linux-kernel - Re: [PATCH] ASoC: Intel: sof_rt5682: remove SOF_RT1015_SPEAKER_AMP

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Date:   Tue, 13 Sep 2022 10:07:35 +0200
From:   Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
To:     Brent Lu <brent.lu@...el.com>, alsa-devel@...a-project.org
Cc:     Cezary Rojewski <cezary.rojewski@...el.com>,
        Liam Girdwood <liam.r.girdwood@...ux.intel.com>,
        Peter Ujfalusi <peter.ujfalusi@...ux.intel.com>,
        Bard Liao <yung-chuan.liao@...ux.intel.com>,
        Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>,
        Kai Vehmanen <kai.vehmanen@...ux.intel.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, Yong Zhi <yong.zhi@...el.com>,
        Vamshi Krishna <vamshi.krishna.gopal@...el.com>,
        Ajye Huang <ajye.huang@...il.com>,
        Mac Chiang <mac.chiang@...el.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ASoC: Intel: sof_rt5682: remove
 SOF_RT1015_SPEAKER_AMP_100FS flag




> -static int rt1015_hw_params_pll_and_tdm(struct snd_pcm_substream *substream,
> -					 struct snd_pcm_hw_params *params)
> -{
> -	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
> -	struct snd_soc_dai *codec_dai;
> -	int i, fs = 100, ret;
> -
>  	for_each_rtd_codec_dais(rtd, i, codec_dai) {
>  		ret = snd_soc_dai_set_pll(codec_dai, 0, RT1015_PLL_S_BCLK,
> -					  params_rate(params) * fs,
> +					  clk_freq,
>  					  params_rate(params) * 256);
> -		if (ret)
> +		if (ret) {
> +			dev_err(codec_dai->dev, "fail to set pll, ret %d\n",
> +				ret);
>  			return ret;
> +		}
>  
>  		ret = snd_soc_dai_set_sysclk(codec_dai, RT1015_SCLK_S_PLL,
>  					     params_rate(params) * 256,
>  					     SND_SOC_CLOCK_IN);
> -		if (ret)
> +		if (ret) {
> +			dev_err(codec_dai->dev, "fail to set sysclk, ret %d\n",
> +				ret);
>  			return ret;
> -	}
> -	/* rx slot 1 for RT1015_DEV0_NAME */
> -	ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_codec(rtd, 0),
> -				       0x0, 0x1, 4, 24);
> -	if (ret)
> -		return ret;
> +		}
>  
> -	/* rx slot 2 for RT1015_DEV1_NAME */
> -	ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_codec(rtd, 1),
> -				       0x0, 0x2, 4, 24);
> -	if (ret)
> -		return ret;
> +		switch (dai_link->dai_fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
> +		case SND_SOC_DAIFMT_DSP_A:
> +		case SND_SOC_DAIFMT_DSP_B:
> +			/* 4-slot TDM */
> +			ret = snd_soc_dai_set_tdm_slot(codec_dai,
> +						       rt1015_tdm_mask[i].tx,
> +						       rt1015_tdm_mask[i].rx,
> +						       4,
> +						       params_width(params));

The changes look ok, just wondering if we can avoid hard-coding those 4
values. Can we not get the number of TDM slots from topology and/or
dailink configuration?


> +			if (ret < 0) {
> +				dev_err(codec_dai->dev, "fail to set tdm slot, ret %d\n",
> +					ret);
> +				return ret;
> +			}
> +			break;
> +		default:
> +			dev_dbg(codec_dai->dev, "codec is in I2S mode\n");
> +			break;
> +		}
> +	}
>  
> -	return 0;
> +	return ret;