linux-kernel - [PATCH RESEND v3 3/3] Documentation: power: rt9759: Document exported sysfs entries

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Message-ID: <1673591682-25789-4-git-send-email-cy_huang@richtek.com>
Date:   Fri, 13 Jan 2023 14:34:42 +0800
From:   <cy_huang@...htek.com>
To:     <sre@...nel.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>
CC:     <allen_chiang@...htek.com>, <cy_huang@...htek.com>,
        <u0084500@...il.com>, <linux-pm@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH RESEND v3 3/3] Documentation: power: rt9759: Document exported sysfs entries

From: ChiYuan Huang <cy_huang@...htek.com>

Document the settings exported by rt9759 charger driver through sysfs
entries:

- watchdog_timer
- battery_voltage
- battery_current

Signed-off-by: ChiYuan Huang <cy_huang@...htek.com>
---
Since v3:
No change

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 <cy_huang@...htek.com>
+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 <cy_huang@...htek.com>
+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 <cy_huang@...htek.com>
+Description:
+		Reports the current BAT current.
+
+		Access: Read-Only
+
+		Valid values: Represented in microamps
-- 
2.7.4