From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754544AbdEIFgn (ORCPT ); Tue, 9 May 2017 01:36:43 -0400 Received: from atl4mhob05.myregisteredsite.com ([209.17.115.43]:44028 "EHLO atl4mhob05.registeredsite.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752014AbdEIFgl (ORCPT ); Tue, 9 May 2017 01:36:41 -0400 X-TCPREMOTEIP: 37.74.225.130 X-Authenticated-UID: mike@milosoftware.com From: Mike Looijmans 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 Subject: [PATCH v2] dt-bindings: power: New bindings for ltc3651-charger Date: Tue, 9 May 2017 07:36:30 +0200 Message-Id: <1494308190-3687-1-git-send-email-mike.looijmans@topic.nl> X-Mailer: git-send-email 1.9.1 References: <1493966315-15893-1-git-send-email-mike.looijmans@topic.nl> <20170508171206.ajxjbw5mybvrpwss@rob-hp-laptop> In-Reply-To: <20170508171206.ajxjbw5mybvrpwss@rob-hp-laptop> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This adds the devicetree bindings documentation for the LTC3651 battery charger. Signed-off-by: Mike Looijmans --- 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