From: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
To: matti.vaittinen@fi.rohmeurope.com, mazziesaccount@gmail.com
Cc: "Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
"Linus Walleij" <linus.walleij@linaro.org>,
"Mikko Mutanen" <mikko.mutanen@fi.rohmeurope.com>,
"Markus Laine" <markus.laine@fi.rohmeurope.com>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Andy Shevchenko" <andriy.shevchenko@linux.intel.com>,
"Andy Shevchenko" <andy.shevchenko@gmail.com>,
"Ard Biesheuvel" <ardb@kernel.org>,
"Borislav Petkov" <bp@suse.de>,
"Brendan Higgins" <brendanhiggins@google.com>,
"Changbin Du" <changbin.du@intel.com>,
"Dan Williams" <dan.j.williams@intel.com>,
"David Gow" <davidgow@google.com>,
"David S. Miller" <davem@davemloft.net>,
devicetree@vger.kernel.org, "Gary Hook" <Gary.Hook@amd.com>,
"Herbert Xu" <herbert@gondor.apana.org.au>,
"Krzysztof Kozlowski" <krzk@kernel.org>,
linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
"Mark Rutland" <mark.rutland@arm.com>,
"Masahiro Yamada" <yamada.masahiro@socionext.com>,
"Masami Hiramatsu" <mhiramat@kernel.org>,
"Matti Vaittinen" <matti.vaittinen@fi.rohmeurope.com>,
"Mikhail Zaslonko" <zaslonko@linux.ibm.com>,
"Randy Dunlap" <rdunlap@infradead.org>,
"Rob Herring" <robh+dt@kernel.org>,
"Sebastian Reichel" <sre@kernel.org>,
"Shuah Khan" <skhan@linuxfoundation.org>,
"Tal Gilboa" <talgi@mellanox.com>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Uwe Kleine-König" <uwe@kleine-koenig.org>,
"Vincenzo Frascino" <vincenzo.frascino@arm.com>,
"Vladimir Oltean" <olteanv@gmail.com>,
"Mark Brown" <broonie@kernel.org>,
"Liam Girdwood" <lgirdwood@gmail.com>
Subject: [PATCH v6 01/10] dt-bindings: battery: add new battery parameters
Date: Tue, 24 Mar 2020 10:27:39 +0200 [thread overview]
Message-ID: <ee741f391911a4e7c272ed86955ccd1e81ad236f.1584977512.git.matti.vaittinen@fi.rohmeurope.com> (raw)
In-Reply-To: <cover.1584977512.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>
---
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 =]
next prev parent reply other threads:[~2020-03-24 8:27 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-24 8:27 [PATCH v6 00/10] Support ROHM BD99954 charger IC Matti Vaittinen
2020-03-24 8:27 ` Matti Vaittinen [this message]
2020-03-24 8:28 ` [PATCH v6 02/10] dt_bindings: ROHM BD99954 Charger Matti Vaittinen
2020-03-24 8:29 ` [PATCH v6 03/10] lib: add linear ranges helpers Matti Vaittinen
2020-03-24 14:16 ` Mark Brown
2020-03-27 19:34 ` Linus Walleij
2020-03-24 8:29 ` [PATCH v6 04/10] lib/test_linear_ranges: add a test for the 'linear_ranges' Matti Vaittinen
2020-03-24 9:14 ` Andy Shevchenko
2020-03-24 9:51 ` Vaittinen, Matti
2020-03-24 8:30 ` [PATCH v6 05/10] power: supply: bd70528: rename linear_range to avoid collision Matti Vaittinen
2020-03-24 8:30 ` [PATCH v6 06/10] regulator: use linear_ranges helper Matti Vaittinen
2020-03-24 14:24 ` Mark Brown
2020-03-25 6:58 ` Vaittinen, Matti
2020-03-25 11:34 ` Mark Brown
2020-03-25 11:46 ` Vaittinen, Matti
2020-03-24 16:41 ` Charles Keepax
2020-03-24 16:48 ` Adam Thomson
2020-03-24 8:31 ` [PATCH v6 07/10] power: supply: bd70528: use linear ranges Matti Vaittinen
2020-03-24 8:31 ` [PATCH v6 08/10] power: supply: add battery parameters Matti Vaittinen
2020-03-24 8:32 ` [PATCH v6 09/10] power: supply: Support ROHM bd99954 charger Matti Vaittinen
2020-03-24 9:50 ` Andy Shevchenko
2020-03-24 9:51 ` Andy Shevchenko
2020-03-24 10:30 ` Vaittinen, Matti
2020-03-24 10:35 ` Andy Shevchenko
2020-03-25 11:36 ` Vaittinen, Matti
2020-03-25 12:09 ` andriy.shevchenko
2020-03-25 13:00 ` Vaittinen, Matti
2020-03-25 13:20 ` andriy.shevchenko
2020-03-25 13:21 ` andriy.shevchenko
2020-03-25 13:47 ` Vaittinen, Matti
2020-03-24 10:53 ` Vaittinen, Matti
2020-03-24 11:56 ` andriy.shevchenko
2020-03-25 10:14 ` Vaittinen, Matti
2020-03-25 12:05 ` andriy.shevchenko
2020-03-25 9:47 ` Vaittinen, Matti
2020-03-24 8:32 ` [PATCH v6 10/10] power: supply: Fix Kconfig help text indentiation Matti Vaittinen
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