Re: [PATCH 1/2] extcon: extcon-dra7xx: Add extcon driver for USB ID detection

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 08/21/2013 07:06 AM, George Cherian wrote:
> Hi Stephen,
> 
> On 8/20/2013 10:23 PM, Stephen Warren wrote:
>>> >ID pins are connected to pcf8575, and the pcf8575's interrupt line is
>>> >inturn connected to
>>> >gpio bank6 pin 11, we use this gpio interrupt to detect the ID pin
>>> change.
>> In that case, the PCF8575 node needs to be a GPIO controller and an IRQ
>> controller, as does the driver for the PCF8575. This binding should have
>> a single entry in the gpios property, and the driver can call
>> gpio_to_irq() on that so it knows which IRQ to request.
> 
> You meant some thing like this?
> 
>        pcf_usb: pcf8575@21 {
>                 compatible = "ti,pcf8575";
>                 reg = <0x21>;
>                 gpio-controller;
>                 #gpio-cells = <2>;
>                 interrupt-parent = <&gpio6>;
>                 interrupts = <11 2>;
>                 interrupt-controller;
>                 #interrupt-cells = <2>;
>      };
> 
>      usb_vid_gpio {
>                 compatible = "ti,dra7xx-usb";
>                 gpios = <&pcf_usb 1 0>;
>      };

Yes.

Except that the compatible value for the usb_vid_gpio node still looks
wrong, since I think that node isn't anything to do with any particular SoC.
--
To unsubscribe from this list: send the line "unsubscribe linux-doc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Kernel Newbies]     [Security]     [Netfilter]     [Bugtraq]     [Linux FS]     [Yosemite Forum]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Video 4 Linux]     [Device Mapper]     [Linux Resources]

  Powered by Linux