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| author | Jett Rink <jettrink@chromium.org> | 2018-08-07 15:03:42 -0600 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2018-08-23 17:42:49 -0700 |
| commit | bb7cee5a6b9a160c9df6a073ce16d5595d1433b4 (patch) | |
| tree | d1d3a43ced27d71f9d51844cb52b81f36946c015 /baseboard/octopus/variant_ec_ite8320.c | |
| parent | 7487f9eef6159b9b3253b4d30e9dd0b114bd07e1 (diff) | |
| download | chrome-ec-bb7cee5a6b9a160c9df6a073ce16d5595d1433b4.tar.gz | |
octopus: update bip for lower power hibernate
Pulled hibernate_wake_pins into each EC variant because the 4/5
item array was getting pretty fractured.
Bip EC now wakes up based on PPC interrupts instead of AC_PRESENT. This
allows the PPCs to disable the SNK FET (and all OVP circuitry). The power
won't get from the USB-C connector to the battery charger until the EC
wakes up, but that isn't an issue.
BRANCH=none
BUG=b:111006203,b:111520593
TEST=bip PD_A rail is 3.97mW during hiberate with this CL stack
Change-Id: I2d08ca5bb2b0b7181c7a0f0c5894b8f59ccbd85f
Signed-off-by: Jett Rink <jettrink@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1166184
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Diffstat (limited to 'baseboard/octopus/variant_ec_ite8320.c')
| -rw-r--r-- | baseboard/octopus/variant_ec_ite8320.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/baseboard/octopus/variant_ec_ite8320.c b/baseboard/octopus/variant_ec_ite8320.c index 7e81a00ed1..459ea113b3 100644 --- a/baseboard/octopus/variant_ec_ite8320.c +++ b/baseboard/octopus/variant_ec_ite8320.c @@ -10,6 +10,22 @@ #include "util.h" /******************************************************************************/ +/* Wake up pins */ +const enum gpio_signal hibernate_wake_pins[] = { + GPIO_LID_OPEN, + GPIO_POWER_BUTTON_L, + /* + * The PPC interrupts (which fire when Vbus changes) is a proxy for + * AC_PRESENT. This allows us to turn off the PPC SNK FETS during + * hibernation which saves power. Once the EC wakes up, it will enable + * the SNK FETs and power will make it to the rest of the system. + */ + GPIO_USB_C0_PD_INT_ODL, + GPIO_USB_C1_PD_INT_ODL, +}; +const int hibernate_wake_pins_used = ARRAY_SIZE(hibernate_wake_pins); + +/******************************************************************************/ /* I2C port map configuration */ const struct i2c_port_t i2c_ports[] = { {"power", IT83XX_I2C_CH_A, 100, GPIO_I2C0_SCL, GPIO_I2C0_SDA}, |