linux-kernel - Re: [PATCH 5/5] ASoC: mediatek: mt8195-afe-pcm: Clean up unnecessary functions

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Date:   Wed, 3 May 2023 13:25:46 +0000
From:   Trevor Wu (吳文良) <Trevor.Wu@...iatek.com>
To:     "lgirdwood@...il.com" <lgirdwood@...il.com>,
        "angelogioacchino.delregno@...labora.com" 
        <angelogioacchino.delregno@...labora.com>
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        <sound-open-firmware@...a-project.org>,
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        "alsa-devel@...a-project.org" <alsa-devel@...a-project.org>,
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        "linux-mediatek@...ts.infradead.org" 
        <linux-mediatek@...ts.infradead.org>,
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        YC Hung (洪堯俊) <yc.hung@...iatek.com>,
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        Chunxu Li (李春旭) <Chunxu.Li@...iatek.com>,
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        TingHan Shen (沈廷翰) 
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Subject: Re: [PATCH 5/5] ASoC: mediatek: mt8195-afe-pcm: Clean up unnecessary
 functions

On Wed, 2023-05-03 at 13:34 +0200, AngeloGioacchino Del Regno wrote:
> Function mt8195_afe_init_registers() performs just a single call to
> regmap_multi_reg_write(), it returns int and it's not error checked;
> move that call to the probe function and also add some error check.
> 
> While at it, also move the contents of mt8195_afe_parse_of() to the
> probe function as well: since this is getting a handle to topckgen
> and since that's optional, the ifdef for CONFIG_SND_SOC_MT6359 can
> also be removed.
> 
> Signed-off-by: AngeloGioacchino Del Regno <
> angelogioacchino.delregno@...labora.com>

Acked-by: Trevor Wu <trevor.wu@...iatek.com>

> ---
>  sound/soc/mediatek/mt8195/mt8195-afe-pcm.c | 32 ++++++------------
> ----
>  1 file changed, 8 insertions(+), 24 deletions(-)
> 
> diff --git a/sound/soc/mediatek/mt8195/mt8195-afe-pcm.c
> b/sound/soc/mediatek/mt8195/mt8195-afe-pcm.c
> index 105db11eecec..d22cf1664d8a 100644
> --- a/sound/soc/mediatek/mt8195/mt8195-afe-pcm.c
> +++ b/sound/soc/mediatek/mt8195/mt8195-afe-pcm.c
> @@ -3030,28 +3030,6 @@ static const struct reg_sequence
> mt8195_cg_patch[] = {
>         { AUDIO_TOP_CON1, 0xfffffff8 },
>  };
> 
> -static int mt8195_afe_init_registers(struct mtk_base_afe *afe)
> -{
> -       return regmap_multi_reg_write(afe->regmap,
> -                       mt8195_afe_reg_defaults,
> -                       ARRAY_SIZE(mt8195_afe_reg_defaults));
> -}
> -
> -static void mt8195_afe_parse_of(struct mtk_base_afe *afe,
> -                               struct device_node *np)
> -{
> -#if IS_ENABLED(CONFIG_SND_SOC_MT6359)
> -       struct mt8195_afe_private *afe_priv = afe->platform_priv;
> -
> -       afe_priv->topckgen = syscon_regmap_lookup_by_phandle(afe-
> >dev->of_node,
> -                                                            "mediate
> k,topckgen");
> -       if (IS_ERR(afe_priv->topckgen)) {
> -               dev_info(afe->dev, "%s() Cannot find topckgen
> controller: %ld\n",
> -                        __func__, PTR_ERR(afe_priv->topckgen));
> -       }
> -#endif
> -}
> -
>  static int mt8195_afe_pcm_dev_probe(struct platform_device *pdev)
>  {
>         struct mtk_base_afe *afe;
> @@ -3160,7 +3138,10 @@ static int mt8195_afe_pcm_dev_probe(struct
> platform_device *pdev)
> 
>         platform_set_drvdata(pdev, afe);
> 
> -       mt8195_afe_parse_of(afe, pdev->dev.of_node);
> +       afe_priv->topckgen = syscon_regmap_lookup_by_phandle(dev-
> >of_node, "mediatek,topckgen");
> +       if (IS_ERR(afe_priv->topckgen))
> +               dev_dbg(afe->dev, "Cannot find topckgen controller:
> %ld\n",
> +                       PTR_ERR(afe_priv->topckgen));
> 
>         /* enable clock for regcache get default value from hw */
>         afe_priv->pm_runtime_bypass_reg_ctl = true;
> @@ -3219,7 +3200,10 @@ static int mt8195_afe_pcm_dev_probe(struct
> platform_device *pdev)
>                 goto err_pm_put;
>         }
> 
> -       mt8195_afe_init_registers(afe);
> +       ret = regmap_multi_reg_write(afe->regmap,
> mt8195_afe_reg_defaults,
> +                                    ARRAY_SIZE(mt8195_afe_reg_defaul
> ts));
> +       if (ret)
> +               goto err_pm_put;
> 
>         ret = pm_runtime_put_sync(dev);
>         if (ret)
> --
> 2.40.1
> 
>