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Date:   Sun, 14 May 2017 23:10:48 +0800
From:   ayaka <>
To:     Heiko Stuebner <>
Subject: Re: [PATCH] ARM: dts: rockchip: add missing grf phandle for rk3288

On 05/14/2017 10:59 PM, Heiko Stuebner wrote:
> Hi Randy,
> Am Sonntag, 7. Mai 2017, 22:34:46 CEST schrieb Randy Li:
>> The PWM devices need to access the grf to switch the PWM IP.
> The grf property is not part of the pwm binding and I remember
> this coming up in veyron times, when Thiery didn't want such settings
> in the pwm driver. So the kernel pwm driver does not switch anything
> right now.
OK, I see, I will contact the u-boot, submit a patch there.
>> And tsadc uses it to shutdown the system.
> No it doesn't. The tsadc on rk3288 does not do any grf settings right now,
> as it is using the v2_initialize function. Only rk3366 and rk3399 seem
> to do any grf settings in the current v4.12-rc1 . Or is there some tsadc
> patch from you pending to change that?
Not yet, there is a register CRU_GLB_RST_ST at rk3288 cru. I think I 
need to submit a patch for it.
> Heiko

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