From: ChiYuan Huang <[email protected]>
This patch set is to add Richtek RT9759 smart cap divider charger.
The RT9759 is a high efficiency and high charge current charger.
The efficiency is up to 97.8% when VBAT=4.2V, IBAT=2.5A, and the maximum
charge current is up to 8A. The device integrates smart cap divider topology
with a dual-phase charge pump core and 9 channel high speed ADCs to monitor
the charging process.
Since v2:
- Add Reviewed-by tag for dt-binding patch
- Change ABI document date from Oct 2022 to Nov 2022 and KernelVersion
from 6.1 to 6.2
ChiYuan Huang (3):
dt-bindings: power: supply: Add Richtek RT9759 smart cap divider
charger
power: supply: rt9471: Add Richtek RT9759 smart cap divider charger
Documentation: power: rt9759: Document exported sysfs entries
Documentation/ABI/testing/sysfs-class-power-rt9759 | 37 ++
.../bindings/power/supply/richtek,rt9759.yaml | 61 ++
drivers/power/supply/Kconfig | 15 +
drivers/power/supply/Makefile | 1 +
drivers/power/supply/rt9759.c | 611 +++++++++++++++++++++
5 files changed, 725 insertions(+)
create mode 100644 Documentation/ABI/testing/sysfs-class-power-rt9759
create mode 100644 Documentation/devicetree/bindings/power/supply/richtek,rt9759.yaml
create mode 100644 drivers/power/supply/rt9759.c
--
2.7.4
From: ChiYuan Huang <[email protected]>
Document the settings exported by rt9759 charger driver through sysfs
entries:
- watchdog_timer
- battery_voltage
- battery_current
Signed-off-by: ChiYuan Huang <[email protected]>
---
Since v2:
- Change ABI document date from Oct 2022 to Nov 2022 and KernelVersion
from 6.1 to 6.2
---
Documentation/ABI/testing/sysfs-class-power-rt9759 | 37 ++++++++++++++++++++++
1 file changed, 37 insertions(+)
create mode 100644 Documentation/ABI/testing/sysfs-class-power-rt9759
diff --git a/Documentation/ABI/testing/sysfs-class-power-rt9759 b/Documentation/ABI/testing/sysfs-class-power-rt9759
new file mode 100644
index 00000000..8a7258f
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-power-rt9759
@@ -0,0 +1,37 @@
+What: /sys/class/power_supply/rt9759-*/watchdog_timer
+Date: Nov 2022
+KernelVersion: 6.2
+Contact: ChiYuan Huang <[email protected]>
+Description:
+ This entry shows and sets the watchdog timer when rt9759 charger
+ operates in charging mode. When the timer expires, the device
+ will disable the charging. To prevent the timer expires, any
+ host communication can make the timer restarted.
+
+ Access: Read, Write
+
+ Valid values:
+ - 500, 1000, 5000 or 30000 (milliseconds),
+ - 0: disabled
+
+What: /sys/class/power_supply/rt9759-*/battery_voltage
+Date: Nov 2022
+KernelVersion: 6.2
+Contact: ChiYuan Huang <[email protected]>
+Description:
+ Reports the current BAT voltage.
+
+ Access: Read-Only
+
+ Valid values: Represented in microvolts
+
+What: /sys/class/power_supply/rt9759-*/battery_current
+Date: Nov 2022
+KernelVersion: 6.2
+Contact: ChiYuan Huang <[email protected]>
+Description:
+ Reports the current BAT current.
+
+ Access: Read-Only
+
+ Valid values: Represented in microamps
--
2.7.4