[PATCH v3] ASoC: fsl_asrc: Add an option to select internal ratio mode

[Fabio Estevam]

On Tue, Jun 30, 2020 at 11:07 AM Shengjiu Wang <shengjiu.wang at nxp.com> 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 at nxp.com>

Reviewed-by: Fabio Estevam <festevam at gmail.com>