Re: [PATCH 04/11] watchdog: ftwdt010: Add clock support

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On Wed, Oct 11, 2017 at 4:06 AM, Linus Walleij <linus.walleij@xxxxxxxxxx> wrote:
> So need info from Joel Stanley here:
>
> On Tue, Oct 10, 2017 at 9:51 PM, Linus Walleij <linus.walleij@xxxxxxxxxx> wrote:
>> On Sun, Aug 27, 2017 at 7:06 PM, Guenter Roeck <linux@xxxxxxxxxxxx> wrote:
>>> On Thu, Aug 24, 2017 at 10:32:22PM +0200, Linus Walleij wrote:
>>>> On Mon, Aug 14, 2017 at 6:05 PM, Guenter Roeck <linux@xxxxxxxxxxxx> wrote:
>
>>> If I understand your comment below correctly, the driver won't work
>>> without clock subsystem because the clock frequency would in that case
>>> be 0. Why not catch that situation here, or even better make the driver
>>> depends on the clock subsystem ?
>>
>> OK fair enough I can do that.
>>
>> I think Aspeed is merging its clock driver this kernel cycle
>> so all variant SoCs actually have clocks.
>
> So when I later in the patch series convert Aspeed to use this driver
> we get a problem because Joel is currently working on the clock
> driver for Aspeed and it's not ready for merge yet as it looks.
>
> I can of course wait with the Aspeed conversion to use the common
> driver.
>
> Also I can slap in a fixed-rate clock in the device tree @1 MHz.
> But that is cheating.

All of our clocks in the device tree are cheating at the moment :)

>
> So I guess I rest the Aspeed conversion.
> Joel: does your clock patch set cover the 1MHz used by
> the watchdog EXTCLK?

It doesn't; none of the documentation I have describes where it comes
from. I will add something in the next iteration.

Cheers,

Joel
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