linux-kernel - Re: [PATCH v3 4/4] ASoC: qcom: add machine driver for sc8280xp

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Date:   Thu, 8 Sep 2022 15:33:11 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        broonie@...nel.org
Cc:     lgirdwood@...il.com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, bgoswami@...cinc.com,
        perex@...ex.cz, tiwai@...e.com, linux-arm-msm@...r.kernel.org,
        alsa-devel@...a-project.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 4/4] ASoC: qcom: add machine driver for sc8280xp

On 08/09/2022 08:34, Srinivas Kandagatla wrote:
> Add machine driver for sc8280xp SoC.
> 
> This intial supports only includes WSA883x Speakers and WCD938x based headset.
> 
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
> ---
>  sound/soc/qcom/Kconfig    |  11 +++
>  sound/soc/qcom/Makefile   |   2 +
>  sound/soc/qcom/sc8280xp.c | 157 ++++++++++++++++++++++++++++++++++++++
>  3 files changed, 170 insertions(+)
>  create mode 100644 sound/soc/qcom/sc8280xp.c
> 
> diff --git a/sound/soc/qcom/Kconfig b/sound/soc/qcom/Kconfig
> index 750653404ba3..d0e59e07b1fc 100644
> --- a/sound/soc/qcom/Kconfig
> +++ b/sound/soc/qcom/Kconfig
> @@ -173,6 +173,17 @@ config SND_SOC_SM8250
>  	  SM8250 SoC-based systems.
>  	  Say Y if you want to use audio device on this SoCs.
>  
> +config SND_SOC_SC8280XP
> +	tristate "SoC Machine driver for SC8280XP boards"
> +	depends on QCOM_APR && SOUNDWIRE

Comments from my v2 - compile test for APR.

> +	depends on COMMON_CLK
> +	select SND_SOC_QDSP6
> +	select SND_SOC_QCOM_COMMON
> +	help
> +	  To add support for audio on Qualcomm Technologies Inc.
> +	  SC8280XP SoC-based systems.
> +	  Say Y if you want to use audio device on this SoCs.
> +
>  config SND_SOC_SC7180
>  	tristate "SoC Machine driver for SC7180 boards"
>  	depends on I2C && GPIOLIB
> diff --git a/sound/soc/qcom/Makefile b/sound/soc/qcom/Makefile
> index 8b7b876899a8..8b97172cf990 100644
> --- a/sound/soc/qcom/Makefile
> +++ b/sound/soc/qcom/Makefile
> @@ -26,6 +26,7 @@ snd-soc-sc7180-objs := sc7180.o
>  snd-soc-sc7280-objs := sc7280.o
>  snd-soc-sdm845-objs := sdm845.o
>  snd-soc-sm8250-objs := sm8250.o
> +snd-soc-sc8280xp-objs := sc8280xp.o
>  snd-soc-qcom-common-objs := common.o
>  
>  obj-$(CONFIG_SND_SOC_STORM) += snd-soc-storm.o
> @@ -33,6 +34,7 @@ obj-$(CONFIG_SND_SOC_APQ8016_SBC) += snd-soc-apq8016-sbc.o
>  obj-$(CONFIG_SND_SOC_MSM8996) += snd-soc-apq8096.o
>  obj-$(CONFIG_SND_SOC_SC7180) += snd-soc-sc7180.o
>  obj-$(CONFIG_SND_SOC_SC7280) += snd-soc-sc7280.o
> +obj-$(CONFIG_SND_SOC_SC8280XP) += snd-soc-sc8280xp.o
>  obj-$(CONFIG_SND_SOC_SDM845) += snd-soc-sdm845.o
>  obj-$(CONFIG_SND_SOC_SM8250) += snd-soc-sm8250.o
>  obj-$(CONFIG_SND_SOC_QCOM_COMMON) += snd-soc-qcom-common.o
> diff --git a/sound/soc/qcom/sc8280xp.c b/sound/soc/qcom/sc8280xp.c
> new file mode 100644
> index 000000000000..ade44ad7c585
> --- /dev/null
> +++ b/sound/soc/qcom/sc8280xp.c
> @@ -0,0 +1,157 @@
> +// SPDX-License-Identifier: GPL-2.0
> +// Copyright (c) 2022, Linaro Limited
> +
> +#include <linux/module.h>
> +#include <linux/platform_device.h>
> +#include <linux/of_device.h>
> +#include <sound/soc.h>
> +#include <sound/soc-dapm.h>
> +#include <sound/pcm.h>
> +#include <linux/soundwire/sdw.h>
> +#include <sound/jack.h>
> +#include <linux/input-event-codes.h>
> +#include "qdsp6/q6afe.h"
> +#include "common.h"
> +
> +#define DRIVER_NAME		"sc8280xp"
> +
> +struct sc8280xp_snd_data {
> +	bool stream_prepared[AFE_PORT_MAX];
> +	struct snd_soc_card *card;
> +	struct sdw_stream_runtime *sruntime[AFE_PORT_MAX];
> +	struct snd_soc_jack jack;
> +	bool jack_setup;
> +};
> +
> +static int sc8280xp_snd_init(struct snd_soc_pcm_runtime *rtd)
> +{
> +	struct sc8280xp_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
> +
> +	return qcom_snd_wcd_jack_setup(rtd, &data->jack, &data->jack_setup);
> +}
> +
> +static int sc8280xp_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
> +				     struct snd_pcm_hw_params *params)
> +{
> +	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
> +	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 = 2;
> +	channels->max = 2;
> +	switch (cpu_dai->id) {
> +	case TX_CODEC_DMA_TX_0:
> +	case TX_CODEC_DMA_TX_1:
> +	case TX_CODEC_DMA_TX_2:
> +	case TX_CODEC_DMA_TX_3:
> +		channels->min = 1;
> +		break;
> +	default:
> +		break;
> +	}
> +
> +

Just one blank line.


Best regards,
Krzysztof