linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Baolin Wang <baolin.wang@linaro.org>
To: sre@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com
Cc: linux-pm@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, yuanjiang.yu@unisoc.com,
	baolin.wang@linaro.org, baolin.wang7@gmail.com,
	zhang.lyra@gmail.com, orsonzhai@gmail.com
Subject: [PATCH 1/5] dt-bindings: power: Introduce one property to describe the battery resistance with temperature changes
Date: Mon, 28 Oct 2019 15:18:57 +0800	[thread overview]
Message-ID: <44f0c19510c7317cb4ee6cac54b3adfa81c2d6d0.1572245011.git.baolin.wang@linaro.org> (raw)
In-Reply-To: <cover.1572245011.git.baolin.wang@linaro.org>
In-Reply-To: <cover.1572245011.git.baolin.wang@linaro.org>

Since the battery internal resistance can be changed as the temperature
changes, thus add one table to describe the battery resistance percent
in different temperature to get a accurate battery internal resistance.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
---
 .../devicetree/bindings/power/supply/battery.txt   |    5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/power/supply/battery.txt b/Documentation/devicetree/bindings/power/supply/battery.txt
index 5c913d4c..1a6f951 100644
--- a/Documentation/devicetree/bindings/power/supply/battery.txt
+++ b/Documentation/devicetree/bindings/power/supply/battery.txt
@@ -35,6 +35,10 @@ Optional Properties:
    for each of the battery capacity lookup table. The first temperature value
    specifies the OCV table 0, and the second temperature value specifies the
    OCV table 1, and so on.
+ - resistance-temp-table: An array providing the resistance percent and
+   corresponding temperature in degree Celsius, which is used to look up the
+   resistance percent according to current temperature to get a accurate
+   batterty internal resistance.
 
 Battery properties are named, where possible, for the corresponding
 elements in enum power_supply_property, defined in
@@ -61,6 +65,7 @@ Example:
 		ocv-capacity-table-0 = <4185000 100>, <4113000 95>, <4066000 90>, ...;
 		ocv-capacity-table-1 = <4200000 100>, <4185000 95>, <4113000 90>, ...;
 		ocv-capacity-table-2 = <4250000 100>, <4200000 95>, <4185000 90>, ...;
+		resistance-temp-table = <20 100>, <10 90>, <0 80>, <(-10) 60>;
 	};
 
 	charger: charger@11 {
-- 
1.7.9.5


  reply	other threads:[~2019-10-28  7:19 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-28  7:18 [PATCH 0/5] Improve the SC27XX fuel gauge controller Baolin Wang
2019-10-28  7:18 ` Baolin Wang [this message]
2019-10-30 14:38   ` [PATCH 1/5] dt-bindings: power: Introduce one property to describe the battery resistance with temperature changes Rob Herring
2019-10-31  2:13     ` Baolin Wang
2019-10-28  7:18 ` [PATCH 2/5] power: supply: core: Add battery internal resistance temperature table support Baolin Wang
2019-10-28  7:18 ` [PATCH 3/5] power: supply: sc27xx: Optimize the battery resistance with measuring temperature Baolin Wang
2019-10-28  7:19 ` [PATCH 4/5] dt-bindings: power: sc27xx: Add a new property to describe the real resistance of coulomb counter chip Baolin Wang
2019-10-30 14:39   ` Rob Herring
2019-10-31  2:14     ` Baolin Wang
2019-10-28  7:19 ` [PATCH 5/5] power: supply: sc27xx: Calibrate the resistance of coulomb counter Baolin Wang

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=44f0c19510c7317cb4ee6cac54b3adfa81c2d6d0.1572245011.git.baolin.wang@linaro.org \
    --to=baolin.wang@linaro.org \
    --cc=baolin.wang7@gmail.com \
    --cc=devicetree@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-pm@vger.kernel.org \
    --cc=mark.rutland@arm.com \
    --cc=orsonzhai@gmail.com \
    --cc=robh+dt@kernel.org \
    --cc=sre@kernel.org \
    --cc=yuanjiang.yu@unisoc.com \
    --cc=zhang.lyra@gmail.com \
    /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).