Message-ID: <20210210184311.ouc6zft675kybyjx@mobilestation>
Date:   Wed, 10 Feb 2021 21:43:11 +0300
From:   Serge Semin <Sergey.Semin@...kalelectronics.ru>
To:     Florian Fainelli <f.fainelli@...il.com>
CC:     Serge Semin <fancer.lancer@...il.com>,
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Subject: Re: [PATCH RESEND v6 00/10] dt-bindings: usb: Harmonize
 xHCI/EHCI/OHCI/DWC3 nodes name

On Wed, Feb 10, 2021 at 10:21:47AM -0800, Florian Fainelli wrote:
> On 2/10/21 9:28 AM, Serge Semin wrote:
> > As the subject states this series is an attempt to harmonize the xHCI,
> > EHCI, OHCI and DWC USB3 DT nodes with the DT schema introduced in the
> > framework of the patchset [1].
> > 
> > Firstly as Krzysztof suggested we've deprecated a support of DWC USB3
> > controllers with "synopsys,"-vendor prefix compatible string in favor of
> > the ones with valid "snps,"-prefix. It's done in all the DTS files,
> > which have been unfortunate to define such nodes.
> > 
> > Secondly we suggest to fix the snps,quirk-frame-length-adjustment property
> > declaration in the Amlogic meson-g12-common.dtsi DTS file, since it has
> > been erroneously declared as boolean while having uint32 type. Neil said
> > it was ok to init that property with 0x20 value.
> > 
> > Thirdly the main part of the patchset concern fixing the xHCI, EHCI/OHCI
> > and DWC USB3 DT nodes name as in accordance with their DT schema the
> > corresponding node name is suppose to comply with the Generic USB HCD DT
> > schema, which requires the USB nodes to have the name acceptable by the
> > regexp: "^usb(@.*)?". Such requirement had been applicable even before we
> > introduced the new DT schema in [1], but as we can see it hasn't been
> > strictly implemented for a lot the DTS files. Since DT schema is now
> > available the automated DTS validation shall make sure that the rule isn't
> > violated.
> > 
> > Note most of these patches have been a part of the last three patches of
> > [1]. But since there is no way to have them merged in in a combined
> > manner, I had to move them to the dedicated series and split them up so to
> > be accepted by the corresponding subsystem maintainers one-by-one.
> > 
> > [1] Link: https://lore.kernel.org/linux-usb/20201014101402.18271-1-Sergey.Semin@baikalelectronics.ru/
> > Changelog v1:
> > - As Krzysztof suggested I've created a script which checked whether the
> >   node names had been also updated in all the depended dts files. As a
> >   result I found two more files which should have been also modified:
> >   arch/arc/boot/dts/{axc003.dtsi,axc003_idu.dtsi}
> > - Correct the USB DWC3 nodes name found in
> >   arch/arm64/boot/dts/apm/{apm-storm.dtsi,apm-shadowcat.dtsi} too.
> > 
> > Link: https://lore.kernel.org/linux-usb/20201020115959.2658-1-Sergey.Semin@baikalelectronics.ru
> > Changelog v2:
> > - Drop the patch:
> >   [PATCH 01/29] usb: dwc3: Discard synopsys,dwc3 compatibility string
> >   and get back the one which marks the "synopsys,dwc3" compatible string
> >   as deprecated into the DT schema related series.
> > - Drop the patches:
> >   [PATCH 03/29] arm: dts: am437x: Correct DWC USB3 compatible string
> >   [PATCH 04/29] arm: dts: exynos: Correct DWC USB3 compatible string
> >   [PATCH 07/29] arm: dts: bcm53x: Harmonize EHCI/OHCI DT nodes name
> >   [PATCH 08/29] arm: dts: stm32: Harmonize EHCI/OHCI DT nodes name
> >   [PATCH 16/29] arm: dts: bcm5301x: Harmonize xHCI DT nodes name
> >   [PATCH 19/29] arm: dts: exynos: Harmonize DWC USB3 DT nodes name
> >   [PATCH 21/29] arm: dts: ls1021a: Harmonize DWC USB3 DT nodes name
> >   [PATCH 22/29] arm: dts: omap5: Harmonize DWC USB3 DT nodes name
> >   [PATCH 24/29] arm64: dts: allwinner: h6: Harmonize DWC USB3 DT nodes name
> >   [PATCH 26/29] arm64: dts: exynos: Harmonize DWC USB3 DT nodes name
> >   [PATCH 27/29] arm64: dts: layerscape: Harmonize DWC USB3 DT nodes name
> >   since they have been applied to the corresponding maintainers repos.
> > - Fix drivers/usb/dwc3/dwc3-qcom.c to be looking for the "usb@"-prefixed
> >   sub-node and falling back to the "dwc3@"-prefixed one on failure.
> > 
> > Link: https://lore.kernel.org/linux-usb/20201111091552.15593-1-Sergey.Semin@baikalelectronics.ru
> > Changelog v3:
> > - Drop the patches:
> >   [PATCH v2 04/18] arm: dts: hisi-x5hd2: Harmonize EHCI/OHCI DT nodes name
> >   [PATCH v2 06/18] arm64: dts: hisi: Harmonize EHCI/OHCI DT nodes name
> >   [PATCH v2 07/18] mips: dts: jz47x: Harmonize EHCI/OHCI DT nodes name
> >   [PATCH v2 08/18] mips: dts: sead3: Harmonize EHCI/OHCI DT nodes name
> >   [PATCH v2 09/18] mips: dts: ralink: mt7628a: Harmonize EHCI/OHCI DT nodes name
> >   [PATCH v2 11/18] arm64: dts: marvell: cp11x: Harmonize xHCI DT nodes name
> >   [PATCH v2 12/18] arm: dts: marvell: armada-375: Harmonize DWC USB3 DT nodes name
> >   [PATCH v2 16/18] arm64: dts: hi3660: Harmonize DWC USB3 DT nodes name
> >   since they have been applied to the corresponding maintainers repos.
> > 
> > Link: https://lore.kernel.org/linux-usb/20201205155621.3045-1-Sergey.Semin@baikalelectronics.ru
> > Changelog v4:
> > - Just resend.
> > 
> > Link: https://lore.kernel.org/linux-usb/20201210091756.18057-1-Sergey.Semin@baikalelectronics.ru/
> > Changelog v5:
> > - Drop the patch:
> >   [PATCH v4 02/10] arm64: dts: amlogic: meson-g12: Set FL-adj property value
> >   since it has been applied to the corresponding maintainers repos.
> > - Get back the patch:
> >   [PATCH 21/29] arm: dts: ls1021a: Harmonize DWC USB3 DT nodes name
> >   as it has been missing in the kernel 5.11-rc7
> > - Rebase onto the kernel 5.11-rc7
> > 
> > Link: https://lore.kernel.org/lkml/20210208135154.6645-1-Sergey.Semin@baikalelectronics.ru/
> > Changelog v6:
> > - Just resend and add linux-usb.vger.kernel.org to the list of Ccecipients.
> 
> 

> If this needs to go on, can you drop the people who already took your
> patches (trying to lower my email amount to something manageable).
> Thank you.

Ah, sorry for the noise. I'll clean the Cc-list up in the next attempt
to have this finally fully accepted.

-Sergey

> -- 
> Florian

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