Re: [PATCH] ARM: dts: fix PWM clock found on RK3288 Socs

From: Doug Anderson
Date: Wed Nov 19 2014 - 00:15:12 EST


On Tue, Nov 18, 2014 at 7:25 PM, Caesar Wang <> wrote:
> We use the new PWM IP on RK3288,but the PWM's clock indeed incorrect.
> Signed-off-by: Caesar Wang <>
> ---
> arch/arm/boot/dts/rk3288.dtsi | 8 ++++----
> 1 file changed, 4 insertions(+), 4 deletions(-)

Right, I reported this when Kever was doing his "unused clocks" patch.
That's why this clock is currently "ignore unused".

...but though your change is right, I'd rather your change doesn't
land quite yet. It totally wrecks havoc with the PWM regulator used
on many rk3288 boards and will glitch the main "logic" voltage at
bootup. I have some patches that are MASSIVELY WIP:
WIP: regulator: pwm: Tell regulator framework that we can't turn off
WIP: PWM: handle the fact that firmware might have left us enabled
WIP: pwm-regulator stuff

I think that last one might blow up into several patches. We need to
solve the problems from those patches before yours can really land.

It's pretty high on my list to finish the above patches, but right now
suspend/resume issues are higher priority so it's a bit stalled... If
someone wants to hijack any of the above patches please let me know--I
won't be offended.

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