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From: "Michał Mirosław" <mirq-linux@rere.qmqm.pl>
To: Sebastian Reichel <sebastian.reichel@collabora.com>
Cc: clang-built-linux@googlegroups.com, linux-kernel@vger.kernel.org,
	linux-pm@vger.kernel.org
Subject: [PATCH v4 4/4] power: supply: core: document measurement points
Date: Fri, 01 May 2020 17:11:19 +0200	[thread overview]
Message-ID: <25387c38a2454bef6ddec08ea322dd0d700f249c.1588345420.git.mirq-linux@rere.qmqm.pl> (raw)
In-Reply-To: <cover.1588345420.git.mirq-linux@rere.qmqm.pl>

Document used prefixes for input/output/storage voltages and currents.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
---
 Documentation/power/power_supply_class.rst | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/power/power_supply_class.rst b/Documentation/power/power_supply_class.rst
index 7b8c42f8b1de..c41b25aaa755 100644
--- a/Documentation/power/power_supply_class.rst
+++ b/Documentation/power/power_supply_class.rst
@@ -28,6 +28,12 @@ indication (including whether to use it at all) are fully controllable by
 user and/or specific machine defaults, per design principles of LED
 framework).
 
+There are three defined points of measurement for the benefit of mobile and
+UPS-like power supplies: INPUT (external power source), OUTPUT (power output
+from the module), and unmarked (power flowing to/from a storage element,
+eg. battery). Battery is viewed as a power source, so current flowing to
+the battery (charging it) is shown negative.
+
 
 Attributes/properties
 ~~~~~~~~~~~~~~~~~~~~~
-- 
2.20.1


  parent reply	other threads:[~2020-05-01 15:11 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-01 15:11 [PATCH v4 0/4] power: supply: core: extend with new properties Michał Mirosław
2020-05-01 15:11 ` [PATCH v4 1/4] power: supply: core: tabularize HWMON temperature labels Michał Mirosław
2020-05-02 22:24   ` Sebastian Reichel
2020-05-01 15:11 ` [PATCH v4 2/4] power: supply: core: add input voltage/current measurements Michał Mirosław
2020-05-02 22:23   ` Sebastian Reichel
2020-05-02 22:45     ` Michał Mirosław
2020-05-02 23:11       ` Michał Mirosław
2020-05-03  0:09         ` Sebastian Reichel
2020-05-01 15:11 ` Michał Mirosław [this message]
2020-05-01 15:11 ` [PATCH v4 3/4] power: supply: core: add output voltage measurements Michał Mirosław

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