linux-kernel - Re: [PATCH v5 00/14] Add regulator devfreq support to Panfrost

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Message-ID: <CAL_JsqLnOGVbO5T92dyzt3K-v4BRNt72yMpYR_wW-z8dpdVSvA@mail.gmail.com>
Date:   Fri, 7 Aug 2020 10:13:03 -0600
From:   Rob Herring <robh@...nel.org>
To:     Clément Péron <peron.clem@...il.com>
Cc:     Tomeu Vizoso <tomeu.vizoso@...labora.com>,
        Steven Price <steven.price@....com>,
        Alyssa Rosenzweig <alyssa.rosenzweig@...labora.com>,
        Viresh Kumar <vireshk@...nel.org>, Nishanth Menon <nm@...com>,
        Stephen Boyd <sboyd@...nel.org>,
        Maxime Ripard <mripard@...nel.org>,
        Chen-Yu Tsai <wens@...e.org>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v5 00/14] Add regulator devfreq support to Panfrost

On Fri, Jul 10, 2020 at 3:54 AM Clément Péron <peron.clem@...il.com> wrote:
>
> Hi,
>
> This serie cleans and adds regulator support to Panfrost devfreq.
> This is mostly based on comment for the freshly introduced lima
> devfreq.
>
> We need to add regulator support because on Allwinner the GPU OPP
> table defines both frequencies and voltages.
>
> First patches [01-07] should not change the actual behavior
> and introduce a proper panfrost_devfreq struct.
>
> Regards,
> Clément
>
> Changes since v4:
>  - Fix missed a pfdev to &pfdev->devfreq during rebase
>
> Changes since v3:
>  - Collect Steven Price reviewed-by tags
>  - Rebase on next/master (next-20200709)
>
> Changes since v2:
>  - Collect Alyssa Rosenzweig reviewed-by tags
>  - Fix opp_set_regulator before adding opp_table (introduce in v2)
>  - Call err_fini in case opp_add_table failed
>
> Changes since v1:
>  - Collect Steven Price reviewed-by tags
>  - Fix spinlock comment
>  - Drop OPP clock-name patch
>  - Drop device_property_test patch
>  - Add rename error labels patch
>
> Clément Péron (14):
>   drm/panfrost: avoid static declaration
>   drm/panfrost: clean headers in devfreq
>   drm/panfrost: don't use pfdevfreq.busy_count to know if hw is idle
>   drm/panfrost: introduce panfrost_devfreq struct
>   drm/panfrost: use spinlock instead of atomic
>   drm/panfrost: properly handle error in probe
>   drm/panfrost: rename error labels in device_init
>   drm/panfrost: move devfreq_init()/fini() in device
>   drm/panfrost: dynamically alloc regulators
>   drm/panfrost: add regulators to devfreq
>   arm64: defconfig: Enable devfreq cooling device
>   arm64: dts: allwinner: h6: Add cooling map for GPU
>   [DO NOT MERGE] arm64: dts: allwinner: h6: Add GPU OPP table
>   [DO NOT MERGE] arm64: dts: allwinner: force GPU regulator to be always

Patches 1-10 applied to drm-misc.

Rob