linux-kernel - Re: [PATCH v11 00/27] ARM: davinci: convert to common clock framework

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <33875d5b-6e99-fa38-20aa-9701e2c851d6@lechnology.com>
Date:   Tue, 26 Jun 2018 10:34:32 -0500
From:   David Lechner <david@...hnology.com>
To:     Sekhar Nori <nsekhar@...com>, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Cc:     Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...eaurora.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Kevin Hilman <khilman@...nel.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Adam Ford <aford173@...il.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v11 00/27] ARM: davinci: convert to common clock framework

On 06/26/2018 07:56 AM, Sekhar Nori wrote:
> On Friday 25 May 2018 11:51 PM, David Lechner wrote:
>> On 05/22/2018 04:38 AM, Sekhar Nori wrote:
>>> Hi David,
>>>
>>> On Friday 18 May 2018 10:18 PM, David Lechner wrote:
>>>> This series converts mach-davinci to use the common clock framework.
>>>>
>>>> The series works like this, the first 3 patches fix some issues with
>>>> the clock
>>>> drivers that have already been accepted into the mainline kernel.
>>>>
>>>> Then, starting with "ARM: davinci: pass clock as parameter to
>>>> davinci_timer_init()", we get the mach code ready for the switch by
>>>> adding the
>>>> code needed for the new clock drivers and adding #ifndef
>>>> CONFIG_COMMON_CLK
>>>> around the legacy clocks so that we can switch easily between the old
>>>> and the
>>>> new.
>>>>
>>>> "ARM: davinci: switch to common clock framework" actually flips the
>>>> switch
>>>> to start using the new clock drivers. Then the next 8 patches remove all
>>>> of the old clock code.
>>>>
>>>> The final four patches add device tree clock support to the one SoC that
>>>> supports it.
>>>>
>>>> This series has been tested on TI OMAP-L138 LCDK (both device tree
>>>> and legacy
>>>> board file).
>>>
>>> If you do end up sending a v12, you can leave out the mach-davinci
>>> portions unless there are any changes you need to make. I will pick them
>>> up from this series once the driver dependencies are merged.
>>>
>>> I do hope the drivers/clk/* changes can be merged from v4.18.
>>>
>>
>> I have resent all of the clk patches (including all of the ones I listed as
>> dependencies in addition to the three remaining in this series) under the
>> cover "clk: davinci: outstanding fixes".
>>
>> I also found that we need to add power-domains properties to the PWM nodes
>> in "ARM: dts: da850: Add clocks". I probably should just take your advice
>> and just globally added them even if they are not documented for some types
>> ofnodes.
> 
> I think doing it en masse will be controversial. Just add it to PWM
> nodes for now (I am assuming the binding documentation agrees).
> 
> I have applied this series so please send any more changes as follow-on
> patches.
> 
> Thanks
> Sekhar
> 

FYI, there are some CPU frequency scaling patches that I was playing around
with, but I don't plan on submitting them since they aren't much use to me
at the moment. If anyone would like to pick them up, you can find them at
https://github.com/dlech/linux/tree/da850-dt-cpufreq.