[0/6,v2] AB8500 charging, the final steps

Message ID	20220213000703.772673-1-linus.walleij@linaro.org
Headers	show Return-Path: <linux-pm-owner@kernel.org> From: Linus Walleij <linus.walleij@linaro.org> To: Sebastian Reichel <sre@kernel.org>, Marcus Cooper <codekipper@gmail.com> Cc: linux-pm@vger.kernel.org, Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>, Linus Walleij <linus.walleij@linaro.org> Subject: [PATCH 0/6 v2] AB8500 charging, the final steps Date: Sun, 13 Feb 2022 01:06:57 +0100 Message-Id: <20220213000703.772673-1-linus.walleij@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk
Series	AB8500 charging, the final steps \| expand [0/6,v2] AB8500 charging, the final steps [1/6,v2] power: supply: ab8500: Standardize maintenance charging [2/6,v2] power: supply: ab8500: Standardize alert mode charging [3/6,v2] power: supply: ab8500: Standardize BTI resistance [4/6,v2] power: supply: Support VBAT-to-Ri lookup tables [5/6,v2] power: supply: ab8500_fg: Use VBAT-to-Ri if possible [6/6,v2] power: supply: Static data for Samsung batteries

Message ID

20220213000703.772673-1-linus.walleij@linaro.org

Headers

From: Linus Walleij <linus.walleij@linaro.org>
To: Sebastian Reichel <sre@kernel.org>,
        Marcus Cooper <codekipper@gmail.com>
Cc: linux-pm@vger.kernel.org,
        Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>,
        Linus Walleij <linus.walleij@linaro.org>
Subject: [PATCH 0/6 v2] AB8500 charging, the final steps
Date: Sun, 13 Feb 2022 01:06:57 +0100
Message-Id: <20220213000703.772673-1-linus.walleij@linaro.org>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

Series

AB8500 charging, the final steps | expand

Message

Linus Walleij Feb. 13, 2022, 12:06 a.m. UTC

This makes AB8500 charge the Samsung batteries on the following
mobile phones:

Samsung Galaxy Ace 2
Samsung Galaxy S Advance
Samsung Galaxy S III mini
Samsung Galaxy Xcover 2
Samsung Galaxy Beam
Samsung Galaxy Exhibit
Samsung Galaxy Amp

The steps are as follows:

- Add charging setting for maintenance charging in two steps.
  After this we fall back to discharging to the restart threshold.

- Add optional alert mode charging when the battery is alert warm
  or cold, so as to mitigate the condition. I suspect mostly the
  battery gets alert warm and then this will pull down the charging
  current a bit.

- Add BTI (Battery Type Indicator) resistance fields.

- Add VBAT-to-Ri internal resistance look-up and interpolation.
  Samsung seem to use this on all the Samsung SDI battery
  charging code I have seen.

- Add the static data for all the Samsung batteries and detect
  them from compatible property.

All of this is enabled in the AB8500 simultaneously so for each
new feature a user is introduced.

ChangeLog v1->v2:
- Address review comments
- Split alert charging mode in one for low resp high temp
- Fix build errors with Samsung static data

Linus Walleij (6):
  power: supply: ab8500: Standardize maintenance charging
  power: supply: ab8500: Standardize alert mode charging
  power: supply: ab8500: Standardize BTI resistance
  power: supply: Support VBAT-to-Ri lookup tables
  power: supply: ab8500_fg: Use VBAT-to-Ri if possible
  power: supply: Static data for Samsung batteries

 drivers/power/supply/Kconfig               |   6 +
 drivers/power/supply/Makefile              |   1 +
 drivers/power/supply/ab8500-bm.h           |  30 -
 drivers/power/supply/ab8500_bmdata.c       |  52 +-
 drivers/power/supply/ab8500_btemp.c        |  14 +-
 drivers/power/supply/ab8500_chargalg.c     |  89 ++-
 drivers/power/supply/ab8500_fg.c           |  35 +-
 drivers/power/supply/power_supply_core.c   | 136 +++-
 drivers/power/supply/samsung-sdi-battery.c | 686 +++++++++++++++++++++
 drivers/power/supply/samsung-sdi-battery.h |  13 +
 include/linux/power_supply.h               | 207 ++++++-
 11 files changed, 1163 insertions(+), 106 deletions(-)
 create mode 100644 drivers/power/supply/samsung-sdi-battery.c
 create mode 100644 drivers/power/supply/samsung-sdi-battery.h