module_param(bool) used to counter-intuitively take an int. In
fddd5201 (mid-2009) we allowed bool or int/unsigned int using a messy
trick.
It's time to remove the int/unsigned int option. For this version
it'll simply give a warning, but it'll break next kernel version.
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* git://git.infradead.org/battery-2.6: (68 commits)
power_supply: Mark da9052 driver as broken
power_supply: Drop usage of nowarn variant of sysfs_create_link()
s3c_adc_battery: Average over more than one adc sample
power_supply: Add DA9052 battery driver
isp1704_charger: Fix missing check
jz4740-battery: Fix signedness bug
power_supply: Assume mains power by default
sbs-battery: Fix devicetree match table
ARM: rx51: Add bq27200 i2c board info
sbs-battery: Change power supply name
devicetree-bindings: Propagate bq20z75->sbs rename to dt bindings
devicetree-bindings: Add vendor entry for Smart Battery Systems
sbs-battery: Rename internals to new name
bq20z75: Rename to sbs-battery
wm97xx_battery: Use DEFINE_MUTEX() for work_lock
max8997_charger: Remove duplicate module.h
lp8727_charger: Some minor fixes for the header
lp8727_charger: Add header file
power_supply: Convert drivers/power/* to use module_platform_driver()
power_supply: Add "unknown" in power supply type
...
There are some problems with MFD part of this driver, so the
driver fails to build:
drivers/power/da9052-battery.c: In function 'da9052_bat_read_volt':
drivers/power/da9052-battery.c:293:2: error: implicit declaration of function 'da9052_adc_manual_read' [-Werror=implicit-function-declaration]
drivers/power/da9052-battery.c: In function 'da9052_bat_check_presence':
drivers/power/da9052-battery.c:306:2: error: implicit declaration of function 'da9052_adc_read_temp' [-Werror=implicit-function-declaration]
drivers/power/da9052-battery.c: In function 'da9052_determine_vc_tbl_index':
drivers/power/da9052-battery.c:348:1: warning: control reaches end of non-void function [-Wreturn-type]
cc1: some warnings being treated as errors
The fix for MFD part will probably go post -rc1 (or in the next merge
window), so let's disable the driver for now.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
The function is not exported to modules, plus we do want to catch anyone
who tries to create complex hierarchy (in that case we'd need to change
'powers' symlink to a directory, probably under a different name to not
break ABI).
This patch fixes the following build error:
ERROR: "sysfs_create_link_nowarn" [drivers/power/power_supply.ko] undefined!
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
Some sources for adc battery information provide only inaccurate results
where the read value differs from the real value with positive and negative
offsets. For such sources it can be more accurate to collect two or more
value sample and use the average of all collected values.
This patch adds pdata options volt_samples, current_samples and
backup_volt_samples to specifiy the number of samples to collect,
reads the specified number of samples and calculates the average of those.
For unset sample-number-values a default of 1 is assumed.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
Driver for DA9052 battery charger. This driver depends on DA9052 MFD core
dirver for definitions and methods.
This patch is functionally tested on Samsung SMDKV6410.
Signed-off-by: David Dajun Chen <dchen@diasemi.com>
Signed-off-by: Ashish Jangam <ashish.jangam@kpitcummins.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
wait_for_completion_interruptible_timeout() may return negative value.
In this case, checking if (t > 0) will return true if t is unsigned.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
If no power class device is found in power_supply_is_system_supplied(),
the function currently returns 0, which basically means that the system
is supposed to be running on battery. In practice, mobile devices tend
to always implement at least one power class device and more often two
(battery and AC adapter). Systems with no registered power class
devices are more likely to be desktop systems, where the system is
always powered by mains.
So, change the default return value of
power_supply_is_system_supplied() from 0 (running on battery) to 1
(running on mains.)
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
The power supply name used to be fixed as "battery". This change allows
for multiple batteries by generating the name rather than using a fixed
value.
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
Now that this driver is named more generally, this change updates
the internal variables, defines and functions to use this new name.
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
This driver for the bq20z75 implemented the register spec defined
by the SBS standard. As this is not unique to this the TI part this
was originally written for, we can generalize this driver to
show its support for any SBS compliant battery.
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
work_lock can be initialized automatically with
DEFINE_MUTEX() rather than explicitly calling mutex_init().
This patch also removes an unused bat_lock mutex.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
For the default value of power supply type, "unknown" is added.
With default prop value, supply type property can be displayed
as default - "Unknown".
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
1. Useless braces were omitted
2. Useless void casts were omitted
3. module exit name changed
lp8727_chg_exit -> lp8727_exit
4. Pointer coding style changes
no space between pointer('*') and pointer name
ex) u8 * data -> u8 *data
5. Author information change : email and additional author
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
lp8727 i2c r/w functions are based on SMBUS I2C BLOCK. So the driver needs to
check whether i2c bus supports this functionality or not.
Signed-off-by: Woogyom Kim <milo.kim@ti.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
National Semiconductor LP8727 is the battery charger with Micro/Mini
USB interface. This IC includes below functions:
- I2C interface for accessing user registers
- Single input Li-Ion battery charger
- Charger input ID detection from Micro/Mini USB
- Multiplexing switches on USB, UART
Signed-off-by: Woogyom Kim <milo.kim@ti.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
Because battery health monitoring should be done even when suspended,
it needs to wake up and suspend periodically. Thus, userspace battery
monitoring may incur too much overhead; every device and task is woken
up periodically. Charger Manager uses suspend-again to provide
in-suspend monitoring.
This patch allows to monitor battery health in-suspend state.
Signed-off-by: Donggeun Kim <dg77.kim@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
