From: Saravana Kannan <saravanak@google.com>
To: Rajendra Nayak <rnayak@codeaurora.org>
Cc: Pradeep P V K <ppvk@codeaurora.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
adrian.hunter@intel.com, Rob Herring <robh+dt@kernel.org>,
Ulf Hansson <ulf.hansson@linaro.org>,
asutoshd@codeaurora.org, stummala@codeaurora.org,
sayalil@codeaurora.org, rampraka@codeaurora.org,
vbadigan@codeaurora.org, Stephen Boyd <sboyd@kernel.org>,
Georgi Djakov <georgi.djakov@linaro.org>,
mka@chromium.org, linux-mmc@vger.kernel.org,
LKML <linux-kernel@vger.kernel.org>,
linux-arm-msm@vger.kernel.org,
"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
<devicetree@vger.kernel.org>, Andy Gross <agross@kernel.org>,
linux-mmc-owner@vger.kernel.org,
Viresh Kumar <viresh.kumar@linaro.org>
Subject: Re: [RFC v6 0/2] Add SDHC interconnect bandwidth scaling
Date: Thu, 26 Mar 2020 11:33:44 -0700 [thread overview]
Message-ID: <CAGETcx_GD4K9CKyUtJEHKtAjHFKdfrepT0ZdA9WfRoUCF+QKPg@mail.gmail.com> (raw)
In-Reply-To: <c17d8842-0e1d-0014-b909-3114952b350b@codeaurora.org>
On Thu, Mar 26, 2020 at 2:22 AM Rajendra Nayak <rnayak@codeaurora.org> wrote:
>
> Adding Viresh and Saravana,
>
> On 3/23/2020 7:55 PM, Pradeep P V K wrote:
> > Add interconnect bandwidths for SDHC driver using OPP framework that
> > is required by SDHC driver based on the clock frequency and bus width
> > of the card. Otherwise, the system clocks may run at minimum clock
> > speed and thus affecting the performance.
> >
> > This change is based on
> > [RFC] mmc: host: sdhci-msm: Use the interconnect API
> > (https://lkml.org/lkml/2018/10/11/499) and
> >
> > [PATCH v6] Introduce Bandwidth OPPs for interconnects
> > (https://lkml.org/lkml/2019/12/6/740)
>
> Pradeep, since your series seems to depend on the above proposed bw bindings,
> can you post the DT changes for the platform that you are testing these
> patches on?
>
> Please note that the above series is currently deadlocked [1][2] with no clear path
> forward for now, so looking at how you plan to use this might throw some light onto
> the requirements
>
> [1] https://lkml.org/lkml/2020/1/14/511
> [2] https://lkml.org/lkml/2020/3/20/106
Sorry, not deadlocked. Just kinda busy. For [1] I believe I agreed
with Viresh later on. I'll respond to [2] soon.
-Saravana
>
> >
> > Pradeep P V K (2):
> > mmc: sdhci-msm: Add interconnect bus bandwidth scaling support
> > dt-bindings: mmc: sdhci-msm: Add interconnect BW scaling strings
> >
> > .../devicetree/bindings/mmc/sdhci-msm.txt | 18 ++
> > drivers/mmc/host/sdhci-msm.c | 240 ++++++++++++++++++++-
> > 2 files changed, 254 insertions(+), 4 deletions(-)
> >
>
> --
> QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
> of Code Aurora Forum, hosted by The Linux Foundation
prev parent reply other threads:[~2020-03-26 18:34 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-23 14:25 [RFC v6 0/2] Add SDHC interconnect bandwidth scaling Pradeep P V K
2020-03-23 14:25 ` [RFC v6 1/2] mmc: sdhci-msm: Add interconnect bus bandwidth scaling support Pradeep P V K
2020-03-23 18:49 ` Matthias Kaehlcke
2020-03-23 14:25 ` [RFC v6 2/2] dt-bindings: mmc: sdhci-msm: Add interconnect BW scaling strings Pradeep P V K
2020-03-26 9:22 ` [RFC v6 0/2] Add SDHC interconnect bandwidth scaling Rajendra Nayak
2020-03-26 18:33 ` Saravana Kannan [this message]
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=CAGETcx_GD4K9CKyUtJEHKtAjHFKdfrepT0ZdA9WfRoUCF+QKPg@mail.gmail.com \
--to=saravanak@google.com \
--cc=adrian.hunter@intel.com \
--cc=agross@kernel.org \
--cc=asutoshd@codeaurora.org \
--cc=bjorn.andersson@linaro.org \
--cc=devicetree@vger.kernel.org \
--cc=georgi.djakov@linaro.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mmc-owner@vger.kernel.org \
--cc=linux-mmc@vger.kernel.org \
--cc=mka@chromium.org \
--cc=ppvk@codeaurora.org \
--cc=rampraka@codeaurora.org \
--cc=rnayak@codeaurora.org \
--cc=robh+dt@kernel.org \
--cc=sayalil@codeaurora.org \
--cc=sboyd@kernel.org \
--cc=stummala@codeaurora.org \
--cc=ulf.hansson@linaro.org \
--cc=vbadigan@codeaurora.org \
--cc=viresh.kumar@linaro.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).