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

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Date:   Thu, 29 Sep 2022 10:39:26 +0200
From:   Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
To:     "Lu, Brent" <brent.lu@...el.com>,
        "alsa-devel@...a-project.org" <alsa-devel@...a-project.org>
Cc:     "Rojewski, Cezary" <cezary.rojewski@...el.com>,
        Kai Vehmanen <kai.vehmanen@...ux.intel.com>,
        Ajye Huang <ajye.huang@...il.com>,
        Takashi Iwai <tiwai@...e.com>,
        Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Liam Girdwood <liam.r.girdwood@...ux.intel.com>,
        "Chiang, Mac" <mac.chiang@...el.com>,
        Mark Brown <broonie@...nel.org>,
        Bard Liao <yung-chuan.liao@...ux.intel.com>,
        Peter Ujfalusi <peter.ujfalusi@...ux.intel.com>,
        "Gopal, Vamshi Krishna" <vamshi.krishna.gopal@...el.com>,
        "Zhi, Yong" <yong.zhi@...el.com>
Subject: Re: [PATCH] ASoC: Intel: sof_rt5682: remove
 SOF_RT1015_SPEAKER_AMP_100FS flag



On 9/29/22 08:25, Lu, Brent wrote:
>>>
>>> I think TDM slot number is possible but not TX/RX mask. What we have
>>> in topology is union of tx/rx mask of all channels. We don't know the
>>> mask of specific channel in DAI_CONFIG.
>>>
>>> DAI_CONFIG(SSP, 0, BOARD_HP_BE_ID, SSP0-Codec,
>>>         SSP_CONFIG(I2S, SSP_CLOCK(mclk, 19200000, codec_mclk_in),
>>>                 SSP_CLOCK(bclk, 2400000, codec_slave),
>>>                 SSP_CLOCK(fsync, 48000, codec_slave),
>>>                 SSP_TDM(2, 25, 3, 3),
>>
>> the 3 3 is precisely the channel mask!
>>
> 
> Yes, but what we need in the hw_params() is the mask for individual channel,
> like 0x1 for left and 0x2 for right.

Ah yes, you're talking about the mask configuration on the codec side,
sorry I was confused with your reference to DAI_CONFIG. That would be
platform-level information, not DSP topology information indeed.

Sounds good then, thanks for the explanations.

Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>