linux-kernel - [PATCH 5/8] media: adv748x: add an ASoC DAI definition to the driver

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Message-ID: <20200113141538.GF3606@pflmari>
Date:   Mon, 13 Jan 2020 15:15:38 +0100
From:   Alex Riesen <alexander.riesen@...itec.com>
To:     Kieran Bingham <kieran.bingham@...asonboard.com>
CC:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Rob Herring <robh+dt@...nel.org>,
        "Mark Rutland" <mark.rutland@....com>,
        <devel@...verdev.osuosl.org>, <linux-media@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-renesas-soc@...r.kernel.org>
Subject: [PATCH 5/8] media: adv748x: add an ASoC DAI definition to the driver

The definition is used to publish hardware constraints and can be used
to implement in-demand device configuration.

Signed-off-by: Alexander Riesen <alexander.riesen@...itec.com>
---
 drivers/media/i2c/adv748x/adv748x-core.c | 33 ++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/drivers/media/i2c/adv748x/adv748x-core.c b/drivers/media/i2c/adv748x/adv748x-core.c
index b6067ffb1e0d..75e4bf144ad7 100644
--- a/drivers/media/i2c/adv748x/adv748x-core.c
+++ b/drivers/media/i2c/adv748x/adv748x-core.c
@@ -25,6 +25,7 @@
 #include <media/v4l2-dv-timings.h>
 #include <media/v4l2-fwnode.h>
 #include <media/v4l2-ioctl.h>
+#include <sound/soc.h>
 
 #include "adv748x.h"
 
@@ -689,6 +690,30 @@ static void adv748x_dt_cleanup(struct adv748x_state *state)
 		of_node_put(state->endpoints[i]);
 }
 
+static struct snd_soc_dai_driver adv748x_dai = {
+	.name = "adv748x-i2s",
+	.capture = {
+		.stream_name	= "Capture",
+		.channels_min	= 8,
+		.channels_max	= 8,
+		.rates = SNDRV_PCM_RATE_48000,
+		.formats = SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_U24_LE,
+	 },
+};
+
+static	int adv748x_of_xlate_dai_name(struct snd_soc_component *component,
+				      struct of_phandle_args *args,
+				      const char **dai_name)
+{
+	if (dai_name)
+		*dai_name = adv748x_dai.name;
+	return 0;
+}
+
+static const struct snd_soc_component_driver adv748x_codec = {
+	.of_xlate_dai_name = adv748x_of_xlate_dai_name,
+};
+
 static int adv748x_probe(struct i2c_client *client)
 {
 	struct adv748x_state *state;
@@ -782,8 +807,16 @@ static int adv748x_probe(struct i2c_client *client)
 		goto err_cleanup_txa;
 	}
 
+	ret = devm_snd_soc_register_component(state->dev, &adv748x_codec,
+					      &adv748x_dai, 1);
+	if (ret < 0) {
+		adv_err(state, "Failed to register the codec");
+		goto err_cleanup_txb;
+	}
 	return 0;
 
+err_cleanup_txb:
+	adv748x_csi2_cleanup(&state->txb);
 err_cleanup_txa:
 	adv748x_csi2_cleanup(&state->txa);
 err_cleanup_afe:
-- 
2.24.1.508.g91d2dafee0