Vincent Palatin 2cf4d02acd keep ADC reference voltage on between successive reads ...

To decrease the amount of time needed for PMU ADC reads, add the option
to keep the ADC reference voltage enable as its stabilization time is
the longest pole.
Also set the stabilization time to 10ms as the max defined in the
datasheet.

Signed-off-by: Vincent Palatin <vpalatin@chromium.org>

BRANCH=none
BUG=chrome-os-partner:17997
TEST=on Spring, measure EC_CMD_POWER_INFO latency and see it going from
49ms to 18ms.

Change-Id: I7ed20bcddab165250108eb9f768539b19fa251de
Reviewed-on: https://gerrit.chromium.org/gerrit/44008
Reviewed-by: Vic Yang <victoryang@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>

2013-02-25 22:22:34 -08:00

..

battery_bq20z453.c

Support battery cut-off mechanism for factory.

2012-08-28 04:39:56 -07:00

battery_link.c

link: Don't force battery to request current

2012-10-24 18:48:55 -07:00

battery_precharge.c

Use SECOND and MSEC constants

2012-10-29 16:52:49 -07:00

build.mk

spring: Add LP5562 driver

2013-01-21 20:25:47 -08:00

charge_state.c

Add console command to fake battery state of charge

2013-02-12 18:10:14 -08:00

charger_bq24725.c

Clean up charger code

2012-10-24 10:09:20 -07:00

console_output.c

Rename power_button module to switch

2012-10-30 14:50:03 -07:00

console.c

Clean up uart buffering code

2012-10-26 09:49:38 -07:00

eoption.c

Clean up a few modules in common/

2012-10-26 09:49:38 -07:00

firmware_image.lds.S

Remove firmware B

2012-07-17 13:11:44 -07:00

firmware_image.S

Remove firmware B

2012-07-17 13:11:44 -07:00

flash_common.c

Add more paranoia for flash write protect

2012-12-10 15:42:21 -08:00

fmap.c

Clean up fmap.c

2012-10-24 19:07:20 -07:00

gaia_power.c

Use SECOND and MSEC constants

2012-10-29 16:52:49 -07:00

gpio_commands.c

Clean up GPIO module

2012-10-25 11:24:02 -07:00

hooks.c

Add per-second hook

2012-10-30 15:33:25 -07:00

host_command.c

Clean up host command module

2012-10-25 11:23:59 -07:00

host_event_commands.c

Change host command params/response pointers to void *

2012-07-26 16:25:34 -07:00

i2c_commands.c

Change host command params/response pointers to void *

2012-07-26 16:25:34 -07:00

i8042.c

Clean up i8042 module

2012-10-23 17:32:01 -07:00

ir357x.c

Hook functions no longer return values

2012-10-23 16:49:29 -07:00

keyboard_test.c

stm32: Implement keyscan test infrastructure

2012-10-31 17:21:00 -07:00

keyboard.c

Change the I8042_CMD_ENABLE (0xf4) for keystroke (not for KBC).

2013-02-23 17:34:20 -08:00

lightbar.c

Add AP userspace scripts to tweak lightbar colors

2012-12-20 10:01:18 -08:00

lp5562.c

Tweak lp5562 driver interface

2013-02-05 09:45:44 -08:00

main.c

Watchdog is reloaded by HOOK_TICK, not its own task

2012-10-30 15:33:24 -07:00

memory_commands.c

Clean up a few modules in common/

2012-10-26 09:49:38 -07:00

mock_charger.c

Add a test of charging state machine

2012-07-08 20:25:17 -07:00

mock_i8042.c

Use SECOND and MSEC constants

2012-10-29 16:52:49 -07:00

mock_smart_battery_stub.c

Add a test of charging state machine

2012-07-08 20:25:17 -07:00

mock_temp_sensor.c

Use SECOND and MSEC constants

2012-10-29 16:52:49 -07:00

mock_x86_power.c

Move reset/overheat/shutdown funcs to chipset interface

2012-11-01 12:45:28 -07:00

pmu_tps65090_charger.c

spring: minimize the window that loses TSU6721 interrupt

2013-02-25 18:59:56 -08:00

pmu_tps65090.c

keep ADC reference voltage on between successive reads

2013-02-25 22:22:34 -08:00

port80.c

Clean up a few modules in common/

2012-10-26 09:49:38 -07:00

power_led.c

Clean up LED and onewire modules

2012-10-25 14:12:11 -07:00

printf.c

Clean up printf module

2012-10-25 14:12:10 -07:00

pstore_commands.c

Change host command params/response pointers to void *

2012-07-26 16:25:34 -07:00

queue.c

Refactor the i8042 module to be thread-safe.

2012-06-07 20:48:51 -07:00

sha256.c

Clean up vboot hash support

2012-10-25 17:03:44 -07:00

shared_mem.c

Tidy shared memory module

2012-08-09 17:40:37 -07:00

smart_battery_stub.c

Stub smart battery read/write functions

2012-06-27 03:22:17 -07:00

smart_battery.c

Add a pass-through for the smart battery

2013-01-19 10:59:20 -08:00

system_common.c

assert ENTERING_RW only if it exists

2013-02-19 07:28:17 -08:00

temp_sensor.c

Switch temp sensor polling to use hooks instead of task

2012-11-01 12:45:22 -07:00

thermal.c

Move reset/overheat/shutdown funcs to chipset interface

2012-11-01 12:45:28 -07:00

tmp006.c

Handle bus errors on thermal I2C bus

2012-11-26 14:49:49 -08:00

tsu6721.c

Allow TSU6721 auto mode under any condition

2013-02-25 22:22:34 -08:00

uart_buffering.c

Consolidate emergency debug output

2012-10-29 10:36:05 -07:00

usb_charge.c

Clean up USB charging module

2012-10-26 09:49:37 -07:00

util.c

Refactor flash module

2012-07-23 23:30:33 -07:00

vboot_hash.c

Invalidate hash if flash operation changes the hashed region

2012-12-10 15:14:38 -08:00

version.c

update versioning information stored in the EC

2012-03-02 16:46:26 +00:00

x86_power.c

link: If a required power rail drops, shut down

2013-02-12 10:35:12 -08:00