From: Srinivas Kandagatla srinivas.kandagatla@linaro.org
This patch adds support to DB820c machine driver.
Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org --- sound/soc/qcom/Kconfig | 8 +++ sound/soc/qcom/apq8096.c | 173 +++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 181 insertions(+) create mode 100644 sound/soc/qcom/apq8096.c
diff --git a/sound/soc/qcom/Kconfig b/sound/soc/qcom/Kconfig index 8c2d65e0a28e..fa4b575c086c 100644 --- a/sound/soc/qcom/Kconfig +++ b/sound/soc/qcom/Kconfig @@ -77,3 +77,11 @@ config SND_SOC_QDSP6 This will enable sound soc platform specific audio drivers. This includes q6asm, q6adm, q6afe interfaces to DSP using apr. + +config SND_SOC_MSM8996 + tristate "SoC Machine driver for MSM8996 and APQ8096 boards" + depends on QCOM_APR + select SND_SOC_QDSP6V2 + default n + help + To add support for SoC audio on MSM8996 and APQ8096 boards diff --git a/sound/soc/qcom/apq8096.c b/sound/soc/qcom/apq8096.c new file mode 100644 index 000000000000..b12d2398557a --- /dev/null +++ b/sound/soc/qcom/apq8096.c @@ -0,0 +1,173 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2018, Linaro Limited + */ + +#include <linux/soc/qcom/apr.h> +#include <linux/module.h> +#include <linux/of_device.h> +#include <sound/soc.h> +#include <sound/soc-dapm.h> +#include <sound/pcm.h> + +static int msm8996_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, + struct snd_pcm_hw_params *params) +{ + struct snd_interval *rate = hw_param_interval(params, + SNDRV_PCM_HW_PARAM_RATE); + struct snd_interval *channels = hw_param_interval(params, + SNDRV_PCM_HW_PARAM_CHANNELS); + + rate->min = rate->max = 48000; + channels->min = channels->max = 2; + + return 0; +} + +static int apq8096_sbc_parse_of(struct snd_soc_card *card) +{ + struct device *dev = card->dev; + struct snd_soc_dai_link *link; + struct device_node *np, *codec, *platform, *cpu, *node = dev->of_node; + int ret, num_links; + bool is_fe; + + + ret = snd_soc_of_parse_card_name(card, "qcom,model"); + if (ret) + dev_err(dev, "Error parsing card name: %d\n", ret); + + if (of_property_read_bool(dev->of_node, "qcom,audio-routing")) + ret = snd_soc_of_parse_audio_routing(card, + "qcom,audio-routing"); + + /* Populate links */ + num_links = of_get_child_count(node); + + dev_info(dev, "Found %d child audio dai links..\n", num_links); + /* Allocate the private data and the DAI link array */ + card->dai_link = devm_kzalloc(dev, sizeof(*link) * num_links, + GFP_KERNEL); + if (!card->dai_link) + return -ENOMEM; + + card->num_links = num_links; + + link = card->dai_link; + + for_each_child_of_node(node, np) { + is_fe = false; + if (of_property_read_bool(np, "is-fe")) + is_fe = true; + + if (is_fe) { + /* BE is dummy */ + link->codec_of_node = NULL; + link->codec_dai_name = "snd-soc-dummy-dai"; + link->codec_name = "snd-soc-dummy"; + + /* FE settings */ + link->dynamic = 1; + link->dpcm_playback = 1; + + } else { + link->no_pcm = 1; + link->dpcm_playback = 1; + link->ignore_suspend = 1; + link->ignore_pmdown_time = 1; + link->be_hw_params_fixup = msm8996_be_hw_params_fixup; + } + + cpu = of_get_child_by_name(np, "cpu"); + platform = of_get_child_by_name(np, "platform"); + codec = of_get_child_by_name(np, "codec"); + + if (!cpu) { + dev_err(dev, "Can't find cpu DT node\n"); + return -EINVAL; + } + + 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"); + return -EINVAL; + } + + link->platform_of_node = of_parse_phandle(platform, + "sound-dai", 0); + if (!link->platform_of_node) { + dev_err(card->dev, "error getting platform phandle\n"); + return -EINVAL; + } + + ret = snd_soc_of_get_dai_name(cpu, &link->cpu_dai_name); + if (ret) { + dev_err(card->dev, "error getting cpu dai name\n"); + return ret; + } + + if (codec) { + ret = snd_soc_of_get_dai_link_codecs(dev, codec, link); + + if (ret < 0) { + dev_err(card->dev, "error getting codec dai name\n"); + return ret; + } + } + + ret = of_property_read_string(np, "link-name", &link->name); + if (ret) { + dev_err(card->dev, "error getting codec dai_link name\n"); + return ret; + } + + link->stream_name = link->name; + link++; + } + + return ret; +} + +static int msm_snd_apq8096_probe(struct apr_device *adev) +{ + int ret; + struct snd_soc_card *card; + + card = devm_kzalloc(&adev->dev, sizeof(*card), GFP_KERNEL); + if (!card) + return -ENOMEM; + + card->dev = &adev->dev; + + ret = apq8096_sbc_parse_of(card); + if (ret) { + dev_err(&adev->dev, "Error parsing OF data\n"); + return ret; + } + + ret = devm_snd_soc_register_card(&adev->dev, card); + if (ret) + dev_err(&adev->dev, "sound card register failed (%d)!\n", ret); + else + dev_err(&adev->dev, "sound card register Sucessfull\n"); + + return ret; +} + +static const struct of_device_id msm_snd_apq8096_dt_match[] = { + {.compatible = "qcom,apq8096-sndcard"}, + {} +}; + +static struct apr_driver msm_snd_apq8096_driver = { + .probe = msm_snd_apq8096_probe, + .driver = { + .name = "msm-snd-apq8096", + .owner = THIS_MODULE, + .of_match_table = msm_snd_apq8096_dt_match, + }, +}; +module_apr_driver(msm_snd_apq8096_driver); +MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org"); +MODULE_DESCRIPTION("APQ8096 ASoC Machine Driver"); +MODULE_LICENSE("GPL v2");