Thread (11 messages) 11 messages, 2 authors, 2016-01-13

[PATCH v3 2/2] power: add documentation for ACT8945A's charger DT bindings

From: Yang, Wenyou <hidden>
Date: 2016-01-13 03:50:24
Also in: linux-pm, lkml

Hi Krzysztof,

Thank you for your so much feedback.

I will change it in next version.
-----Original Message-----
From: Krzysztof Kozlowski [mailto:k.kozlowski at samsung.com]
Sent: 2016?1?13? 10:00
To: Yang, Wenyou <redacted>; Sebastian Reichel
[off-list ref]; Dmitry Eremin-Solenikov [off-list ref]; David
Woodhouse [off-list ref]; Rob Herring [off-list ref]; Pawel
Moll [off-list ref]; Mark Rutland [off-list ref]; Ian
Campbell [off-list ref]; Kumar Gala [off-list ref]
Cc: Javier Martinez Canillas <javier@dowhile0.org>; Lee Jones
[off-list ref]; Ferre, Nicolas [off-list ref]; linux-arm-
kernel at lists.infradead.org; linux-kernel at vger.kernel.org; linux-
pm at vger.kernel.org
Subject: Re: [PATCH v3 2/2] power: add documentation for ACT8945A's charger
DT bindings

On 12.01.2016 17:09, Wenyou Yang wrote:
quoted
This patch adds documentation for the DT bindings of the charger
subdevice of ACT8945A MFD.

Signed-off-by: Wenyou Yang <redacted>
---

Changes in v3: None
Changes in v2: None

 .../devicetree/bindings/power/act8945a-charger.txt |   34
++++++++++++++++++++
quoted
 1 file changed, 34 insertions(+)
 create mode 100644
Documentation/devicetree/bindings/power/act8945a-charger.txt

diff --git
a/Documentation/devicetree/bindings/power/act8945a-charger.txt
b/Documentation/devicetree/bindings/power/act8945a-charger.txt
new file mode 100644
index 0000000..868e0164
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/act8945a-charger.txt
@@ -0,0 +1,34 @@
+Device-Tree bindings for charger of Active-semi ACT8945A
+Multi-Function Device
+
+Required properties:
+ - compatible: "active-semi,act8945a-charger"
+ - active-semi,chglev-gpio = Specifies a gpio that uses to select
+   the charge current level.
active-semi,chglev-gpios
See: Documentation/devicetree/bindings/gpio/gpio.txt
quoted
+
+Optional properties:
+ - active-semi,battery_temperature: Indicates if it is allowed to check
+   the battery temperature. If it is missing, assume the battery temperature
+   is not allowed to check.
Here and in rest of properties - no underscores but hyphens. The name suggests
that this is a value... but this is a boolean?
quoted
+ - active-semi,input_voltage_threshold: unit: mV;
+   Specifies the charger's input over-voltage threshold value;
+   The value can be: 6600, 7000, 7500, 8000; default: 6600
I think adding units suffix in binding is preferred. so "-microvolt"?

Best regards,
Krzysztof

quoted
+ - active-semi,precondition_timeout: unit: minutes;
+   Specifies the charger's PRECONDITION safety timer setting value;
+   The value can be: 40, 60, 80, 0; If 0, it means to disable this timer;
+   default: 40.
+ - active-semi,total_timeout: unit: hours;
+   Specifies the charger's total safety timer setting value;
+   The value can be: 3, 4, 5, 0; If 0, it means to disable this timer;
+   default: 3.
+
+Example:
+
+	charger {
+		compatible = "active-semi,act8945a-charger";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_charger_chglev>;
+		active-semi,chglev-gpio = <&pioA 12 GPIO_ACTIVE_HIGH>;
+		active-semi,input_voltage_threshold = <6600>;
+		active-semi,precondition_timeout = <40>;
+		active-semi,total_timeout = <3>;
+	};

Best Regards,
Wenyou Yang
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