Attachment 138514 Details for Bug 105848 – Patch 3

[patch] Patch 3

0001-ASoC-hdac_hdmi-Sync-sampling-rate-to-set-N-and-CTS-M.patch (text/plain), 1.89 KB, created by Sriram Periyasamy on 2018-04-03 13:29:51 UTC

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Creator: Sriram Periyasamy

Created: 2018-04-03 13:29:51 UTC

Size: 1.89 KB

patch

obsolete

>From a21fdd8d21842d55e955d0b2125942c94fb4df59 Mon Sep 17 00:00:00 2001
>From: Sriram Periyasamy <sriramx.periyasamy@intel.com>
>Date: Tue, 3 Apr 2018 18:43:29 +0530
>Subject: [PATCH] ASoC: hdac_hdmi: Sync sampling rate to set N and CTS/M
> manually
>
>Sync the sampling rate of the codec with i915 audio component to
>set the N and CTS/M manually in i915 pipe.
>
>Signed-off-by: Sriram Periyasamy <sriramx.periyasamy@intel.com>
>Signed-off-by: Sanyog Kale <sanyog.r.kale@intel.com>
>---
> sound/soc/codecs/hdac_hdmi.c | 25 +++++++++++++++++++++++++
> 1 file changed, 25 insertions(+)
>
>diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c
>index 21012889853f..749db94db6d6 100644
>--- a/sound/soc/codecs/hdac_hdmi.c
>+++ b/sound/soc/codecs/hdac_hdmi.c
>@@ -451,6 +451,30 @@ static int hdac_hdmi_set_tdm_slot(struct snd_soc_dai *dai,
> 	return 0;
> }
> 
>+static int hdac_hdmi_prepare(struct snd_pcm_substream *substream,
>+		struct snd_soc_dai *dai)
>+{
>+	struct hdac_ext_device *edev = snd_soc_dai_get_drvdata(dai);
>+	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(&edev->hdev);
>+	struct hdac_hdmi_port *port;
>+
>+	port = hdmi->dai_map[dai->id].port;
>+
>+	if (!port)
>+		return -ENODEV;
>+
>+	if ((!port->eld.monitor_present) || (!port->eld.eld_valid)) {
>+		dev_err(&edev->hdev.dev,
>+			"device is not configured for this pin:port%d:%d\n",
>+					port->pin->nid, port->id);
>+		return -ENODEV;
>+	}
>+
>+	/* Update the rate to set N and CTS/M manually */
>+	return snd_hdac_sync_audio_rate(&edev->hdev, port->pin->nid, port->id,
>+					 substream->runtime->rate);
>+}
>+
> static int hdac_hdmi_set_hw_params(struct snd_pcm_substream *substream,
> 	struct snd_pcm_hw_params *hparams, struct snd_soc_dai *dai)
> {
>@@ -1389,6 +1413,7 @@ static const struct snd_soc_dai_ops hdmi_dai_ops = {
> 	.shutdown = hdac_hdmi_pcm_close,
> 	.hw_params = hdac_hdmi_set_hw_params,
> 	.set_tdm_slot = hdac_hdmi_set_tdm_slot,
>+	.prepare = hdac_hdmi_prepare,
> };
> 
> /*
>-- 
>2.7.4
>

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Attachments on bug 105848: 138493 | 138494 | 138495 | 138496 | 138497 | 138498 | 138514

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