[alsa-devel] [PATCH v5 3/4] ASoC: qcom: Add support to parse common audio device nodes
Rohit kumar
rohitkr at codeaurora.org
Wed Aug 1 11:01:08 CEST 2018
This adds support to parse cpu, platform and codec
device nodes and add them in dai-links. Also, update
apq8096 machine driver to use the common API.
Acked-by: Srinivas Kandagatla <srinivas.kandagatla at linaro.org>
Signed-off-by: Rohit kumar <rohitkr at codeaurora.org>
---
sound/soc/qcom/Makefile | 2 +-
sound/soc/qcom/apq8096.c | 111 +++++-----------------------------------------
sound/soc/qcom/common.c | 112 +++++++++++++++++++++++++++++++++++++++++++++++
sound/soc/qcom/common.h | 12 +++++
4 files changed, 136 insertions(+), 101 deletions(-)
create mode 100644 sound/soc/qcom/common.c
create mode 100644 sound/soc/qcom/common.h
diff --git a/sound/soc/qcom/Makefile b/sound/soc/qcom/Makefile
index 206945b..fefecc0 100644
--- a/sound/soc/qcom/Makefile
+++ b/sound/soc/qcom/Makefile
@@ -13,7 +13,7 @@ obj-$(CONFIG_SND_SOC_LPASS_APQ8016) += snd-soc-lpass-apq8016.o
# Machine
snd-soc-storm-objs := storm.o
snd-soc-apq8016-sbc-objs := apq8016_sbc.o
-snd-soc-apq8096-objs := apq8096.o
+snd-soc-apq8096-objs := apq8096.o common.o
obj-$(CONFIG_SND_SOC_STORM) += snd-soc-storm.o
obj-$(CONFIG_SND_SOC_APQ8016_SBC) += snd-soc-apq8016-sbc.o
diff --git a/sound/soc/qcom/apq8096.c b/sound/soc/qcom/apq8096.c
index a561562..1e4a90d 100644
--- a/sound/soc/qcom/apq8096.c
+++ b/sound/soc/qcom/apq8096.c
@@ -9,6 +9,7 @@
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/pcm.h>
+#include "common.h"
static int apq8096_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
struct snd_pcm_hw_params *params)
@@ -24,109 +25,16 @@ static int apq8096_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
return 0;
}
-static int apq8096_sbc_parse_of(struct snd_soc_card *card)
+static void apq8096_add_be_ops(struct snd_soc_card *card)
{
- struct device_node *np;
- struct device_node *codec = NULL;
- struct device_node *platform = NULL;
- struct device_node *cpu = NULL;
- struct device *dev = card->dev;
- struct snd_soc_dai_link *link;
- int ret, num_links;
-
- ret = snd_soc_of_parse_card_name(card, "qcom,model");
- if (ret) {
- dev_err(dev, "Error parsing card name: %d\n", ret);
- return ret;
- }
-
- /* DAPM routes */
- if (of_property_read_bool(dev->of_node, "qcom,audio-routing")) {
- ret = snd_soc_of_parse_audio_routing(card,
- "qcom,audio-routing");
- if (ret)
- return ret;
- }
-
- /* Populate links */
- num_links = of_get_child_count(dev->of_node);
-
- /* Allocate the DAI link array */
- card->dai_link = kcalloc(num_links, sizeof(*link), GFP_KERNEL);
- if (!card->dai_link)
- return -ENOMEM;
+ struct snd_soc_dai_link *link = card->dai_link;
+ int i, num_links = card->num_links;
- card->num_links = num_links;
- link = card->dai_link;
-
- for_each_child_of_node(dev->of_node, np) {
- cpu = of_get_child_by_name(np, "cpu");
- if (!cpu) {
- dev_err(dev, "Can't find cpu DT node\n");
- ret = -EINVAL;
- goto err;
- }
-
- link->cpu_of_node = of_parse_phandle(cpu, "sound-dai", 0);
- if (!link->cpu_of_node) {
- dev_err(card->dev, "error getting cpu phandle\n");
- ret = -EINVAL;
- goto err;
- }
-
- ret = snd_soc_of_get_dai_name(cpu, &link->cpu_dai_name);
- if (ret) {
- dev_err(card->dev, "error getting cpu dai name\n");
- goto err;
- }
-
- platform = of_get_child_by_name(np, "platform");
- codec = of_get_child_by_name(np, "codec");
- if (codec && platform) {
- link->platform_of_node = of_parse_phandle(platform,
- "sound-dai",
- 0);
- if (!link->platform_of_node) {
- dev_err(card->dev, "platform dai not found\n");
- ret = -EINVAL;
- goto err;
- }
-
- ret = snd_soc_of_get_dai_link_codecs(dev, codec, link);
- if (ret < 0) {
- dev_err(card->dev, "codec dai not found\n");
- goto err;
- }
- link->no_pcm = 1;
- link->ignore_pmdown_time = 1;
+ for (i = 0; i < num_links; i++) {
+ if (link->no_pcm == 1)
link->be_hw_params_fixup = apq8096_be_hw_params_fixup;
- } else {
- link->platform_of_node = link->cpu_of_node;
- link->codec_dai_name = "snd-soc-dummy-dai";
- link->codec_name = "snd-soc-dummy";
- link->dynamic = 1;
- }
-
- link->ignore_suspend = 1;
- ret = of_property_read_string(np, "link-name", &link->name);
- if (ret) {
- dev_err(card->dev, "error getting codec dai_link name\n");
- goto err;
- }
-
- link->dpcm_playback = 1;
- link->dpcm_capture = 1;
- link->stream_name = link->name;
link++;
}
-
- return 0;
-err:
- of_node_put(cpu);
- of_node_put(codec);
- of_node_put(platform);
- kfree(card->dai_link);
- return ret;
}
static int apq8096_platform_probe(struct platform_device *pdev)
@@ -142,18 +50,21 @@ static int apq8096_platform_probe(struct platform_device *pdev)
card->dev = dev;
card->auto_bind = true;
dev_set_drvdata(dev, card);
- ret = apq8096_sbc_parse_of(card);
+ ret = qcom_snd_parse_of(card);
if (ret) {
dev_err(dev, "Error parsing OF data\n");
goto err;
}
+ apq8096_add_be_ops(card);
ret = snd_soc_register_card(card);
if (ret)
- goto err;
+ goto err_card_register;
return 0;
+err_card_register:
+ kfree(card->dai_link);
err:
kfree(card);
return ret;
diff --git a/sound/soc/qcom/common.c b/sound/soc/qcom/common.c
new file mode 100644
index 0000000..eb1b9da
--- /dev/null
+++ b/sound/soc/qcom/common.c
@@ -0,0 +1,112 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2018, Linaro Limited.
+// Copyright (c) 2018, The Linux Foundation. All rights reserved.
+
+#include <linux/module.h>
+#include "common.h"
+
+int qcom_snd_parse_of(struct snd_soc_card *card)
+{
+ struct device_node *np;
+ struct device_node *codec = NULL;
+ struct device_node *platform = NULL;
+ struct device_node *cpu = NULL;
+ struct device *dev = card->dev;
+ struct snd_soc_dai_link *link;
+ int ret, num_links;
+
+ ret = snd_soc_of_parse_card_name(card, "model");
+ if (ret) {
+ dev_err(dev, "Error parsing card name: %d\n", ret);
+ return ret;
+ }
+
+ /* DAPM routes */
+ if (of_property_read_bool(dev->of_node, "audio-routing")) {
+ ret = snd_soc_of_parse_audio_routing(card,
+ "audio-routing");
+ if (ret)
+ return ret;
+ }
+
+ /* Populate links */
+ num_links = of_get_child_count(dev->of_node);
+
+ /* Allocate the DAI link array */
+ card->dai_link = kcalloc(num_links, sizeof(*link), GFP_KERNEL);
+ if (!card->dai_link)
+ return -ENOMEM;
+
+ card->num_links = num_links;
+ link = card->dai_link;
+ for_each_child_of_node(dev->of_node, np) {
+ cpu = of_get_child_by_name(np, "cpu");
+ if (!cpu) {
+ dev_err(dev, "Can't find cpu DT node\n");
+ ret = -EINVAL;
+ goto err;
+ }
+
+ link->cpu_of_node = of_parse_phandle(cpu, "sound-dai", 0);
+ if (!link->cpu_of_node) {
+ dev_err(card->dev, "error getting cpu phandle\n");
+ ret = -EINVAL;
+ goto err;
+ }
+
+ ret = snd_soc_of_get_dai_name(cpu, &link->cpu_dai_name);
+ if (ret) {
+ dev_err(card->dev, "error getting cpu dai name\n");
+ goto err;
+ }
+
+ platform = of_get_child_by_name(np, "platform");
+ codec = of_get_child_by_name(np, "codec");
+ if (codec && platform) {
+ link->platform_of_node = of_parse_phandle(platform,
+ "sound-dai",
+ 0);
+ if (!link->platform_of_node) {
+ dev_err(card->dev, "platform dai not found\n");
+ ret = -EINVAL;
+ goto err;
+ }
+
+ ret = snd_soc_of_get_dai_link_codecs(dev, codec, link);
+ if (ret < 0) {
+ dev_err(card->dev, "codec dai not found\n");
+ goto err;
+ }
+ link->no_pcm = 1;
+ link->ignore_pmdown_time = 1;
+ } else {
+ link->platform_of_node = link->cpu_of_node;
+ link->codec_dai_name = "snd-soc-dummy-dai";
+ link->codec_name = "snd-soc-dummy";
+ link->dynamic = 1;
+ }
+
+ link->ignore_suspend = 1;
+ ret = of_property_read_string(np, "link-name", &link->name);
+ if (ret) {
+ dev_err(card->dev, "error getting codec dai_link name\n");
+ goto err;
+ }
+
+ link->dpcm_playback = 1;
+ link->dpcm_capture = 1;
+ link->stream_name = link->name;
+ link++;
+ }
+
+ return 0;
+err:
+ of_node_put(cpu);
+ of_node_put(codec);
+ of_node_put(platform);
+ kfree(card->dai_link);
+ return ret;
+}
+EXPORT_SYMBOL(qcom_snd_parse_of);
+
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/qcom/common.h b/sound/soc/qcom/common.h
new file mode 100644
index 0000000..ad5d2cf
--- /dev/null
+++ b/sound/soc/qcom/common.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+// Copyright (c) 2018, The Linux Foundation. All rights reserved.
+
+#ifndef __QCOM_SND_COMMON_H__
+#define __QCOM_SND_COMMON_H__
+
+#include <linux/component.h>
+#include <sound/soc.h>
+
+int qcom_snd_parse_of(struct snd_soc_card *card);
+
+#endif
--
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