From: Srinivas Kandagatla srinivas.kandagatla@linaro.org
uThis patch adds support to DB820c machine driver.
Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org --- sound/soc/qcom/Kconfig | 9 +++- sound/soc/qcom/apq8096.c | 124 +++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 132 insertions(+), 1 deletion(-) create mode 100644 sound/soc/qcom/apq8096.c
diff --git a/sound/soc/qcom/Kconfig b/sound/soc/qcom/Kconfig index ecd1e4ba834d..748ccc3edefa 100644 --- a/sound/soc/qcom/Kconfig +++ b/sound/soc/qcom/Kconfig @@ -72,7 +72,6 @@ config SND_SOC_QDSP6_ASM_DAI tristate default n
- config SND_SOC_QDSP6 tristate "SoC ALSA audio driver for QDSP6" select SND_SOC_QDSP6_AFE @@ -87,3 +86,11 @@ 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" + 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..5b2036317f71 --- /dev/null +++ b/sound/soc/qcom/apq8096.c @@ -0,0 +1,124 @@ +/* + * Copyright (c) 2017 The Linux Foundation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ +#include <linux/clk.h> +#include <linux/platform_device.h> +#include <linux/module.h> +#include <linux/of_device.h> +#include <sound/soc.h> +#include <sound/soc-dapm.h> +#include <linux/dma-mapping.h> +#include <sound/pcm.h> + +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 struct snd_soc_dai_link msm8996_dai_links[] = { + /* FrontEnd DAI Links */ + { + .name = "MultiMedia1 Playback", + .stream_name = "MultiMedia1", + .cpu_dai_name = "MM_DL1", + .platform_name = "q6asm_dai", + .dynamic = 1, + .dpcm_playback = 1, + + .codec_dai_name = "snd-soc-dummy-dai", + .codec_name = "snd-soc-dummy", + }, + /* Backend DAI Links */ + { + .name = "HDMI Playback", + .stream_name = "q6afe_dai", + .cpu_dai_name = "HDMI", + .platform_name = "q6routing", + .no_pcm = 1, + .dpcm_playback = 1, + .be_hw_params_fixup = msm8996_be_hw_params_fixup, + .codec_dai_name = "i2s-hifi", + .codec_name = "hdmi-audio-codec.0.auto", + }, +}; + +static int apq8096_sbc_parse_of(struct snd_soc_card *card) +{ + struct device *dev = card->dev; + int ret; + + ret = snd_soc_of_parse_card_name(card, "qcom,model"); + if (ret) + dev_err(dev, "Error parsing card name: %d\n", ret); + + return ret; +} + +static int msm_snd_apq8096_probe(struct platform_device *pdev) +{ + int ret; + struct snd_soc_card *card; + + card = devm_kzalloc(&pdev->dev, sizeof(*card), GFP_KERNEL); + if (!card) + return -ENOMEM; + + card->dev = &pdev->dev; + + ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32)); + if (ret) + return ret; + + card->dai_link = msm8996_dai_links; + card->num_links = ARRAY_SIZE(msm8996_dai_links); + + ret = apq8096_sbc_parse_of(card); + if (ret) { + dev_err(&pdev->dev, "Error parsing OF data\n"); + return ret; + } + + ret = devm_snd_soc_register_card(&pdev->dev, card); + if (ret) + dev_err(&pdev->dev, "sound card register failed (%d)!\n", ret); + else + dev_err(&pdev->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 platform_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_platform_driver(msm_snd_apq8096_driver); +MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org"); +MODULE_DESCRIPTION("APQ8096 ASoC Machine Driver"); +MODULE_LICENSE("GPL v2");