From: Thierry Reding <thierry.reding@gmail.com>
To: Dmitry Osipenko <digetx@gmail.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>,
Peter De Schrijver <pdeschrijver@nvidia.com>,
Prashant Gaikwad <pgaikwad@nvidia.com>,
Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@kernel.org>,
linux-tegra@vger.kernel.org, linux-clk@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 4/5] clk: tegra: Halve SCLK rate on Tegra20
Date: Fri, 15 Jan 2021 16:14:04 +0100 [thread overview]
Message-ID: <YAGxPEWGN3sgovJo@ulmo> (raw)
In-Reply-To: <20210112122724.1712-5-digetx@gmail.com>
[-- Attachment #1: Type: text/plain, Size: 579 bytes --]
On Tue, Jan 12, 2021 at 03:27:23PM +0300, Dmitry Osipenko wrote:
> Higher SCLK rates on Tegra20 require high core voltage. The higher
> clock rate may have a positive performance effect only for AHB DMA
> transfers and AVP CPU, but both aren't used by upstream kernel at all.
> Halve SCLK rate on Tegra20 in order to remove the high core voltage
> requirement.
>
> Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
> ---
> drivers/clk/tegra/clk-tegra20.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
Acked-by: Thierry Reding <treding@nvidia.com>
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]
next prev parent reply other threads:[~2021-01-15 15:15 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-12 12:27 [PATCH v2 0/5] Couple improvements for Tegra clk driver Dmitry Osipenko
2021-01-12 12:27 ` [PATCH v2 1/5] clk: tegra30: Use 300MHz for video decoder by default Dmitry Osipenko
2021-01-15 15:02 ` Thierry Reding
2021-01-12 12:27 ` [PATCH v2 2/5] clk: tegra: Fix refcounting of gate clocks Dmitry Osipenko
2021-01-15 15:17 ` Thierry Reding
2021-01-12 12:27 ` [PATCH v2 3/5] clk: tegra: Ensure that PLLU configuration is applied properly Dmitry Osipenko
2021-01-15 15:13 ` Thierry Reding
2021-01-12 12:27 ` [PATCH v2 4/5] clk: tegra: Halve SCLK rate on Tegra20 Dmitry Osipenko
2021-01-15 15:14 ` Thierry Reding [this message]
2021-01-12 12:27 ` [PATCH v2 5/5] MAINTAINERS: Hand Tegra clk driver to Jon and Thierry Dmitry Osipenko
2021-01-15 15:15 ` Thierry Reding
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=YAGxPEWGN3sgovJo@ulmo \
--to=thierry.reding@gmail.com \
--cc=digetx@gmail.com \
--cc=jonathanh@nvidia.com \
--cc=linux-clk@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-tegra@vger.kernel.org \
--cc=mturquette@baylibre.com \
--cc=pdeschrijver@nvidia.com \
--cc=pgaikwad@nvidia.com \
--cc=sboyd@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.