From mboxrd@z Thu Jan 1 00:00:00 1970 From: George Cherian Subject: [PATCH 2/2] extcon: gpio: Add support for using cable names Date: Tue, 14 Oct 2014 20:09:05 +0530 Message-ID: <1413297545-26521-3-git-send-email-george.cherian@ti.com> References: <1413297545-26521-1-git-send-email-george.cherian@ti.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1413297545-26521-1-git-send-email-george.cherian@ti.com> Sender: linux-kernel-owner@vger.kernel.org To: myungjoo.ham@samsung.com, cw00.choi@samsung.com Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Baohua.Song@csr.com, rongjun.ying@csr.com, galak@codeaurora.org, ijc+devicetree@hellion.org.uk, mark.rutland@arm.com, pawel.moll@arm.com, robh+dt@kernel.org, George Cherian List-Id: devicetree@vger.kernel.org Add support for using cable names. Enables other drivers to register interest and get notified using extcon provided notifier call backs. Signed-off-by: George Cherian --- Documentation/devicetree/bindings/extcon/extcon-gpio.txt | 2 ++ drivers/extcon/extcon-gpio.c | 4 ++++ 2 files changed, 6 insertions(+) diff --git a/Documentation/devicetree/bindings/extcon/extcon-gpio.txt b/Documentation/devicetree/bindings/extcon/extcon-gpio.txt index 30aa2e1..2c9d29f 100644 --- a/Documentation/devicetree/bindings/extcon/extcon-gpio.txt +++ b/Documentation/devicetree/bindings/extcon/extcon-gpio.txt @@ -7,6 +7,7 @@ Required Properties: - compatible: should be: * "linux,extcon-gpio" - gpios: specifies the gpio pin used. + - cable-name: Name of the cable used. Optional Properties: - debounce: Debounce time for GPIO IRQ in ms @@ -18,4 +19,5 @@ Eg: compatible = "linux,extcon-gpio"; gpios = <&gpio3 12 GPIO_ACTIVE_HIGH>; debounce = <20>; + cable-name = "USB-HOST"; }; diff --git a/drivers/extcon/extcon-gpio.c b/drivers/extcon/extcon-gpio.c index 85795de..0e1b3e8 100644 --- a/drivers/extcon/extcon-gpio.c +++ b/drivers/extcon/extcon-gpio.c @@ -38,6 +38,7 @@ struct gpio_extcon_data { int irq; struct delayed_work work; unsigned long debounce_jiffies; + const char *cable_name[1]; }; static void gpio_extcon_work(struct work_struct *work) @@ -100,6 +101,9 @@ static int gpio_extcon_probe(struct platform_device *pdev) msecs_to_jiffies(debounce); } + of_property_read_string_index(np, "cable-name", 0, + extcon_data->cable_name); + extcon_data->edev->supported_cable = extcon_data->cable_name; ret = devm_extcon_dev_register(&pdev->dev, extcon_data->edev); if (ret < 0) return ret; -- 1.8.3.1