Re: [PATCH 0/3] add coupled regulators for Exynos5422/5800

[Krzysztof Kozlowski <krzk@kernel.org>]

On Mon, 8 Jul 2019 at 16:12, <k.konieczny@partner.samsung.com> wrote:
>
> From: Kamil Konieczny <k.konieczny@partner.samsung.com>
>
> Hi,
>
> The main purpose of this patch series is to add coupled regulators for
> Exynos5422/5800 to keep constrain on voltage difference between vdd_arm
> and vdd_int to be at most 300mV. In exynos-bus instead of using
> regulator_set_voltage_tol() with default voltage tolerance it should be
> used regulator_set_voltage_triplet() with volatege range, and this is
> already present in opp/core.c code, so it can be reused. While at this,
> move setting regulators into opp/core.
>
> This patchset was tested on Odroid XU3.
>
> The last patch depends on two previous.

So you break the ABI... I assume that patchset maintains
bisectability. However there is no explanation why ABI break is needed
so this does not look good...

Best regards,
Krzysztof

>
> Regards,
> Kamil
>
> Kamil Konieczny (2):
>   opp: core: add regulators enable and disable
>   devfreq: exynos-bus: convert to use dev_pm_opp_set_rate()
>
> Marek Szyprowski (1):
>   ARM: dts: exynos: add initial data for coupled regulators for
>     Exynos5422/5800
>
>  arch/arm/boot/dts/exynos5420.dtsi             |  34 ++--
>  arch/arm/boot/dts/exynos5422-odroid-core.dtsi |   4 +
>  arch/arm/boot/dts/exynos5800-peach-pi.dts     |   4 +
>  arch/arm/boot/dts/exynos5800.dtsi             |  32 ++--
>  drivers/devfreq/exynos-bus.c                  | 172 +++++++-----------
>  drivers/opp/core.c                            |  13 ++
>  6 files changed, 120 insertions(+), 139 deletions(-)
>
> --
> 2.22.0
>