Re: [PATCH 1/1] ASoC: sunxi: sun4i-i2s: fix LRCLK polarity in i2s mode

[Matteo Martelli]

Maxime Ripard wrote:
> > -	/*
> > -	 * DAI clock polarity
> > -	 *
> > -	 * The setup for LRCK contradicts the datasheet, but under a
> > -	 * scope it's clear that the LRCK polarity is reversed
> > -	 * compared to the expected polarity on the bus.
> > -	 */
> 
> I think we should keep that comment somewhere.

I think that keeping that comment would be very misleading since the LRCLK
setup would not contradict the datasheet anymore [1][2].

Also, do you recall any details about the mentioned scope test setup? Was i2s
mode tested in that occasion? It would help clarify the situation.

Could anyone verify this patch against H3/H6 SoCs?

[1]: https://linux-sunxi.org/images/4/4b/Allwinner_H3_Datasheet_V1.2.pdf
section 8.6.7.2
[2]: https://linux-sunxi.org/images/4/46/Allwinner_H6_V200_User_Manual_V1.1.pdf
section 7.2.5.2

Thanks,
Matteo Martelli