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From: Jerome Brunet <jbrunet@baylibre.com>
To: Mark Brown <broonie@kernel.org>,
	Liam Girdwood <lgirdwood@gmail.com>,
	Kevin Hilman <khilman@baylibre.com>
Cc: devicetree@vger.kernel.org, alsa-devel@alsa-project.org,
	linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org,
	Jerome Brunet <jbrunet@baylibre.com>
Subject: [PATCH 4/5] ASoC: meson: axg-card: add basic codec-to-codec link support
Date: Wed, 15 May 2019 15:18:57 +0200
Message-ID: <20190515131858.32130-5-jbrunet@baylibre.com> (raw)
In-Reply-To: <20190515131858.32130-1-jbrunet@baylibre.com>

Add basic support for codec-to-codec link in the axg sound card.
The cpu side of these links is expected to properly set the hw_params
and format of the link.

ATM, only the tohdmitx glue is supported but others (like the
internal DAC glue) should follow.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
---
 sound/soc/meson/axg-card.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/sound/soc/meson/axg-card.c b/sound/soc/meson/axg-card.c
index 5c8deee8d512..db0a7fc18928 100644
--- a/sound/soc/meson/axg-card.c
+++ b/sound/soc/meson/axg-card.c
@@ -29,6 +29,18 @@ struct axg_dai_link_tdm_data {
 	struct axg_dai_link_tdm_mask *codec_masks;
 };
 
+/*
+ * Base params for the codec to codec links
+ * Those will be over-written by the CPU side of the link
+ */
+static const struct snd_soc_pcm_stream codec_params = {
+	.formats = SNDRV_PCM_FMTBIT_S24_LE,
+	.rate_min = 5525,
+	.rate_max = 192000,
+	.channels_min = 1,
+	.channels_max = 8,
+};
+
 #define PREFIX "amlogic,"
 
 static int axg_card_reallocate_links(struct axg_card *priv,
@@ -517,6 +529,11 @@ static int axg_card_cpu_is_tdm_iface(struct device_node *np)
 	return of_device_is_compatible(np, PREFIX "axg-tdm-iface");
 }
 
+static int axg_card_cpu_is_codec(struct device_node *np)
+{
+	return of_device_is_compatible(np, PREFIX "g12a-tohdmitx");
+}
+
 static int axg_card_add_link(struct snd_soc_card *card, struct device_node *np,
 			     int *index)
 {
@@ -540,6 +557,8 @@ static int axg_card_add_link(struct snd_soc_card *card, struct device_node *np,
 
 	if (axg_card_cpu_is_tdm_iface(dai_link->cpu_of_node))
 		ret = axg_card_parse_tdm(card, np, index);
+	else if (axg_card_cpu_is_codec(dai_link->cpu_of_node))
+		dai_link->params = &codec_params;
 
 	return ret;
 }
-- 
2.20.1


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  parent reply index

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-15 13:18 [PATCH 0/5] ASoC: meson: add hdmitx glue support Jerome Brunet
2019-05-15 13:18 ` [PATCH 1/5] ASoC: meson: axg-card: set link name based on link node name Jerome Brunet
2019-05-16 11:13   ` Applied "ASoC: meson: axg-card: set link name based on link node name" to the asoc tree Mark Brown
2019-05-15 13:18 ` [PATCH 2/5] ASoC: dapm: allow muxes to force a disconnect Jerome Brunet
2019-05-16 11:13   ` Applied "ASoC: dapm: allow muxes to force a disconnect" to the asoc tree Mark Brown
2019-05-15 13:18 ` [PATCH 3/5] ASoC: meson: add tohdmitx DT bindings Jerome Brunet
2019-05-16 11:13   ` Applied "ASoC: meson: add tohdmitx DT bindings" to the asoc tree Mark Brown
2019-05-15 13:18 ` Jerome Brunet [this message]
2019-05-16 11:13   ` Applied "ASoC: meson: axg-card: add basic codec-to-codec link support" " Mark Brown
2019-05-15 13:18 ` [PATCH 5/5] ASoC: meson: add g12a tohdmitx control Jerome Brunet
2019-05-16 11:13   ` Applied "ASoC: meson: add g12a tohdmitx control" to the asoc tree Mark Brown
2019-05-15 13:32 ` [PATCH 0/5] ASoC: meson: add hdmitx glue support Neil Armstrong
2019-05-15 18:33 ` Kevin Hilman

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