Re: [PATCH v2 1/8] arm64: dts: imx8mm-nitrogen-r2: add wifi/bt chip
From: Krzysztof Kozlowski <krzk@kernel.org>
Date: 2021-02-23 19:04:44
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On Tue, 23 Feb 2021 at 11:45, Adrien Grassein [off-list ref] wrote:
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I would assume this goes from PMIC, so check your schematics. There is little point in adding a fixed regulator which is non-controllable.No, the 1.8V is issued directly from the alimentation stage. So we can't control it.quoted
I think bindings don't require it.After reading some code, I can say that vqmmc is not mandatory but it helped to find out the caps of the mmc host. In this case, we only support 1.8V on vqmmc. It avoids driver to guess it (and avoid bad behaviour on any future change).If the supply (hardware) is really 1.8 V then indeed your approach is good. So let's keep that one.To be sure to understand well: should I keep the fixed regulator? Thanks,
Yes, keep it, at least I am fine with it. Best regards, Krzysztof _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel