From mboxrd@z Thu Jan 1 00:00:00 1970 From: Liam Breck Subject: [PATCH v9 0/8] devicetree battery support and client bq27xxx_battery Date: Sun, 5 Mar 2017 23:25:31 -0800 Message-ID: <20170306072539.980-1-liam@networkimprov.net> Return-path: Received: from mail-pg0-f66.google.com ([74.125.83.66]:35577 "EHLO mail-pg0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752557AbdCFHeb (ORCPT ); Mon, 6 Mar 2017 02:34:31 -0500 Received: by mail-pg0-f66.google.com with SMTP id 187so5323940pgb.2 for ; Sun, 05 Mar 2017 23:34:30 -0800 (PST) Sender: linux-pm-owner@vger.kernel.org List-Id: linux-pm@vger.kernel.org To: Sebastian Reichel Cc: "Andrew F. Davis" , linux-pm@vger.kernel.org, Matt Ranostay Overview: * new devicetree battery node specifies static battery data * fuel gauge and charger nodes shall use monitored-battery=<&battery_node> * new power_supply_get_battery_info() reads battery data from devicetree * new struct power_supply_battery_info provides battery data to drivers * drivers surface battery data in sysfs via related power_supply_prop_* fields * bq27xxx driver calls the above and writes battery data to RAM/NVM for params essential to correct operation: energy-full-design-microwatt-hours, charge-full-design-microamp-hours, voltage-min-design-microvolt Changes in v9: bq27xxx_battery: * fix set_cfgupdate() * support bq27500, 545, 421; defer others * bq27441, 621 use enum BQ27425 instead of BQ27421 * drop print_dm_blocks() patch * minor polishing Documentation/devicetree/.../battery.txt: * describe rationale for enum power_supply_property names Changes in v8: bq27xxx_battery: * wait on flag after set_cfgupdate & soft_reset * drop print_config(), report status in update_dm_block() * clarify error messages * cleanup from Andrew's feedback; minor polishing Changes in v7: bq27xxx_battery: * support chips where terminate_voltage & design_* live in separate blocks * draft support for 421, 441, 621 chips * new patch to log chip memory fields * report bus I/O errors; return error code in bq27xxx_battery_i2c * verify checksum in read_dm_block() * use set_cfgupdate only if chip provides it, soft_reset on I/O error * block_data_control=0 only in write_dm_block() * note toxic code from TI bqtool in write_dm_block() * lots of functionally neutral polishing Documentation/devicetree/.../battery.txt: * mention power_supply_get_battery_info() Changes in v6: * Documentation/devictree/... fixes * bq27xxx_battery: clarify names * bq27xxx_battery: verify that selected registers are supported * bq27xxx_battery: allocate NVM buffer on stack * bq27xxx_battery_i2c: fix return code of bulk_read Changes in v5: * incorporate feedback into Documentation/devicetree/.../battery.txt * use power_supply_prop_* names in devicetree and power_supply_battery_info * default fields to -EINVAL in power_supply_battery_info * power_supply_get_battery_info() always looks for "monitored-battery" * power_supply_get_battery_info() emits a warning if !psy->of_node * squash patches for power_supply_battery_info * bq27xxx_battery: check power_supply_battery_info values * bq27xxx_battery: note missing power_supply_prop_* features * bq27xxx_battery: new patch for access methods Changes in v4: * add "fixed-battery" compatible field to be be more consistant with devicetree Changes in v3: * split i2c changes into respective patches * add documentation for battery information for fuel gauge * rebased documentation patches on change on the list * abstracted the battery configuration for the state machine to an generic struct and platform data access function Changes in v2: * add documentation for uWh and uAh property units * change devicetree entries to match new property units Liam (4): devicetree: power: Add battery.txt devicetree: power: bq27xxx: Add monitored-battery documentation power: power_supply: Add power_supply_battery_info and API power: bq27xxx_battery: Add power_supply_battery_info support Matt Ranostay (4): devicetree: property-units: Add uWh and uAh units power: bq27xxx_battery: Define access methods to write chip registers power: bq27xxx_battery: Move BQ27421 chip id to its own group power: bq27xxx_battery_i2c: Add I2C bulk read/write functions .../devicetree/bindings/power/supply/battery.txt | 45 ++ .../devicetree/bindings/power/supply/bq27xxx.txt | 11 +- .../devicetree/bindings/property-units.txt | 2 + drivers/power/supply/bq27xxx_battery.c | 506 ++++++++++++++++++++- drivers/power/supply/bq27xxx_battery_i2c.c | 88 +++- drivers/power/supply/power_supply_core.c | 40 ++ include/linux/power/bq27xxx_battery.h | 6 +- include/linux/power_supply.h | 18 + 8 files changed, 707 insertions(+), 9 deletions(-) create mode 100644 Documentation/devicetree/bindings/power/supply/battery.txt -- 2.9.3