linux-kernel - Re: [PATCH v8 00/42] ARM: davinci: convert to common clock framework

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Date:   Mon, 19 Mar 2018 10:59:47 -0500
From:   David Lechner <david@...hnology.com>
To:     Bartosz Golaszewski <bgolaszewski@...libre.com>
Cc:     linux-clk@...r.kernel.org,
        linux-devicetree <devicetree@...r.kernel.org>,
        arm-soc <linux-arm-kernel@...ts.infradead.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...eaurora.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Sekhar Nori <nsekhar@...com>,
        Kevin Hilman <khilman@...nel.org>,
        Adam Ford <aford173@...il.com>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v8 00/42] ARM: davinci: convert to common clock framework

On 03/19/2018 08:17 AM, Bartosz Golaszewski wrote:
> 2018-03-16 3:52 GMT+01:00 David Lechner <david@...hnology.com>:
>> This series converts mach-davinci to use the common clock framework.
>>
>> The series works like this, the first 19 patches create new clock drivers
>> using the common clock framework. There are basically 3 groups of clocks -
>> PLL, PSC and CFGCHIP (syscon). There are six different SoCs that each have
>> unique init data, which is the reason for so many patches.
>>
>> 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 three patches add device tree clock support to the one SoC that
>> supports it.
>>
>> This series has been tested on LEGO MINDSTORMS EV3 (device tree) and TI
>> OMAP-L138 LCDK (both device tree and legacy board file).
>>
> 
> Hi David,
> 
> thanks, with the u-boot fix everything seems to work fine. I tested
> da850-lcdk and da850-evm boards in DT and board file modes.
> 
> I'll be working with this series in the following days and will do
> some thorough testing and rebase my aemif series on top of it. I'll
> also use the recently merged reset support for board files to get rid
> of the exported reset functions.
> 
> Thanks for your work!
> 
> Best regards,
> Bartosz Golaszewski
> 

Sounds like a good plan to me. FYI, I've started a common-clk-v9 branch
on my GitHub already with a few minor fixes.