ASoC: qcom: apq8096: Add db820c machine driver
This patch adds support to DB820c machine driver. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Reviewed-by: Banajit Goswami <bgoswami@codeaurora.org> Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Srinivas Kandagatla
Mark Brown
parent
be64027d18
commit
a6f933f63f
3 changed files with 266 additions and 0 deletions
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@ -81,3 +81,12 @@ config SND_SOC_QDSP6
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This will enable sound soc platform specific
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audio drivers. This includes q6asm, q6adm,
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q6afe interfaces to DSP using apr.
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config SND_SOC_MSM8996
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tristate "SoC Machine driver for MSM8996 and APQ8096 boards"
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depends on QCOM_APR
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select SND_SOC_QDSP6
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help
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Support for Qualcomm Technologies LPASS audio block in
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APQ8096 SoC-based systems.
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Say Y if you want to use audio device on this SoCs
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@ -13,9 +13,11 @@ obj-$(CONFIG_SND_SOC_LPASS_APQ8016) += snd-soc-lpass-apq8016.o
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# Machine
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snd-soc-storm-objs := storm.o
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snd-soc-apq8016-sbc-objs := apq8016_sbc.o
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snd-soc-apq8096-objs := apq8096.o
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obj-$(CONFIG_SND_SOC_STORM) += snd-soc-storm.o
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obj-$(CONFIG_SND_SOC_APQ8016_SBC) += snd-soc-apq8016-sbc.o
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obj-$(CONFIG_SND_SOC_MSM8996) += snd-soc-apq8096.o
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#DSP lib
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obj-$(CONFIG_SND_SOC_QDSP6) += qdsp6/
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255
sound/soc/qcom/apq8096.c
Normal file
255
sound/soc/qcom/apq8096.c
Normal file
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@ -0,0 +1,255 @@
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// SPDX-License-Identifier: GPL-2.0
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// Copyright (c) 2018, Linaro Limited
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#include <linux/soc/qcom/apr.h>
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#include <linux/module.h>
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#include <linux/component.h>
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#include <linux/platform_device.h>
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#include <linux/of_device.h>
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#include <sound/soc.h>
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#include <sound/soc-dapm.h>
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#include <sound/pcm.h>
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static int apq8096_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
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struct snd_pcm_hw_params *params)
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{
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struct snd_interval *rate = hw_param_interval(params,
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SNDRV_PCM_HW_PARAM_RATE);
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struct snd_interval *channels = hw_param_interval(params,
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SNDRV_PCM_HW_PARAM_CHANNELS);
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rate->min = rate->max = 48000;
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channels->min = channels->max = 2;
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return 0;
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}
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static int apq8096_sbc_parse_of(struct snd_soc_card *card)
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{
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struct device_node *np;
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struct device_node *codec = NULL;
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struct device_node *platform = NULL;
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struct device_node *cpu = NULL;
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struct device *dev = card->dev;
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struct snd_soc_dai_link *link;
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int ret, num_links;
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ret = snd_soc_of_parse_card_name(card, "qcom,model");
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if (ret) {
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dev_err(dev, "Error parsing card name: %d\n", ret);
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return ret;
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}
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/* DAPM routes */
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if (of_property_read_bool(dev->of_node, "qcom,audio-routing")) {
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ret = snd_soc_of_parse_audio_routing(card,
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"qcom,audio-routing");
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if (ret)
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return ret;
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}
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/* Populate links */
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num_links = of_get_child_count(dev->of_node);
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/* Allocate the DAI link array */
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card->dai_link = kcalloc(num_links, sizeof(*link), GFP_KERNEL);
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if (!card->dai_link)
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return -ENOMEM;
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card->num_links = num_links;
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link = card->dai_link;
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for_each_child_of_node(dev->of_node, np) {
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cpu = of_get_child_by_name(np, "cpu");
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if (!cpu) {
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dev_err(dev, "Can't find cpu DT node\n");
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ret = -EINVAL;
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goto err;
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}
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link->cpu_of_node = of_parse_phandle(cpu, "sound-dai", 0);
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if (!link->cpu_of_node) {
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dev_err(card->dev, "error getting cpu phandle\n");
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ret = -EINVAL;
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goto err;
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}
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ret = snd_soc_of_get_dai_name(cpu, &link->cpu_dai_name);
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if (ret) {
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dev_err(card->dev, "error getting cpu dai name\n");
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goto err;
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}
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platform = of_get_child_by_name(np, "platform");
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codec = of_get_child_by_name(np, "codec");
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if (codec && platform) {
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link->platform_of_node = of_parse_phandle(platform,
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"sound-dai",
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0);
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if (!link->platform_of_node) {
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dev_err(card->dev, "platform dai not found\n");
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ret = -EINVAL;
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goto err;
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}
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ret = snd_soc_of_get_dai_link_codecs(dev, codec, link);
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if (ret < 0) {
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dev_err(card->dev, "codec dai not found\n");
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goto err;
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}
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link->no_pcm = 1;
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link->ignore_pmdown_time = 1;
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link->be_hw_params_fixup = apq8096_be_hw_params_fixup;
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} else {
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link->platform_of_node = link->cpu_of_node;
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link->codec_dai_name = "snd-soc-dummy-dai";
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link->codec_name = "snd-soc-dummy";
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link->dynamic = 1;
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}
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link->ignore_suspend = 1;
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ret = of_property_read_string(np, "link-name", &link->name);
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if (ret) {
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dev_err(card->dev, "error getting codec dai_link name\n");
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goto err;
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}
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link->dpcm_playback = 1;
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link->dpcm_capture = 1;
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link->stream_name = link->name;
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link++;
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}
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return 0;
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err:
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of_node_put(cpu);
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of_node_put(codec);
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of_node_put(platform);
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kfree(card->dai_link);
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return ret;
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}
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static int apq8096_bind(struct device *dev)
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{
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struct snd_soc_card *card;
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int ret;
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card = kzalloc(sizeof(*card), GFP_KERNEL);
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if (!card)
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return -ENOMEM;
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component_bind_all(dev, card);
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card->dev = dev;
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ret = apq8096_sbc_parse_of(card);
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if (ret) {
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dev_err(dev, "Error parsing OF data\n");
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goto err;
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}
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ret = snd_soc_register_card(card);
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if (ret)
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goto err;
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return 0;
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err:
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component_unbind_all(dev, card);
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kfree(card);
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return ret;
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}
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static void apq8096_unbind(struct device *dev)
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{
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struct snd_soc_card *card = dev_get_drvdata(dev);
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snd_soc_unregister_card(card);
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component_unbind_all(dev, card);
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kfree(card->dai_link);
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kfree(card);
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}
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static const struct component_master_ops apq8096_ops = {
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.bind = apq8096_bind,
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.unbind = apq8096_unbind,
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};
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static int apq8016_compare_of(struct device *dev, void *data)
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{
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return dev->of_node == data;
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}
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static void apq8016_release_of(struct device *dev, void *data)
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{
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of_node_put(data);
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}
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static int add_audio_components(struct device *dev,
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struct component_match **matchptr)
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{
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struct device_node *np, *platform, *cpu, *node, *dai_node;
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node = dev->of_node;
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for_each_child_of_node(node, np) {
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cpu = of_get_child_by_name(np, "cpu");
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if (cpu) {
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dai_node = of_parse_phandle(cpu, "sound-dai", 0);
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of_node_get(dai_node);
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component_match_add_release(dev, matchptr,
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apq8016_release_of,
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apq8016_compare_of,
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dai_node);
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}
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platform = of_get_child_by_name(np, "platform");
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if (platform) {
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dai_node = of_parse_phandle(platform, "sound-dai", 0);
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component_match_add_release(dev, matchptr,
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apq8016_release_of,
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apq8016_compare_of,
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dai_node);
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}
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}
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return 0;
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}
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static int apq8096_platform_probe(struct platform_device *pdev)
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{
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struct component_match *match = NULL;
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int ret;
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ret = add_audio_components(&pdev->dev, &match);
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if (ret)
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return ret;
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return component_master_add_with_match(&pdev->dev, &apq8096_ops, match);
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}
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static int apq8096_platform_remove(struct platform_device *pdev)
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{
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component_master_del(&pdev->dev, &apq8096_ops);
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return 0;
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}
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static const struct of_device_id msm_snd_apq8096_dt_match[] = {
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{.compatible = "qcom,apq8096-sndcard"},
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{}
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};
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MODULE_DEVICE_TABLE(of, msm_snd_apq8096_dt_match);
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static struct platform_driver msm_snd_apq8096_driver = {
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.probe = apq8096_platform_probe,
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.remove = apq8096_platform_remove,
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.driver = {
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.name = "msm-snd-apq8096",
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.owner = THIS_MODULE,
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.of_match_table = msm_snd_apq8096_dt_match,
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},
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};
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module_platform_driver(msm_snd_apq8096_driver);
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MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org");
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MODULE_DESCRIPTION("APQ8096 ASoC Machine Driver");
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MODULE_LICENSE("GPL v2");
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