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Commit c001b153 authored by Vignesh Kulothungan's avatar Vignesh Kulothungan
Browse files

ASoC: wcd938x: add support to retrieve codec variant 



Machine driver requires a mechanism to know the codec variant
to limit supported configurations respective to that codec.
Add a function to return the wcd938x codec variant.

CRs-Fixed: 2488322
Change-Id: I16631cccb3abd32c933389e110e5b5a6b762a0e2
Signed-off-by: default avatarVignesh Kulothungan <vigneshk@codeaurora.org>
parent 1fc4ce67

asoc/codecs/wcd938x/wcd938x.c

+25 −5
Original line number Diff line number Diff line
@@ -23,6 +23,7 @@ 


#include "internal.h"

#include "wcd938x-registers.h"

#include "wcd938x.h"



#define WCD938X_DRV_NAME "wcd938x_codec"

#define NUM_SWRS_DT_PARAMS 5
@@ -39,11 +40,6 @@ 
#define ADC_MODE_VAL_ULP1     0x09

#define ADC_MODE_VAL_ULP2     0x0B



enum {

	WCD9380 = 0,

	WCD9385 = 5,

};



enum {

	CODEC_TX = 0,

	CODEC_RX,
@@ -2680,6 +2676,30 @@ static struct snd_info_entry_ops wcd938x_variant_ops = { 
	.read = wcd938x_variant_read,

};



/*

 * wcd938x_get_codec_variant

 * @component: component instance

 *

 * Return: codec variant or -EINVAL in error.

 */

int wcd938x_get_codec_variant(struct snd_soc_component *component)

{

	struct wcd938x_priv *priv = NULL;



	if (!component)

		return -EINVAL;



	priv = snd_soc_component_get_drvdata(component);

	if (!priv) {

		dev_err(component->dev,

			"%s:wcd938x not probed\n", __func__);

		return 0;

	}



	return priv->variant;

}

EXPORT_SYMBOL(wcd938x_get_codec_variant);



/*

 * wcd938x_info_create_codec_entry - creates wcd938x module

 * @codec_root: The parent directory

asoc/codecs/wcd938x/wcd938x.h

+11 −1
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0-only */

/*

 * Copyright (c) 2018, The Linux Foundation. All rights reserved.

 * Copyright (c) 2018-2019, The Linux Foundation. All rights reserved.

 */



#ifndef _WCD938X_H

#define _WCD938X_H



enum {

	WCD9380 = 0,

	WCD9385 = 5,

};



#ifdef CONFIG_SND_SOC_WCD938X

extern int wcd938x_info_create_codec_entry(struct snd_info_entry *codec_root,

				    struct snd_soc_component *component);

extern int wcd938x_get_codec_variant(struct snd_soc_component *component);

#else

extern int wcd938x_info_create_codec_entry(struct snd_info_entry *codec_root,

				    struct snd_soc_component *component)

{

	return 0;

}

extern int wcd938x_get_codec_variant(struct snd_soc_component *component)

{

	return 0;

}

#endif /* CONFIG_SND_SOC_WCD938X */

#endif /* _WCD938X_H */