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| author | Ying-Chun Liu (PaulLiu) <paul.liu@linaro.org> | 2021-01-15 13:53:03 +0800 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2021-01-27 17:07:48 -0500 |
| commit | e89ef172f88118ce036eb46d660f857c9209b194 (patch) | |
| tree | 26fa30adc843ee0ca507d6f8cd546a6f7f0b3d19 /doc | |
| parent | 8d612ccde992f0006b80b9e670b70e5c759a968a (diff) | |
| download | u-boot-e89ef172f88118ce036eb46d660f857c9209b194.tar.gz | |
doc: device-tree-bindings: rtc: Abracon AB x80x i2c rtc
Document the bindings for abracon,abx80x and related compatibles.
Signed-off-by: Ying-Chun Liu (PaulLiu) <paul.liu@linaro.org>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/device-tree-bindings/rtc/abracon,abx80x.txt | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/doc/device-tree-bindings/rtc/abracon,abx80x.txt b/doc/device-tree-bindings/rtc/abracon,abx80x.txt new file mode 100644 index 0000000000..2405e35a1b --- /dev/null +++ b/doc/device-tree-bindings/rtc/abracon,abx80x.txt @@ -0,0 +1,31 @@ +Abracon ABX80X I2C ultra low power RTC/Alarm chip + +The Abracon ABX80X family consist of the ab0801, ab0803, ab0804, ab0805, ab1801, +ab1803, ab1804 and ab1805. The ab0805 is the superset of ab080x and the ab1805 +is the superset of ab180x. + +Required properties: + + - "compatible": should one of: + "abracon,abx80x" + "abracon,ab0801" + "abracon,ab0803" + "abracon,ab0804" + "abracon,ab0805" + "abracon,ab1801" + "abracon,ab1803" + "abracon,ab1804" + "abracon,ab1805" + "microcrystal,rv1805" + Using "abracon,abx80x" will enable chip autodetection. + - "reg": I2C bus address of the device + +Optional properties: + +The abx804 and abx805 have a trickle charger that is able to charge the +connected battery or supercap. Both the following properties have to be defined +and valid to enable charging: + + - "abracon,tc-diode": should be "standard" (0.6V) or "schottky" (0.3V) + - "abracon,tc-resistor": should be <0>, <3>, <6> or <11>. 0 disables the output + resistor, the other values are in kOhm. |