linux-kernel - Re: [RFC PATCH] memory: renesas-rpc-if: Correct QSPI data transfer in Manual mode

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Date:   Mon, 7 Mar 2022 19:11:49 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
Cc:     Wolfram Sang <wsa+renesas@...g-engineering.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>,
        Sergey Shtylyov <s.shtylyov@....ru>,
        "Lad, Prabhakar" <prabhakar.mahadev-lad.rj@...renesas.com>,
        Andrew Gabbasov <andrew_gabbasov@...tor.com>
Subject: Re: [RFC PATCH] memory: renesas-rpc-if: Correct QSPI data transfer in
 Manual mode

Hi Krzysztof,

On Mon, Mar 7, 2022 at 6:47 PM Krzysztof Kozlowski
<krzysztof.kozlowski@...onical.com> wrote:
> On 07/03/2022 17:44, Geert Uytterhoeven wrote:
> > On Tue, Sep 28, 2021 at 12:36 PM Krzysztof Kozlowski
> > <krzysztof.kozlowski@...onical.com> wrote:
> >> On Wed, 22 Sep 2021 11:10:06 +0200, Wolfram Sang wrote:
> >>> This patch fixes 2 problems:
> >>> [1] The output warning logs and data loss when performing
> >>> mount/umount then remount the device with jffs2 format.
> >>> [2] The access width of SMWDR[0:1]/SMRDR[0:1] register is wrong.
> >>>
> >>> This is the sample warning logs when performing mount/umount then
> >>> remount the device with jffs2 format:
> >>> jffs2: jffs2_scan_inode_node(): CRC failed on node at 0x031c51d4:
> >>> Read 0x00034e00, calculated 0xadb272a7
> >>>
> >>> [...]
> >>
> >> Applied, thanks!
> >>
> >> [1/1] memory: renesas-rpc-if: Correct QSPI data transfer in Manual mode
> >>       commit: fff53a551db50f5edecaa0b29a64056ab8d2bbca
> >
> > While trying to enable support for RPC on Salvator-X(S)[*], I
> > discovered HyperFLASH detection is broken:
> >
> >     rpc-if-hyperflash rpc-if-hyperflash: probing of hyperbus device failed

[...]

> Thanks for letting me know. This patch is already in mainline, so the
> solution is either to revert it or fix it. I will wait for it from you
> (as in plural "you" :) ).

Thanks, that's exactly what I had expected ;-)

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds