diff mbox

[4/4] extcon: gpio: Add support for using cable names

Message ID 1415032350-8459-5-git-send-email-balbi@ti.com
State New
Headers show

Commit Message

Felipe Balbi Nov. 3, 2014, 4:32 p.m. UTC
From: George Cherian <george.cherian@ti.com>

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 <george.cherian@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
---
 Documentation/devicetree/bindings/extcon/extcon-gpio.txt | 2 ++
 drivers/extcon/extcon-gpio.c                             | 4 ++++
 2 files changed, 6 insertions(+)

Comments

Felipe Balbi Nov. 3, 2014, 4:39 p.m. UTC | #1
On Mon, Nov 03, 2014 at 10:32:30AM -0600, Felipe Balbi wrote:
> From: George Cherian <george.cherian@ti.com>
> 
> 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 <george.cherian@ti.com>
> Signed-off-by: Sekhar Nori <nsekhar@ti.com>

Signed-off-by: Felipe Balbi <balbi@ti.com>

> ---
>  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 5fe6846..f19aeb4 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 7191d28..cbe35af 100644
> --- a/drivers/extcon/extcon-gpio.c
> +++ b/drivers/extcon/extcon-gpio.c
> @@ -42,6 +42,7 @@ struct gpio_extcon_data {
>  	struct delayed_work work;
>  	unsigned long debounce_jiffies;
>  	bool check_on_resume;
> +	const char *cable_name[1];
>  };
>  
>  static void gpio_extcon_work(struct work_struct *work)
> @@ -112,6 +113,9 @@ static int gpio_extcon_probe(struct platform_device *pdev)
>  		of_property_read_u32(np, "debounce", &debounce);
>  		irq = gpiod_to_irq(extcon_data->gpiod);
>  		irq_flags = irq_get_trigger_type(irq);
> +		of_property_read_string_index(np, "cable-name", 0,
> +					      extcon_data->cable_name);
> +		extcon_data->edev->supported_cable = extcon_data->cable_name;
>  	} else {
>  		if (!pdata)
>  			return -EBUSY;
> -- 
> 2.1.0.GIT
> 
> --
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diff mbox

Patch

diff --git a/Documentation/devicetree/bindings/extcon/extcon-gpio.txt b/Documentation/devicetree/bindings/extcon/extcon-gpio.txt
index 5fe6846..f19aeb4 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 7191d28..cbe35af 100644
--- a/drivers/extcon/extcon-gpio.c
+++ b/drivers/extcon/extcon-gpio.c
@@ -42,6 +42,7 @@  struct gpio_extcon_data {
 	struct delayed_work work;
 	unsigned long debounce_jiffies;
 	bool check_on_resume;
+	const char *cable_name[1];
 };
 
 static void gpio_extcon_work(struct work_struct *work)
@@ -112,6 +113,9 @@  static int gpio_extcon_probe(struct platform_device *pdev)
 		of_property_read_u32(np, "debounce", &debounce);
 		irq = gpiod_to_irq(extcon_data->gpiod);
 		irq_flags = irq_get_trigger_type(irq);
+		of_property_read_string_index(np, "cable-name", 0,
+					      extcon_data->cable_name);
+		extcon_data->edev->supported_cable = extcon_data->cable_name;
 	} else {
 		if (!pdata)
 			return -EBUSY;