diff options
| author | André Draszik <andre.draszik@linaro.org> | 2026-03-02 13:32:08 +0000 |
|---|---|---|
| committer | Sebastian Reichel <sebastian.reichel@collabora.com> | 2026-03-03 23:58:07 +0100 |
| commit | 2864fb6aa947703d290b52b1b030b0b74d0a6128 (patch) | |
| tree | 9fa0187a58c75c866c61001f16c0ce68f37a32c8 /include/linux | |
| parent | 2288d5eaca2249b1b8a80af063808cfc42e2a834 (diff) | |
power: supply: max17042: initial support for Maxim MAX77759
The Maxim MAX77759 is a companion PMIC intended for use in mobile
phones and tablets. It is used on Google Pixel 6 and 6 Pro (oriole and
raven). Amongst others, it contains a fuel gauge that is similar to the
ones supported by this driver.
The fuel gauge can measure battery charge and discharge current,
battery voltage, battery temperature, and the Type C connector's
temperature.
The MAX77759 incorporates the Maxim ModelGauge m5 algorithm. It, as
well as previous generations like m3 on max17047/max17050, requires
the host to save/restore some register values across power cycles to
maintain full accuracy. Extending the driver for such support is out of
scope in this initial commit.
Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Link: https://patch.msgid.link/20260302-max77759-fg-v3-9-3c5f01dbda23@linaro.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/power/max17042_battery.h | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/include/linux/power/max17042_battery.h b/include/linux/power/max17042_battery.h index c417abd2ab70..05097f08ea36 100644 --- a/include/linux/power/max17042_battery.h +++ b/include/linux/power/max17042_battery.h @@ -105,7 +105,7 @@ enum max17042_register { MAX17042_OCV = 0xEE, - MAX17042_OCVInternal = 0xFB, /* MAX17055 VFOCV */ + MAX17042_OCVInternal = 0xFB, /* MAX17055/77759 VFOCV */ MAX17042_VFSOC = 0xFF, }; @@ -156,7 +156,7 @@ enum max17055_register { MAX17055_AtAvCap = 0xDF, }; -/* Registers specific to max17047/50/55 */ +/* Registers specific to max17047/50/55/77759 */ enum max17047_register { MAX17047_QRTbl00 = 0x12, MAX17047_FullSOCThr = 0x13, @@ -167,12 +167,32 @@ enum max17047_register { MAX17047_QRTbl30 = 0x42, }; +enum max77759_register { + MAX77759_AvgTA0 = 0x26, + MAX77759_AtTTF = 0x33, + MAX77759_Tconvert = 0x34, + MAX77759_AvgCurrent0 = 0x3B, + MAX77759_THMHOT = 0x40, + MAX77759_CTESample = 0x41, + MAX77759_ISys = 0x43, + MAX77759_AvgVCell0 = 0x44, + MAX77759_RlxSOC = 0x47, + MAX77759_AvgISys = 0x4B, + MAX77759_QH0 = 0x4C, + MAX77759_MixAtFull = 0x4F, + MAX77759_VSys = 0xB1, + MAX77759_TAlrtTh2 = 0xB2, + MAX77759_VByp = 0xB3, + MAX77759_IIn = 0xD0, +}; + enum max170xx_chip_type { MAXIM_DEVICE_TYPE_UNKNOWN = 0, MAXIM_DEVICE_TYPE_MAX17042, MAXIM_DEVICE_TYPE_MAX17047, MAXIM_DEVICE_TYPE_MAX17050, MAXIM_DEVICE_TYPE_MAX17055, + MAXIM_DEVICE_TYPE_MAX77759, MAXIM_DEVICE_TYPE_NUM }; |