linux-kernel - Re: [PATCH v3 3/5] dt-bindings: mtd: denali

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Date:   Tue, 14 Jan 2020 18:06:07 +0100
From:   Miquel Raynal <miquel.raynal@...tlin.com>
To:     Masahiro Yamada <yamada.masahiro@...ionext.com>,
        linux-mtd@...ts.infradead.org
Cc:     Miquel Raynal <miquel.raynal@...tlin.com>,
        Marek Vasut <marex@...x.de>,
        Mark Rutland <mark.rutland@....com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Richard Weinberger <richard@....at>,
        linux-kernel@...r.kernel.org,
        Ley Foon Tan <ley.foon.tan@...el.com>,
        Dinh Nguyen <dinguyen@...nel.org>, devicetree@...r.kernel.org,
        Rob Herring <robh+dt@...nel.org>
Subject: Re: [PATCH v3 3/5] dt-bindings: mtd: denali_dt: document reset property

On Fri, 2019-12-20 at 11:31:53 UTC, Masahiro Yamada wrote:
> According to the Denali NAND Flash Memory Controller User's Guide,
> this IP has two reset signals.
> 
>   rst_n:     reset most of FFs in the controller core
>   reg_rst_n: reset all FFs in the register interface, and in the
>              initialization sequencer
> 
> This commit specifies these reset signals.
> 
> It is possible to control them separately from the IP point of view
> although they might be often tied up together in actual SoC integration.
> 
> At least for the upstream platforms, Altera/Intel SOCFPGA and Socionext
> UniPhier, the reset controller seems to provide only 1-bit control for
> the NAND controller. If it is the case, the resets property should
> reference to the same phandles for "nand" and "reg" resets, like this:
> 
>     resets = <&nand_rst>, <&nand_rst>;
>     reset-names = "nand", "reg";
> 
> Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
> Acked-by: Rob Herring <robh@...nel.org>

Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next, thanks.

Miquel