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| author | Aseda Aboagye <aaboagye@google.com> | 2020-04-16 13:54:49 -0700 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2020-04-21 19:49:54 +0000 |
| commit | ed6bc5e1bc86bfa9bf5d436fd77c14ad4d6068cb (patch) | |
| tree | 8d14d4b371ad586e96f82101ee429ff58a33a603 /driver/charger/isl923x.h | |
| parent | d8d1f71a4f5e53d97ab99f86a2cbd2aa1dd7a268 (diff) | |
| download | chrome-ec-ed6bc5e1bc86bfa9bf5d436fd77c14ad4d6068cb.tar.gz | |
raa489000: Add hibernate function
The RAA489000 supports a battery ship mode in which the charger IC
consumes the least amount of power. This commit adds that
functionality.
BUG=b:150236134
BRANCH=None
TEST=Call function on waddledoo, build and flash, verify that device
still wakes up from hibernate via AC insertion.
Signed-off-by: Aseda Aboagye <aaboagye@google.com>
Change-Id: I5fd35adb4c0e737c438d766676e3f6038fc0d397
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2153808
Tested-by: Aseda Aboagye <aaboagye@chromium.org>
Reviewed-by: Diana Z <dzigterman@chromium.org>
Commit-Queue: Aseda Aboagye <aaboagye@chromium.org>
Diffstat (limited to 'driver/charger/isl923x.h')
| -rw-r--r-- | driver/charger/isl923x.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/driver/charger/isl923x.h b/driver/charger/isl923x.h index 3ff0de9d69..d71bf170f1 100644 --- a/driver/charger/isl923x.h +++ b/driver/charger/isl923x.h @@ -32,6 +32,7 @@ #define ISL9238_REG_INPUT_VOLTAGE 0x4b #define ISL923X_REG_MANUFACTURER_ID 0xfe #define ISL923X_REG_DEVICE_ID 0xff +#define RAA489000_REG_CONTROL8 0x37 /* Sense resistor default values in mOhm */ #define ISL923X_DEFAULT_SENSE_RESISTOR_AC 20 @@ -103,6 +104,10 @@ #define ISL923X_C0_DCHOT_3A (3 << 3) #define ISL923X_C0_DCHOT_MASK (3 << 3) +/* Control0: BGATE force on */ +#define RAA489000_C0_BGATE_FORCE_ON BIT(10) +#define RAA489000_C0_EN_CHG_PUMPS_TO_100PCT BIT(6) + /* Control1: general purpose comparator debounce time in micro second */ #define ISL923X_C1_GP_DEBOUNCE_2 (0 << 14) #define ISL923X_C1_GP_DEBOUNCE_12 BIT(14) @@ -147,6 +152,12 @@ #define ISL923X_C1_VSYSLO_REF_6900 3 #define ISL923X_C1_VSYSLO_REF_MASK 3 +/* Control1: Supplemental mode support */ +#define RAA489000_C1_ENABLE_SUPP_SUPPORT_MODE BIT(10) + +/* Control1: BGATE Force Off */ +#define RAA489000_C1_BGATE_FORCE_OFF BIT(6) + /* Control2: trickle charging current in mA */ #define ISL923X_C2_TRICKLE_256 (0 << 14) #define ISL923X_C2_TRICKLE_128 BIT(14) @@ -240,6 +251,12 @@ /* Control4: PSYS Rsense ratio. */ #define RAA489000_C4_PSYS_RSNS_RATIO_1_TO_1 BIT(11) +/* Control4: GP comparator control bit */ +#define RAA489000_C4_DISABLE_GP_CMP BIT(12) + +/* Control8: MCU_LDO - BAT state disable */ +#define RAA489000_C8_MCU_LDO_BAT_STATE_DISABLE BIT(14) + /* OTG voltage limit in mV, current limit in mA */ #define ISL9237_OTG_VOLTAGE_MIN 4864 #define ISL9237_OTG_VOLTAGE_MAX 5376 @@ -355,5 +372,14 @@ int isl923x_set_dc_prochot(int chgnum, uint16_t ma); */ int isl923x_set_comparator_inversion(int chgnum, int invert); +/** + * Prepare the charger IC for battery ship mode. Battery ship mode sets the + * lowest power state for the IC. Battery ship mode can only be entered from + * battery only mode. + * + * @param chgnum index into chg_chips table. + */ +void raa489000_hibernate(int chgnum); + #define ISL923X_AC_PROCHOT_CURRENT_MAX 6400 /* mA */ #define ISL923X_DC_PROCHOT_CURRENT_MAX 12800 /* mA */ |