linux-kernel - Re: [PATCH v7 3/8] ASoC: mediatek: mt8186: add mt8186-mt6366 common driver

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Message-ID: <d7934e1e-6a57-2c9a-76f7-42f0da180699@collabora.com>
Date:   Fri, 10 Jun 2022 12:01:54 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     Jiaxin Yu <jiaxin.yu@...iatek.com>, broonie@...nel.org,
        robh+dt@...nel.org
Cc:     aaronyu@...gle.com, matthias.bgg@...il.com, trevor.wu@...iatek.com,
        tzungbi@...gle.com, julianbraha@...il.com,
        alsa-devel@...a-project.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Project_Global_Chrome_Upstream_Group@...iatek.com
Subject: Re: [PATCH v7 3/8] ASoC: mediatek: mt8186: add mt8186-mt6366 common
 driver

Il 10/06/22 10:27, Jiaxin Yu ha scritto:
> Add mt8186-mt6366 common driver for mt8186 series machine.
> 
> Signed-off-by: Jiaxin Yu <jiaxin.yu@...iatek.com>
> ---
>   sound/soc/mediatek/mt8186/Makefile            |  1 +
>   .../mediatek/mt8186/mt8186-mt6366-common.c    | 59 +++++++++++++++++++
>   .../mediatek/mt8186/mt8186-mt6366-common.h    | 17 ++++++
>   3 files changed, 77 insertions(+)
>   create mode 100644 sound/soc/mediatek/mt8186/mt8186-mt6366-common.c
>   create mode 100644 sound/soc/mediatek/mt8186/mt8186-mt6366-common.h
> 

..snip..

> diff --git a/sound/soc/mediatek/mt8186/mt8186-mt6366-common.c b/sound/soc/mediatek/mt8186/mt8186-mt6366-common.c
> new file mode 100644
> index 000000000000..94e1128e8128
> --- /dev/null
> +++ b/sound/soc/mediatek/mt8186/mt8186-mt6366-common.c
> @@ -0,0 +1,59 @@
> +// SPDX-License-Identifier: GPL-2.0
> +//
> +// mt8186-mt6366-common.c
> +//	--  MT8186 MT6366 ALSA common driver
> +//
> +// Copyright (c) 2022 MediaTek Inc.
> +// Author: Jiaxin Yu <jiaxin.yu@...iatek.com>
> +//
> +#include <sound/soc.h>
> +
> +#include "../../codecs/mt6358.h"
> +#include "../common/mtk-afe-platform-driver.h"
> +#include "mt8186-afe-common.h"
> +#include "mt8186-mt6366-common.h"
> +
> +int mt8186_mt6366_init(struct snd_soc_pcm_runtime *rtd)
> +{
> +	struct snd_soc_component *cmpnt_afe =
> +		snd_soc_rtdcom_lookup(rtd, AFE_PCM_NAME);
> +	struct snd_soc_component *cmpnt_codec =
> +		asoc_rtd_to_codec(rtd, 0)->component;
> +	struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt_afe);
> +	struct mt8186_afe_private *afe_priv = afe->platform_priv;
> +	struct snd_soc_dapm_context *dapm = &rtd->card->dapm;
> +	int ret;
> +
> +	/* set mtkaif protocol */
> +	mt6358_set_mtkaif_protocol(cmpnt_codec,
> +				   MT6358_MTKAIF_PROTOCOL_1);
> +	afe_priv->mtkaif_protocol = MT6358_MTKAIF_PROTOCOL_1;
> +
> +	ret = snd_soc_dapm_sync(dapm);
> +	if (ret) {
> +		dev_info(rtd->dev, "failed to snd_soc_dapm_sync\n");

This should be a dev_err().

> +		return ret;
> +	}
> +
> +	return 0;
> +}
> +EXPORT_SYMBOL_GPL(mt8186_mt6366_init);
> +
> +int mt8186_mt6366_card_set_be_link(struct snd_soc_card *card,
> +				   struct snd_soc_dai_link *link,
> +				   struct device_node *node,
> +				   char *link_name)
> +{
> +	int ret;
> +
> +	if (node && strcmp(link->name, link_name) == 0) {
> +		ret = snd_soc_of_get_dai_link_codecs(card->dev, node, link);
> +		if (ret < 0) {
> +			dev_err_probe(card->dev, ret, "get dai link codecs fail\n");
> +			return ret;

You may at this point just 'return dev_err_probe(...)'.


Regards,
Angelo