FDT help

[Daniel Braniss]

> On Apr 24, 2015, at 11:16 AM, Milan Obuch <freebsd-arm at dino.sk> wrote:
> 
> On Fri, 24 Apr 2015 11:00:33 +0300
> Daniel Braniss <danny at cs.huji.ac.il> wrote:
> 
>> Hi,
>> I have this in my rpi.dts file:
>> 	spi0 {
>> 		rfid0 {
>> 			compatible = “rfid,mfrc5”;
>> 			spi-chipselect = <0>;
>> 			reset {
>> 				compatible = “pcd-reset”;
>> 				gpios = <&gpio 22 2>;
>> 			};
>> 	};
>> 
>> my mfrc5 driver is starting to work - i can load, open, ioctl, unload,
>> but after much grepping, I can’t figure out how from inside the
>> driver i can access the reset pin - which i have defined as gpio 22
>> ofwdump -aP
>> 
>> # ofwdump -aP
>>    ...
>>    Node 0x13c4: spi0
>>      compatible:
>>        62 72 6f 61 64 63 6f 6d 2c 62 63 6d 32 38 33 35 2d 73 70 69 
>>        00 62 72 6f 61 64 63 6f 6d 2c 62 63 6d 32 37 30 38 2d 73 70 
>>        69 00 
>>      reg:
>>        00 20 40 00 00 00 00 20 
>>      interrupts:
>>        00 00 00 3e 
>>      interrupt-parent:
>>        00 00 00 01 
>>      Node 0x143c: rfid0
>>        compatible:
>>          72 66 69 64 2c 6d 66 72 63 35 00 
>>          'rfid,mfrc5'
>>        spi-chipselect:
>>          00 00 00 00 
>>        Node 0x1470: reset
>>          compatible:
>>            70 63 64 2d 72 65 73 65 74 00 
>>            'pcd-reset'
>>          gpios:
>>            00 00 00 03 00 00 00 16 00 00 00 02 
>> 
>> thanks,
>> 	danny
>> 
> 
> Hello,
> 
> I think following could help - I am forwarding what was given to me in
> similar circumstances :)
> 
> http://pastebin.com/4mbZFuv1 <http://pastebin.com/4mbZFuv1>

argh, is this for -stable or -current?

thanks,
	danny

> 
> Regards,
> Milan
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