From: Mike Looijmans <mike.looijmans@topic.nl> To: devicetree@vger.kernel.org Cc: sre@kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, mark.rutland@arm.com, Mike Looijmans <mike.looijmans@topic.nl> Subject: [PATCH v2] dt-bindings: power: New bindings for ltc3651-charger Date: Tue, 9 May 2017 07:36:30 +0200 [thread overview] Message-ID: <1494308190-3687-1-git-send-email-mike.looijmans@topic.nl> (raw) In-Reply-To: <20170508171206.ajxjbw5mybvrpwss@rob-hp-laptop> This adds the devicetree bindings documentation for the LTC3651 battery charger. Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl> --- v2: Add "lltc," vendor prefix to gpios Expand irq paragraph .../bindings/power/supply/ltc3651-charger.txt | 27 ++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/supply/ltc3651-charger.txt diff --git a/Documentation/devicetree/bindings/power/supply/ltc3651-charger.txt b/Documentation/devicetree/bindings/power/supply/ltc3651-charger.txt new file mode 100644 index 0000000..71f2840 --- /dev/null +++ b/Documentation/devicetree/bindings/power/supply/ltc3651-charger.txt @@ -0,0 +1,27 @@ +ltc3651-charger + +Required properties: + - compatible: "lltc,ltc3651-charger" + - lltc,acpr-gpios: Connect to ACPR output. See remark below. + +Optional properties: + - lltc,fault-gpios: Connect to FAULT output. See remark below. + - lltc,chrg-gpios: Connect to CHRG output. See remark below. + +The ltc3651 outputs are open-drain type and active low. The driver assumes the +GPIO reports "active" when the output is asserted, so if the pins have been +connected directly, the GPIO flags should be set to active low also. + +The driver will attempt to aquire interrupts for all GPIOs to detect changes in +line state. If the system is not capabale of providing interrupts, the driver +cannot report changes and userspace will need to periodically read the sysfs +attributes to detect changes. + +Example: + + charger: battery-charger { + compatible = "lltc,ltc3651-charger"; + lltc,acpr-gpios = <&gpio0 68 GPIO_ACTIVE_LOW>; + lltc,fault-gpios = <&gpio0 64 GPIO_ACTIVE_LOW>; + lltc,chrg-gpios = <&gpio0 63 GPIO_ACTIVE_LOW>; + }; -- 1.9.1
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From: Mike Looijmans <mike.looijmans-Oq418RWZeHk@public.gmane.org> To: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: sre-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, linux-pm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, mark.rutland-5wv7dgnIgG8@public.gmane.org, Mike Looijmans <mike.looijmans-Oq418RWZeHk@public.gmane.org> Subject: [PATCH v2] dt-bindings: power: New bindings for ltc3651-charger Date: Tue, 9 May 2017 07:36:30 +0200 [thread overview] Message-ID: <1494308190-3687-1-git-send-email-mike.looijmans@topic.nl> (raw) In-Reply-To: <20170508171206.ajxjbw5mybvrpwss@rob-hp-laptop> This adds the devicetree bindings documentation for the LTC3651 battery charger. Signed-off-by: Mike Looijmans <mike.looijmans-Oq418RWZeHk@public.gmane.org> --- v2: Add "lltc," vendor prefix to gpios Expand irq paragraph .../bindings/power/supply/ltc3651-charger.txt | 27 ++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/supply/ltc3651-charger.txt diff --git a/Documentation/devicetree/bindings/power/supply/ltc3651-charger.txt b/Documentation/devicetree/bindings/power/supply/ltc3651-charger.txt new file mode 100644 index 0000000..71f2840 --- /dev/null +++ b/Documentation/devicetree/bindings/power/supply/ltc3651-charger.txt @@ -0,0 +1,27 @@ +ltc3651-charger + +Required properties: + - compatible: "lltc,ltc3651-charger" + - lltc,acpr-gpios: Connect to ACPR output. See remark below. + +Optional properties: + - lltc,fault-gpios: Connect to FAULT output. See remark below. + - lltc,chrg-gpios: Connect to CHRG output. See remark below. + +The ltc3651 outputs are open-drain type and active low. The driver assumes the +GPIO reports "active" when the output is asserted, so if the pins have been +connected directly, the GPIO flags should be set to active low also. + +The driver will attempt to aquire interrupts for all GPIOs to detect changes in +line state. If the system is not capabale of providing interrupts, the driver +cannot report changes and userspace will need to periodically read the sysfs +attributes to detect changes. + +Example: + + charger: battery-charger { + compatible = "lltc,ltc3651-charger"; + lltc,acpr-gpios = <&gpio0 68 GPIO_ACTIVE_LOW>; + lltc,fault-gpios = <&gpio0 64 GPIO_ACTIVE_LOW>; + lltc,chrg-gpios = <&gpio0 63 GPIO_ACTIVE_LOW>; + }; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html
next prev parent reply other threads:[~2017-05-09 5:36 UTC|newest] Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top 2017-05-05 6:38 [PATCH] dt-bindings: power: New bindings for ltc3651-charger Mike Looijmans 2017-05-08 17:12 ` Rob Herring 2017-05-09 5:26 ` Mike Looijmans 2017-05-09 5:26 ` Mike Looijmans 2017-05-09 5:36 ` Mike Looijmans [this message] 2017-05-09 5:36 ` [PATCH v2] " Mike Looijmans 2017-05-12 20:11 ` Rob Herring 2017-05-15 13:17 ` Sebastian Reichel 2017-05-15 13:17 ` Sebastian Reichel
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