PWM driver

[Methlal Pallewatta]

Correct. Looks like some work has been done on this recently,

See
https://patchwork.kernel.org/patch/2163151/

But this generic framework does not cover the MSEN=0 mode of BCM2835. So 
maybe a device specific mode can be added but that doesn't look very nice.

Also  Bill Gatliff's original patches weren't accepted by the mainstream 
kernel.

Regards,

Methlal

On 3/3/2013 3:03 AM, Johannes Thumshirn wrote:
> Hi Methlal,
>
> First of all I thought of just providing a kernel driver. As for providing a
> sysfs interface, wouldn't that be a job for the pwm core driver? I don't see a
> point in providing an userland interface in a device driver, if this interface
> could be provided by the driver's class core driver, similar to what the GPIO
> class does. But this should be a topic for the pwm appropriate mailing list.
>
> If you're willing to help on this, I'd like to participate in this topic as
> well.
>
> Greets,
> Johannes
>
> On Sat, Mar 02, 2013 at 02:48:05PM -0800, Methlal Pallewatta wrote:
>> Hi Johannes,
>> Do you want to expose PWM control to the userland via sysfs or just
>> provide a kernel driver ?.
>>
>> See
>> http://git.billgatliff.com/pwm.git/
>>
>> for the sysfs interface (for beaglebone) by Bill Gatliff.
>>
>> In the case of the latter I would like to contribute.
>>
>> Thanks,
>>
>> Methlal
>>
>>
>> On 3/2/2013 11:22 AM, Johannes Thumshirn wrote:
>>> Hi list,
>>>
>>> Is anyone currently working on a PWM driver for the BCM2835 SoC?
>>>
>>> If not, I already have a skeleton but don't want to do the work for nothing if
>>> somebody else has a nearly finished version.
>>>
>>> Thanks,
>>> Johannes
>>>
>>> _______________________________________________
>>> linux-rpi-kernel mailing list
>>> linux-rpi-kernel at lists.infradead.org
>>> http://lists.infradead.org/mailman/listinfo/linux-rpi-kernel
>>>
>>
>> _______________________________________________
>> linux-rpi-kernel mailing list
>> linux-rpi-kernel at lists.infradead.org
>> http://lists.infradead.org/mailman/listinfo/linux-rpi-kernel
> _______________________________________________
> linux-rpi-kernel mailing list
> linux-rpi-kernel at lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-rpi-kernel
>