linux-kernel - Re: [RFC PATCH 1/4] ARM: dts: am33xx: Add all fck timer clocks

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Date:   Tue, 17 Jul 2018 22:28:05 +0200
From:   Neil Armstrong <narmstrong@...libre.com>
To:     Tony Lindgren <tony@...mide.com>
Cc:     daniel.lezcano@...aro.org, linux-omap@...r.kernel.org,
        linux-kernel@...r.kernel.org, aford173@...il.com,
        drivshin@...rd.com
Subject: Re: [RFC PATCH 1/4] ARM: dts: am33xx: Add all fck timer clocks

Hi Tony,

On 17/07/2018 07:55, Tony Lindgren wrote:
> Hi,
> 
> * Neil Armstrong <narmstrong@...libre.com> [180716 20:42]:
>> Add the missing fck clock to all timer nodes of the AM33XX dtsi.
>>
>> Signed-off-by: Neil Armstrong <narmstrong@...libre.com>
>> ---
>>  arch/arm/boot/dts/am33xx.dtsi | 10 ++++++++++
>>  1 file changed, 10 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
>> index 9cd62bc2..e8e665d 100644
>> --- a/arch/arm/boot/dts/am33xx.dtsi
>> +++ b/arch/arm/boot/dts/am33xx.dtsi
>> @@ -541,6 +541,8 @@
>>  			reg = <0x48042000 0x400>;
>>  			interrupts = <69>;
>>  			ti,hwmods = "timer3";
>> +			clocks = <&timer3_fck>;
>> +			clock-names = "fck";
>>  		};
> 
> These should all use the clkctrl clock nodes, see:

Even the already configured timer1 & timer2 ?

> 
> $ git grep CLKCTRL include/dt-bindings/clock/ | grep TIMER
> 
> The module clock is bit 0, and on some SoCs bit 24 is the
> timer fck. But I don't think these SoS use separate bit 24
> clock.
> 
> Regards,
> 
> Tony
>