linux-kernel - Re: [alsa-devel] [PATCH v4 14/14] ASoC: qcom: common: move be_hw

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Message-ID: <500df2e4-6593-5537-ca08-b20a9b601c47@codeaurora.org>
Date:   Wed, 19 Sep 2018 11:19:38 +0530
From:   Rohit Kumar <rohitkr@...eaurora.org>
To:     srinivas.kandagatla@...aro.org, lee.jones@...aro.org,
        robh+dt@...nel.org, broonie@...nel.org
Cc:     mark.rutland@....com, devicetree@...r.kernel.org,
        alsa-devel@...a-project.org, bgoswami@...eaurora.org,
        lgirdwood@...il.com, linux-kernel@...r.kernel.org, vkoul@...nel.org
Subject: Re: [alsa-devel] [PATCH v4 14/14] ASoC: qcom: common: move
 be_hw_fixup to common

Hello Srinivas,


We will add support for vi feedback usecase in sdm845 machine driver 
where we have to support 4 channel tx data for a particular backend. We 
should probably keep be_hw_params_fixup in respective machine driver for 
now to support such requirement.


Thanks,

Rohit


On 9/17/2018 6:27 AM, srinivas.kandagatla@...aro.org wrote:
> From: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
>
> be_hw_fixup for qdsp is common across mutiple qcom machine drivers,
> so move it to common file and remove the redundant code.
>
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
> ---
>   sound/soc/qcom/apq8096.c | 15 ---------------
>   sound/soc/qcom/common.c  | 17 +++++++++++++++++
>   sound/soc/qcom/sdm845.c  | 22 ++--------------------
>   3 files changed, 19 insertions(+), 35 deletions(-)
>
> diff --git a/sound/soc/qcom/apq8096.c b/sound/soc/qcom/apq8096.c
> index daad43f..9cb26aee 100644
> --- a/sound/soc/qcom/apq8096.c
> +++ b/sound/soc/qcom/apq8096.c
> @@ -20,20 +20,6 @@ struct apq8096_card_data {
>   	bool jack_setup;
>   };
>   
> -static int apq8096_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 msm_snd_hw_params(struct snd_pcm_substream *substream,
>   			     struct snd_pcm_hw_params *params)
>   {
> @@ -139,7 +125,6 @@ static void apq8096_add_be_ops(struct snd_soc_card *card)
>   
>   	for (i = 0; i < num_links; i++) {
>   		if (link->no_pcm == 1) {
> -			link->be_hw_params_fixup = apq8096_be_hw_params_fixup;
>   			link->init = apq8096_init;
>   			link->ops = &apq8096_ops;
>   		}
> diff --git a/sound/soc/qcom/common.c b/sound/soc/qcom/common.c
> index eb1b9da..ce8e759 100644
> --- a/sound/soc/qcom/common.c
> +++ b/sound/soc/qcom/common.c
> @@ -3,8 +3,24 @@
>   // Copyright (c) 2018, The Linux Foundation. All rights reserved.
>   
>   #include <linux/module.h>
> +#include <sound/pcm_params.h>
>   #include "common.h"
>   
> +static int qcom_snd_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;
> +	params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
> +
> +	return 0;
> +}
> +
>   int qcom_snd_parse_of(struct snd_soc_card *card)
>   {
>   	struct device_node *np;
> @@ -79,6 +95,7 @@ int qcom_snd_parse_of(struct snd_soc_card *card)
>   			}
>   			link->no_pcm = 1;
>   			link->ignore_pmdown_time = 1;
> +			link->be_hw_params_fixup = qcom_snd_be_hw_params_fixup;
>   		} else {
>   			link->platform_of_node = link->cpu_of_node;
>   			link->codec_dai_name = "snd-soc-dummy-dai";
> diff --git a/sound/soc/qcom/sdm845.c b/sound/soc/qcom/sdm845.c
> index 2a781d8..87e150c 100644
> --- a/sound/soc/qcom/sdm845.c
> +++ b/sound/soc/qcom/sdm845.c
> @@ -11,7 +11,6 @@
>   #include "common.h"
>   #include "qdsp6/q6afe.h"
>   
> -#define DEFAULT_SAMPLE_RATE_48K		48000
>   #define DEFAULT_MCLK_RATE		24576000
>   #define DEFAULT_BCLK_RATE		12288000
>   
> @@ -177,32 +176,15 @@ static struct snd_soc_ops sdm845_be_ops = {
>   	.shutdown = sdm845_snd_shutdown,
>   };
>   
> -static int sdm845_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);
> -	struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
> -
> -	rate->min = rate->max = DEFAULT_SAMPLE_RATE_48K;
> -	channels->min = channels->max = 2;
> -	snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE);
> -
> -	return 0;
> -}
> -
>   static void sdm845_add_be_ops(struct snd_soc_card *card)
>   {
>   	struct snd_soc_dai_link *link = card->dai_link;
>   	int i, num_links = card->num_links;
>   
>   	for (i = 0; i < num_links; i++) {
> -		if (link->no_pcm == 1) {
> +		if (link->no_pcm == 1)
>   			link->ops = &sdm845_be_ops;
> -			link->be_hw_params_fixup = sdm845_be_hw_params_fixup;
> -		}
> +
>   		link++;
>   	}
>   }