From: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
To: matti.vaittinen@fi.rohmeurope.com, mazziesaccount@gmail.com
Cc: Mark Rutland <mark.rutland@arm.com>,
Andrei Stefanescu <andrei.stefanescu@microchip.com>,
Heiko Stuebner <heiko@sntech.de>,
"Rafael J. Wysocki" <rafael@kernel.org>,
Tony Lindgren <tony@atomide.com>,
Linus Walleij <linus.walleij@linaro.org>,
Brendan Higgins <brendanhiggins@google.com>,
Sebastian Reichel <sre@kernel.org>,
Andreas Kemnade <andreas@kemnade.info>,
"Angelo G. Del Regno" <kholk11@gmail.com>,
Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>,
linux-samsung-soc@vger.kernel.org,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Axel Lin <axel.lin@ingics.com>,
Gregory CLEMENT <gregory.clement@bootlin.com>,
linux-pm@vger.kernel.org, Krzysztof Kozlowski <krzk@kernel.org>,
Markus Reichl <m.reichl@fivetechno.de>,
Bartosz Golaszewski <bgolaszewski@baylibre.com>,
Chen-Yu Tsai <wens@csie.org>, Andy Gross <agross@kernel.org>,
markus.laine@fi.rohmeurope.com,
Adam Thomson <Adam.Thomson.Opensource@diasemi.com>,
devicetree@vger.kernel.org,
Charles Keepax <ckeepax@opensource.cirrus.com>,
linux-omap@vger.kernel.org,
Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
linux-arm-msm@vger.kernel.org,
Richard Fitzgerald <rf@opensource.cirrus.com>,
Mark Brown <broonie@kernel.org>,
linux-mediatek@lists.infradead.org,
Matthias Brugger <matthias.bgg@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
linux-arm-kernel@lists.infradead.org,
Support Opensource <support.opensource@diasemi.com>,
Baolin Wang <baolin.wang@linaro.org>,
Sangbeom Kim <sbkim73@samsung.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Randy Dunlap <rdunlap@infradead.org>,
Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>,
Liam Girdwood <lgirdwood@gmail.com>,
linux-kernel@vger.kernel.org, mikko.mutanen@fi.rohmeurope.com,
Vinod Koul <vkoul@kernel.org>, Rob Herring <robh+dt@kernel.org>,
patches@opensource.cirrus.com
Subject: [PATCH v8 01/10] dt-bindings: battery: add new battery parameters
Date: Fri, 3 Apr 2020 11:41:11 +0300 [thread overview]
Message-ID: <8827238b51029886dea56ce3141b216361a3f299.1585902279.git.matti.vaittinen@fi.rohmeurope.com> (raw)
In-Reply-To: <cover.1585902279.git.matti.vaittinen@fi.rohmeurope.com>
Add:
- trickle-charge-current-microamp:
Some chargers have 3 charging stages. First one when battery is almost
empty is often called as trickle-charge. Last state when battery has been
"woken up" is usually called as fast-charge. In addition to this some
chargers have a 'middle state' which ROHM BD99954 data-sheet describes as
pre-charge. Some batteries can benefit from this 3-phase charging
[citation needed].
Introduce trickle-charge-current-microamp so that batteries can give
charging current limit for all three states.
- precharge-upper-limit-microvolt:
When battery voltage has reached certain limit we change from
trickle-charge to next charging state (pre-charge for BD99954). Allow
battery to specify this limit.
- re-charge-voltage-microvolt:
Allow giving a battery specific voltage limit for chargers which can
automatically re-start charging when battery has discharghed down to
this limit.
- over-voltage-threshold-microvolt
Allow specifying voltage threshold after which the battery is assumed to
be faulty.
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Reviewed-by: Rob Herring <robh@kernel.org>
---
No changes since v7
Documentation/devicetree/bindings/power/supply/battery.txt | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/Documentation/devicetree/bindings/power/supply/battery.txt b/Documentation/devicetree/bindings/power/supply/battery.txt
index 3049cf88bdcf..5e29595edd74 100644
--- a/Documentation/devicetree/bindings/power/supply/battery.txt
+++ b/Documentation/devicetree/bindings/power/supply/battery.txt
@@ -11,15 +11,21 @@ different type. This prevents unpredictable, potentially harmful,
behavior should a replacement that changes the battery type occur
without a corresponding update to the dtb.
+Please note that not all charger drivers respect all of the properties.
+
Required Properties:
- compatible: Must be "simple-battery"
Optional Properties:
+ - over-voltage-threshold-microvolt: battery over-voltage limit
+ - re-charge-voltage-microvolt: limit to automatically start charging again
- voltage-min-design-microvolt: drained battery voltage
- voltage-max-design-microvolt: fully charged battery voltage
- energy-full-design-microwatt-hours: battery design energy
- charge-full-design-microamp-hours: battery design capacity
+ - trickle-charge-current-microamp: current for trickle-charge phase
- precharge-current-microamp: current for pre-charge phase
+ - precharge-upper-limit-microvolt: limit when to change to constant charging
- charge-term-current-microamp: current for charge termination phase
- constant-charge-current-max-microamp: maximum constant input current
- constant-charge-voltage-max-microvolt: maximum constant input voltage
--
2.21.0
--
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND
~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =]
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next prev parent reply other threads:[~2020-04-03 8:41 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-03 8:36 [PATCH v8 00/10] Support ROHM BD99954 charger IC Matti Vaittinen
2020-04-03 8:41 ` Matti Vaittinen [this message]
2020-04-05 3:28 ` [PATCH v8 01/10] dt-bindings: battery: add new battery parameters Sebastian Reichel
2020-04-03 8:45 ` [PATCH v8 02/10] dt_bindings: ROHM BD99954 Charger Matti Vaittinen
2020-04-05 3:30 ` Sebastian Reichel
2020-04-03 8:45 ` [PATCH v8 03/10] lib: add linear ranges helpers Matti Vaittinen
2020-04-03 9:37 ` Andy Shevchenko
2020-04-03 8:46 ` [PATCH v8 04/10] lib/test_linear_ranges: add a test for the 'linear_ranges' Matti Vaittinen
2020-04-03 8:46 ` [PATCH v8 05/10] power: supply: bd70528: rename linear_range to avoid collision Matti Vaittinen
2020-04-05 3:33 ` Sebastian Reichel
2020-04-06 9:21 ` Vaittinen, Matti
2020-04-03 8:46 ` [PATCH v8 06/10] regulator: use linear_ranges helper Matti Vaittinen
2020-04-03 8:47 ` [PATCH v8 07/10] power: supply: bd70528: use linear ranges Matti Vaittinen
2020-04-05 3:37 ` Sebastian Reichel
2020-04-03 8:47 ` [PATCH v8 08/10] power: supply: add battery parameters Matti Vaittinen
2020-04-05 3:35 ` Sebastian Reichel
2020-04-03 8:48 ` [PATCH v8 09/10] power: supply: Support ROHM bd99954 charger Matti Vaittinen
2020-04-03 9:41 ` Andy Shevchenko
2020-04-05 3:22 ` Sebastian Reichel
2020-04-06 9:59 ` Vaittinen, Matti
2020-04-03 8:48 ` [PATCH v8 10/10] power: supply: Fix Kconfig help text indentiation Matti Vaittinen
2020-04-05 3:35 ` Sebastian Reichel
2020-04-03 10:07 ` [PATCH v8 00/10] Support ROHM BD99954 charger IC Vaittinen, Matti
2020-04-03 11:02 ` andriy.shevchenko
2020-04-03 11:13 ` Vaittinen, Matti
2020-04-03 11:50 ` andriy.shevchenko
2020-04-03 11:51 ` andriy.shevchenko
2020-04-03 12:01 ` Mark Brown
2020-04-03 12:30 ` Vaittinen, Matti
2020-04-03 12:31 ` Mark Brown
2020-04-05 3:27 ` Sebastian Reichel
2020-04-06 5:22 ` Vaittinen, Matti
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