From: Peng Fan <peng.fan@nxp.com>
To: "lgirdwood@gmail.com" <lgirdwood@gmail.com>,
"broonie@kernel.org" <broonie@kernel.org>,
"robh+dt@kernel.org" <robh+dt@kernel.org>,
"mark.rutland@arm.com" <mark.rutland@arm.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>
Cc: dl-linux-imx <linux-imx@nxp.com>, Peng Fan <peng.fan@nxp.com>
Subject: [PATCH 0/2] regulator: fixed: add off-on-delay-us
Date: Tue, 29 Oct 2019 01:21:23 +0000 [thread overview]
Message-ID: <1572311875-22880-1-git-send-email-peng.fan@nxp.com> (raw)
From: Peng Fan <peng.fan@nxp.com>
Depends on board design, the gpio controlled fixed regulator might
connect with a large capacitance. It needs time to be truly off when
disabling the regulator. If the delay is not enought, the voltage might
not drop to the expected value, such as 0, then the regulator might
have been always enabled. So introduce off-on-delay-us property and
add the support in fixed regualtor driver.
Peng Fan (2):
dt-bindings: regulator: fixed: add off-on-delay-us property
regulator: fixed: add off-on-delay
Documentation/devicetree/bindings/regulator/fixed-regulator.yaml | 4 ++++
drivers/regulator/fixed.c | 2 ++
include/linux/regulator/fixed.h | 1 +
3 files changed, 7 insertions(+)
--
2.16.4
next reply other threads:[~2019-10-29 1:21 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-29 1:21 Peng Fan [this message]
2019-10-29 1:21 ` [PATCH 1/2] dt-bindings: regulator: fixed: add off-on-delay-us property Peng Fan
2019-10-29 1:21 ` [PATCH 2/2] regulator: fixed: add off-on-delay Peng Fan
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=1572311875-22880-1-git-send-email-peng.fan@nxp.com \
--to=peng.fan@nxp.com \
--cc=broonie@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=lgirdwood@gmail.com \
--cc=linux-imx@nxp.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=robh+dt@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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®