From: Krzysztof Kozlowski <krzk@kernel.org>
To: Viresh Kumar <viresh.kumar@linaro.org>
Cc: devicetree@vger.kernel.org, linux-samsung-soc@vger.kernel.org,
linux-pm@vger.kernel.org, sboyd@kernel.org, vireshk@kernel.org,
b.zolnierkie@samsung.com, roger.lu@mediatek.com,
robh+dt@kernel.org, Sylwester Nawrocki <s.nawrocki@samsung.com>,
Stephen Boyd <sboyd@codeaurora.org>,
linux-arm-kernel@lists.infradead.org, m.szyprowski@samsung.com
Subject: Re: [PATCH v5 1/4] PM / OPP: Support adjusting OPP voltages at runtime
Date: Tue, 22 Oct 2019 20:43:34 +0200 [thread overview]
Message-ID: <20191022184334.GA8305@kozik-lap> (raw)
In-Reply-To: <20191022022341.yd6ykeszsuprmop2@vireshk-i7>
On Tue, Oct 22, 2019 at 07:53:41AM +0530, Viresh Kumar wrote:
> On 21-10-19, 13:23, Krzysztof Kozlowski wrote:
> > On Thu, Oct 17, 2019 at 12:12:58PM +0530, Viresh Kumar wrote:
> > > On 16-10-19, 16:57, Sylwester Nawrocki wrote:
> > > > From: Stephen Boyd <sboyd@codeaurora.org>
> > > >
> > > > On some SoCs the Adaptive Voltage Scaling (AVS) technique is
> > > > employed to optimize the operating voltage of a device. At a
> > > > given frequency, the hardware monitors dynamic factors and either
> > > > makes a suggestion for how much to adjust a voltage for the
> > > > current frequency, or it automatically adjusts the voltage
> > > > without software intervention. Add an API to the OPP library for
> > > > the former case, so that AVS type devices can update the voltages
> > > > for an OPP when the hardware determines the voltage should
> > > > change. The assumption is that drivers like CPUfreq or devfreq
> > > > will register for the OPP notifiers and adjust the voltage
> > > > according to suggestions that AVS makes.
> > > >
> > > > This patch is derived from [1] submitted by Stephen.
> > > > [1] https://lore.kernel.org/patchwork/patch/599279/
> > > >
> > > > Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
> > > > Signed-off-by: Roger Lu <roger.lu@mediatek.com>
> > > > [s.nawrocki@samsung.com: added handling of OPP min/max voltage]
> > > > Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
> > > > ---
> > > > drivers/opp/core.c | 69 ++++++++++++++++++++++++++++++++++++++++++
> > > > include/linux/pm_opp.h | 13 ++++++++
> > > > 2 files changed, 82 insertions(+)
> > >
> > > Applied. Thanks.
> >
> > Hi Viresh,
> >
> > Can you provide a stable tag with this patch so I can take soc/samsung
> > driver?
>
> opp-5.4-support-adjust-voltages
Thanks, merged.
Best regards,
Krzysztof
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next prev parent reply other threads:[~2019-10-22 18:43 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20191016145806eucas1p2d522901fc79e1ca6e03f1bb516a81370@eucas1p2.samsung.com>
2019-10-16 14:57 ` [PATCH v5 0/4] Exynos Adaptive Supply Voltage support Sylwester Nawrocki
[not found] ` <CGME20191016145810eucas1p1b31400c9b2e7f30cdf6deeb4ccee2788@eucas1p1.samsung.com>
2019-10-16 14:57 ` [PATCH v5 1/4] PM / OPP: Support adjusting OPP voltages at runtime Sylwester Nawrocki
2019-10-17 6:42 ` Viresh Kumar
2019-10-21 11:23 ` Krzysztof Kozlowski
2019-10-22 2:23 ` Viresh Kumar
2019-10-22 18:43 ` Krzysztof Kozlowski [this message]
[not found] ` <CGME20191016145812eucas1p1a3cf3f44a2cff4c32a2270334630c4a2@eucas1p1.samsung.com>
2019-10-16 14:57 ` [PATCH v5 2/4] dt-bindings: arm: samsung: Update the CHIPID binding for ASV Sylwester Nawrocki
2019-10-16 16:16 ` Krzysztof Kozlowski
2019-10-17 9:03 ` Sylwester Nawrocki
[not found] ` <CGME20191016145813eucas1p1623db169f1ee93f88cb2c75090804747@eucas1p1.samsung.com>
2019-10-16 14:57 ` [PATCH v5 3/4] soc: samsung: Add Exynos Adaptive Supply Voltage driver Sylwester Nawrocki
2019-10-22 19:04 ` Krzysztof Kozlowski
2019-10-23 10:48 ` Sylwester Nawrocki
2019-10-23 11:20 ` Krzysztof Kozlowski
[not found] ` <CGME20191016145814eucas1p10d50d438abb850fd82f622122b223196@eucas1p1.samsung.com>
2019-10-16 14:57 ` [PATCH v5 4/4] ARM: EXYNOS: Enable exynos-asv driver for ARCH_EXYNOS Sylwester Nawrocki
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