diff options
| author | Vic Yang <victoryang@chromium.org> | 2012-12-22 15:39:15 +0800 |
|---|---|---|
| committer | Gerrit <chrome-bot@google.com> | 2012-12-22 01:54:35 -0800 |
| commit | d4fc07c1c2a50c3ef1fe8d06001c0523793c4be3 (patch) | |
| tree | b0d93bc03d9d82f7d6ee0190392983c4a11e66af | |
| parent | 4d7820f4ad5ab746d5d07e72d10251a16cb2953a (diff) | |
| download | chrome-ec-d4fc07c1c2a50c3ef1fe8d06001c0523793c4be3.tar.gz | |
spring: Setting for USB voltage sense ADC
This changes ID pin sensing to VBUS sensing.
BUG=chrome-os-partner:14319
TEST=Build success.
BRANCH=none
Change-Id: I179f7ab891f83d5c50ec7766372ba8826b3cd231
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/40154
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
| -rw-r--r-- | board/spring/board.c | 8 | ||||
| -rw-r--r-- | board/spring/board.h | 2 |
2 files changed, 7 insertions, 3 deletions
diff --git a/board/spring/board.c b/board/spring/board.c index b46bce1d44..49d591b87e 100644 --- a/board/spring/board.c +++ b/board/spring/board.c @@ -98,8 +98,12 @@ const struct gpio_info gpio_list[GPIO_COUNT] = { /* ADC channels */ const struct adc_t adc_channels[ADC_CH_COUNT] = { - /* Micro USB ID pin. Raw ADC value. */ - [ADC_CH_USB_ID] = {"USB_ID", 1, 1, 0, STM32_AIN(5)}, + /* + * VBUS voltage sense pin. + * Sense pin 3.3V is converted to 4096. Accounting for the 2x + * voltage divider, the conversion factor is 6600mV/4096. + */ + [ADC_CH_USB_VBUS_SNS] = {"USB_VBUS_SNS", 6600, 4096, 0, STM32_AIN(5)}, /* Micro USB D+ sense pin. Raw ADC value. */ [ADC_CH_USB_DP_SNS] = {"USB_DP_SNS", 1, 1, 0, STM32_AIN(2)}, /* Micro USB D- sense pin. Raw ADC value. */ diff --git a/board/spring/board.h b/board/spring/board.h index a53976419b..4e78134842 100644 --- a/board/spring/board.h +++ b/board/spring/board.h @@ -65,7 +65,7 @@ /* ADC signal */ #define CONFIG_ADC enum adc_channel { - ADC_CH_USB_ID = 0, + ADC_CH_USB_VBUS_SNS = 0, ADC_CH_USB_DP_SNS, ADC_CH_USB_DN_SNS, |