linux-kernel - Re: [PATCH v3] ASoC: fsl_asrc: Add an option to select internal ratio mode

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Message-ID: <20200701072628.GA9868@Asurada>
Date:   Wed, 1 Jul 2020 00:26:28 -0700
From:   Nicolin Chen <nicoleotsuka@...il.com>
To:     Shengjiu Wang <shengjiu.wang@....com>
Cc:     timur@...nel.org, Xiubo.Lee@...il.com, festevam@...il.com,
        broonie@...nel.org, alsa-devel@...a-project.org,
        lgirdwood@...il.com, perex@...ex.cz, tiwai@...e.com,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] ASoC: fsl_asrc: Add an option to select internal
 ratio mode

On Tue, Jun 30, 2020 at 09:56:07PM +0800, Shengjiu Wang wrote:
> The ASRC not only supports ideal ratio mode, but also supports
> internal ratio mode.
> 
> For internal rato mode, the rate of clock source should be divided
> with no remainder by sample rate, otherwise there is sound
> distortion.
> 
> Add function fsl_asrc_select_clk() to find proper clock source for
> internal ratio mode, if the clock source is available then internal
> ratio mode will be selected.
> 
> With change, the ideal ratio mode is not the only option for user.
> 
> Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>

Reviewed-by: Nicolin Chen <nicoleotsuka@...il.com>