linux-kernel - Re: [PATCH 2/2] ARM: dts: qcom: ipq4019-ap.dk01.1: align flash node with bindings

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Message-ID: <CAOX2RU5OeGdhk2DoG-noE2RHDmQ-6TnFxVRwHCnmWXWRZE6-5g@mail.gmail.com>
Date:   Sat, 12 Aug 2023 16:12:06 +0200
From:   Robert Marko <robimarko@...il.com>
To:     Konrad Dybcio <konrad.dybcio@...aro.org>
Cc:     agross@...nel.org, andersson@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] ARM: dts: qcom: ipq4019-ap.dk01.1: align flash node
 with bindings

On Sat, 12 Aug 2023 at 16:08, Konrad Dybcio <konrad.dybcio@...aro.org> wrote:
>
> On 12.08.2023 16:07, Robert Marko wrote:
> > On Sat, 12 Aug 2023 at 12:47, Konrad Dybcio <konrad.dybcio@...aro.org> wrote:
> >>
> >> On 12.08.2023 11:55, Robert Marko wrote:
> >>> On Sat, 12 Aug 2023 at 00:56, Konrad Dybcio <konrad.dybcio@...aro.org> wrote:
> >>>>
> >>>> On 11.08.2023 23:35, Robert Marko wrote:
> >>>>> On Fri, 11 Aug 2023 at 23:28, Konrad Dybcio <konrad.dybcio@...aro.org> wrote:
> >>>>>>
> >>>>>> On 11.08.2023 23:01, Robert Marko wrote:
> >>>>>>> Rename the SPI-NOR node to flash@0, remove #address-cells and #size-cells
> >>>>>>> as they should be under the partitions subnode and use the generic
> >>>>>>> jedec,spi-nor compatible.
> >>>>>>>
> >>>>>>> Signed-off-by: Robert Marko <robimarko@...il.com>
> >>>>>>> ---
> >>>>>> You can also do "nandmanufacturer,mx25l25635e", "jedec,spi-nor"
> >>>>>
> >>>>> Hi,
> >>>>> I grepped the vendor U-Boot to make sure it's not being triggered off
> >>>>> the mx25l25635e
> >>>>> compatible but the only hit is the IC support itself.
> >>>>> MX25L25635 was just the original NOR IC Qualcomm used on the board so
> >>>>> to me it made
> >>>>> most sense to just use the JEDEC compatible as NOR itself is JEDEC NOR
> >>>>> compatible.
> >>>> OK if dynamic identification works fine
> >>>
> >>> It should work fine, datasheet is clear that its JEDEC compatible.
> >>> That being said, I dont actually have the board, just figured it was
> >>> time for a cleanup as
> >>> OpenWrt has been patching DK01 and DK04 for ages.
> >> Hm. Do we know whether there are still users of this boards?
> >
> > I honestly doubt it as they have been broken in OpenWrt for years and
> > nobody complained.
> > So we are currently removing support for them, but I still wanted to
> > at least fixup the DTS state
> > upstream.
> > These boards are not obtainable anymore.
> I also noticed they were detached from the other snapdragons in u-boot
> for no good reason (at first glance anyway).

If you are talking about the mainline U-Boot then yeah, my basic port was done
years ago and I knew way less about the SoC then now.
Currently its on my TODO to merge them with Snapdragon and add some proper
GPIO and pinctrl drivers as well as using the Linux DTS.

>
> If we don't get any hands up from users, I think deprecation is in order.
>
> Konrad