speaker is playing. When HDMI wans't connected, the connector will be
null. Instead of return an error, fill in empty ELD.

Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Reviewed-by: Xin Ji <xji@analogixsemi.com>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220414090003.1806535-1-hsinyi@chromium.org
This commit is contained in:
Hsin-Yi Wang 2022-04-14 17:00:04 +08:00 committed by Robert Foss
parent c9b2d923be
commit 97f2c684f3
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GPG Key ID: 3EFD900F76D1D784
1 changed files with 6 additions and 6 deletions
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12
drivers/gpu/drm/bridge/analogix/anx7625.c
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@ -1932,14 +1932,14 @@ static int anx7625_audio_get_eld(struct device *dev, void *data,
struct anx7625_data *ctx = dev_get_drvdata(dev);
if (!ctx->connector) {
dev_err(dev, "connector not initial\n");
return -EINVAL;
/* Pass en empty ELD if connector not available */
memset(buf, 0, len);
} else {
dev_dbg(dev, "audio copy eld\n");
memcpy(buf, ctx->connector->eld,
min(sizeof(ctx->connector->eld), len));
}
dev_dbg(dev, "audio copy eld\n");
memcpy(buf, ctx->connector->eld,
min(sizeof(ctx->connector->eld), len));
return 0;
}