linux-kernel - Re: [PATCH v2 0/8] omap*: Fixes/Cleanups for MMC devicetree node

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Message-ID: <CAPDyKFrJh9qAz6q2-TH8rMshuMjDTkT5pHP==FUUH9KZEOehOQ@mail.gmail.com>
Date:   Thu, 8 Jun 2017 09:20:42 +0200
From:   Ulf Hansson <ulf.hansson@...aro.org>
To:     Kishon Vijay Abraham I <kishon@...com>
Cc:     Tony Lindgren <tony@...mide.com>, Rob Herring <robh+dt@...nel.org>,
        Sekhar Nori <nsekhar@...com>,
        Russell King <linux@...linux.org.uk>,
        linux-omap <linux-omap@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>
Subject: Re: [PATCH v2 0/8] omap*: Fixes/Cleanups for MMC devicetree node

On 7 June 2017 at 11:37, Kishon Vijay Abraham I <kishon@...com> wrote:
> There are the set of fixes that were sent initially as part
> of [1].
>
> These are mostly fixes w.r.t populating regulators in
> mmc dt node. It was working before because the regulators
> connecting to the IO lines are always on regulators. This will
> break once we add UHS support where voltage has to be changed
> dynamically.
>
> It also includes a patch to replace all vmmc_aux-supply
> with vqmmc-supply (In omap3-overo-base.dtsi remove the existing
> vqmmc-supply and then replace vmmc_aux-supply with vqmmc-supply).
> This will break old dt compatibility but not sure how better
> to handle this.
>
> Performed enumeration testing on dra72-evm-revc, dra72-evm,
> dra7-evm, am572x-evm, am571x-idk, am572x-idk, omap5-evm,
> pandaboard-es, am43xx-evm, am335x-evm, beagleboard etc.,
>
> This is a preparation series for adding UHS mode support in
> the above mentioned platforms.
>
> Changes from v1:
> *) Included a patch to replace deprecated "vmmc_aux" with
>    "vqmmc"
>
> [1] -> https://lkml.org/lkml/2017/5/19/196
>
> Kishon Vijay Abraham I (6):
>   ARM: dts: dra72-evm-common: Correct vmmc-supply for mmc2
>   ARM: dts: dra72-evm: Add vqmmc supply to mmc1
>   ARM: dts: dra72-evm-revc: Add vqmmc supply to mmc1
>   ARM: dts: am57xx-beagle-x15-revb1: Fix supply name used for MMC1 IO
>     lines
>   ARM: dts: dra7: Add "max-frequency" property to MMC dt nodes
>   ARM: dts: omap*: Replace deprecated "vmmc_aux" with "vqmmc"
>
> Ravikumar Kattekola (1):
>   ARM: dts: dra7-evm: Correct the vmmc-supply for mmc2
>
> Sekhar Nori (1):
>   ARM: OMAP2+: Add pdata-quirks for MMC/SD on DRA74x EVM
>
>  arch/arm/boot/dts/am572x-idk.dts               |  2 +-
>  arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts  |  2 +-
>  arch/arm/boot/dts/dra7-evm.dts                 | 12 ++++++++--
>  arch/arm/boot/dts/dra7.dtsi                    |  5 +++++
>  arch/arm/boot/dts/dra71-evm.dts                | 16 ++++++++++++-
>  arch/arm/boot/dts/dra72-evm-common.dtsi        |  2 --
>  arch/arm/boot/dts/dra72-evm-revc.dts           | 18 +++++++++++++++
>  arch/arm/boot/dts/dra72-evm-tps65917.dtsi      |  2 +-
>  arch/arm/boot/dts/dra72-evm.dts                | 18 +++++++++++++++
>  arch/arm/boot/dts/omap3-beagle-xm.dts          |  2 +-
>  arch/arm/boot/dts/omap3-beagle.dts             |  2 +-
>  arch/arm/boot/dts/omap3-cm-t3517.dts           |  2 +-
>  arch/arm/boot/dts/omap3-cm-t3730.dts           |  2 +-
>  arch/arm/boot/dts/omap3-devkit8000-common.dtsi |  2 +-
>  arch/arm/boot/dts/omap3-evm-common.dtsi        |  2 +-
>  arch/arm/boot/dts/omap3-n900.dts               |  2 +-
>  arch/arm/boot/dts/omap3-overo-base.dtsi        |  3 +--
>  arch/arm/boot/dts/omap3-tao3530.dtsi           |  2 +-
>  arch/arm/boot/dts/omap3-zoom3.dts              |  2 +-
>  arch/arm/boot/dts/omap3430-sdp.dts             |  2 +-
>  arch/arm/mach-omap2/pdata-quirks.c             | 31 ++++++++++++++++++++++++++
>  include/linux/platform_data/hsmmc-omap.h       |  3 +++
>  22 files changed, 114 insertions(+), 20 deletions(-)
>
> --
> 2.11.0
>

If it helps, I can host a branch with the updates on the omap_hsmmc
driver, such it can be pulled in from arm soc?

I guess you need that as, the DT changes relies on the new vqmmc
binding. Or you thing it doesn't matter, because for the current
changes that regulator is always an always on regulator?

Br
Uffe