Commit graph

15 commits

Author SHA1 Message Date
Kim, Milo
74727c5715 lp8727_charger: Use devm_kzalloc()
Use devm_kzalloc() rather than kzalloc()/kfree() to make
allocating/freeing the private data simpler.

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
2012-09-20 17:51:57 -07:00
Fengguang Wu
7c577c0d1e lp8727_charger: Use IRQF_ONESHOT
Generated by: scripts/coccinelle/misc/irqf_oneshot.cocci

ERROR: Threaded IRQ with no primary handler requested without IRQF_ONESHOT

Make sure threaded IRQs without a primary handler are always request
with IRQF_ONESHOT

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
2012-09-20 15:39:14 -07:00
Devendra Naga
6297b5e54b lp8727_charger: Unregister power supply at error path of lp8727_register_psy
if usb power supply registration fails,
	we wont unregister the ac power supply
if battery power supply registration fails,
	we wont unregister the usb, and ac supply,

take care of those things and also no need of goto -err_mem: at the fail case of
kzalloc simply can have return -ENOMEM

Signed-off-by: Devendra Naga <develkernel412222@gmail.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
2012-08-22 19:14:09 -07:00
Kim, Milo
1aebb09731 lp8727_charger: Move header file into platform_data directory
The lp8727 header can be used only in the platform side, so it can be
moved to the platform_data directory.

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
2012-07-14 01:14:35 -07:00
Axel Lin
5ff92e7ab3 power_supply: Convert i2c drivers to module_i2c_driver
Factor out some boilerplate code for i2c driver registration
into module_i2c_driver.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: Woogyom Kim <milo.kim@ti.com>
Cc: Daniel Jeong <daniel.jeong@ti.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
Cc: Peter Edwards <sweetlilmre@gmail.com>
Acked-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Acked-by: Rhyland Klein <rklein@nvidia.com>
Acked-by: Ryan Mallon <rmallon@gmail.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
2012-03-26 20:41:22 +04:00
Axel Lin
e2c5f7db78 lp8727_charger: Add MODULE_DEVICE_TABLE
Add MODULE_DEVICE_TABLE to setup modalias for lp8727. Allows auto
modprobing.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
2012-03-26 20:41:21 +04:00
Kim, Milo
f7bae49aa1 lp8727_charger: Correct typos on the comment
intergrated charger -> integrated charger
    ^

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
2012-03-26 20:40:59 +04:00
Kim, Milo
7336880e3d lp8727_charger: Fix wrong code style
Definition of STATUS2
: remove space before tabs.

Return code of lp8727_is_dedicated_charger(), lp8727_is_usb_charger()
: remove parentheses when return is not a function.

MODULE_AUTHOR section
: remove space at the start of a line.

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
2012-03-26 20:40:56 +04:00
Kim, Milo
27aefa3b7d lp8727_charger: Change i2c functions
On writing single byte via i2c, use i2c_smbus_write_byte_data()
rather than i2c_smbus_write_i2c_block_data().

Name changes :
lp8727_i2c_read() -> lp8727_read_bytes()
lp8727_i2c_write() -> removed
lp8727_i2c_read_byte() -> lp8727_read_byte()
lp8727_i2c_write_byte() -> lp8727_write_byte()

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
2012-03-26 20:40:55 +04:00
Kim, Milo
7da6334e73 lp8727_charger: Add error check routine on probe()
Add error checking on initializing registers and interrupt handler.

Initializing registers - lp8727_init_device()
: check i2c error during probing the driver.

Initializing interrupt handler - lp8727_intr_config()
: check an error on creating the irq thread.

If an error occurs on probing lp8727 driver, allocated lp8727 driver memory is freed.

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
2012-03-26 20:40:54 +04:00
Kim, Milo
e39b828f53 lp8727_charger: Add company name and description
Add 'Texas Instruments' because TI acquired National semiconductor at 2011.
And the driver information is added in the header file.

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
2012-03-26 20:40:52 +04:00
Axel Lin
455a0e2cd8 lp8727_charger: Add terminating entry for i2c_device_id table
The i2c_device_id table is supposed to be zero-terminated.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2012-02-01 21:34:26 +04:00
Kim, Milo
ce09affc59 lp8727_charger: Coding style changes
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>
2012-01-04 09:05:51 +04:00
Kim, Milo
998a8e7a72 lp8727_charger: Add supported i2c functionality check routine
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>
2012-01-04 08:34:20 +04:00
Woogyom Kim
2165c8a45b power_supply: Add LP8727 charger driver
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>
2012-01-04 08:29:43 +04:00