* The PWM is broken at RK3288
@ 2016-10-25 12:47 Randy Li
2016-10-25 12:58 ` Heiko Stübner
0 siblings, 1 reply; 2+ messages in thread
From: Randy Li @ 2016-10-25 12:47 UTC (permalink / raw)
To: linux-pwm-u79uwXL29TY76Z2rM5mHXA
Cc: linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
ayaka-xPW3/0Ywev/iB9QmIjCX8w,
thierry.reding-Re5JQEeQqe8AvxtiuMwx3w,
heiko-4mtYJXux2i+zQB+pC5nmwQ, contact-W9ppeneeCTY
Hello
Recently, paulk told me that he meet a problem with PWM backlight at
rk3288, I do a test at EVB board a few minutes age, it is true. The
kernel 4.4 would work fine. So the pwm driver at next-20161020 maybe
broken. It is too late, so I have no time to confirm whether the PWM1
would have the same problem.
I would look into it in the other day and see whether I could do
something for that.
--
Randy Li
The third produce department
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: The PWM is broken at RK3288
2016-10-25 12:47 The PWM is broken at RK3288 Randy Li
@ 2016-10-25 12:58 ` Heiko Stübner
0 siblings, 0 replies; 2+ messages in thread
From: Heiko Stübner @ 2016-10-25 12:58 UTC (permalink / raw)
To: Randy Li; +Cc: linux-pwm, thierry.reding, linux-rockchip, ayaka, contact
Hi Randy,
Am Dienstag, 25. Oktober 2016, 20:47:49 schrieb Randy Li:
> Recently, paulk told me that he meet a problem with PWM backlight at
> rk3288, I do a test at EVB board a few minutes age, it is true. The
> kernel 4.4 would work fine. So the pwm driver at next-20161020 maybe
> broken. It is too late, so I have no time to confirm whether the PWM1
> would have the same problem.
> I would look into it in the other day and see whether I could do
> something for that.
just yesterday I booted a 4.9-rc2 on my rk3288-veyron-pinky Chromebook and the
display (backlight supplied by the pwm) was still working correctly. I haven't
tested any next-kernels yet though, so maybe something broke there.
Heiko
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2016-10-25 12:58 ` Heiko Stübner
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