From: Krzysztof Kozlowski <krzk@kernel.org>
To: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
Mark Brown <broonie@kernel.org>,
Liam Girdwood <lgirdwood@gmail.com>,
Dmitry Osipenko <digetx@gmail.com>,
Lucas Stach <l.stach@pengutronix.de>,
Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
Viresh Kumar <viresh.kumar@linaro.org>,
peron.clem@gmail.com, Nishanth Menon <nm@ti.com>,
Stephen Boyd <sboyd@kernel.org>,
Vincent Guittot <vincent.guittot@linaro.org>,
Rafael Wysocki <rjw@rjwysocki.net>,
linux-samsung-soc@vger.kernel.org,
Chanwoo Choi <cw00.choi@samsung.com>,
Saravana Kannan <saravanak@google.com>
Subject: Re: [PATCH RESEND v4] soc: samsung: Add simple voltage coupler for Exynos5800
Date: Tue, 16 Jun 2020 09:02:54 +0200 [thread overview]
Message-ID: <20200616070254.GA20282@kozik-lap> (raw)
In-Reply-To: <20200616065821.29616-1-m.szyprowski@samsung.com>
On Tue, Jun 16, 2020 at 08:58:21AM +0200, Marek Szyprowski wrote:
> Add a simple custom voltage regulator coupler for Exynos5800 SoCs, which
> require coupling between "vdd_arm" and "vdd_int" regulators. This coupler
> ensures that the voltage values don't go below the bootloader-selected
> operation point during the boot process until a the clients sets their
> constraints. It is achieved by assuming minimal voltage value equal to
> the current value if no constraints are set. This also ensures proper
> voltage balancing if any of the client driver is missing.
>
> The balancing code comes from the regulator/core.c with the additional
> logic for handling regulators without client constraints applied added.
>
> Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Thanks, applied.
Best regards,
Krzysztof
prev parent reply other threads:[~2020-06-16 7:03 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20200616065834eucas1p268ef16744422664c783b17f0a18c53e2@eucas1p2.samsung.com>
2020-06-16 6:58 ` [PATCH RESEND v4] soc: samsung: Add simple voltage coupler for Exynos5800 Marek Szyprowski
2020-06-16 7:02 ` Krzysztof Kozlowski [this message]
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