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Re: [PATCH] clk: pxa: pxa3xx: fix CKEN register access

From Stephen Boyd <sboyd@codeaurora.org>
Newsgroups linux.kernel
Subject Re: [PATCH] clk: pxa: pxa3xx: fix CKEN register access
Date 2015-08-04 21:10 +0200
Message-ID <pTPL3-2Fi-3@gated-at.bofh.it> (permalink)
References <pTudz-4Zd-3@gated-at.bofh.it> <pTyAy-2Qy-9@gated-at.bofh.it> <pTDTA-2iq-11@gated-at.bofh.it> <pTOFk-SZ-15@gated-at.bofh.it> <pTPi2-1RC-7@gated-at.bofh.it>
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On 08/04/2015 11:33 AM, Robert Jarzmik wrote:
> Stephen Boyd <sboyd@codeaurora.org> writes:
>
>> On 08/03/2015 11:22 PM, Robert Jarzmik wrote:
>>> Stephen Boyd <sboyd@codeaurora.org> writes:
>>>
>>>> On 08/03/2015 12:58 PM, Robert Jarzmik wrote:
>>>>> Clocks 0 to 31 are on CKENA, and not CKENB. The clock register names
>>>>> were inadequately inverted. As a consequence, all clock operations were
>>>>> happening on CKENB, because almost all but 2 clocks are on CKENA.
>>>>>
>>>>> As the clocks were activated by the bootloader in the former tests, it
>>>>> escaped the testing that the wrong clock gate was manipulated. The error
>>>>> was revealed by changing the pxa3xx-and driver to a module, where tupon
>>>>> unloading the wrong clock was disabled in CKENB.
>>>>>
>>>>> Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
>>>>> ---
>>>> Did you want a fixes tag to send this back to stable?
>>> Ah yes, good point, v2 on its way.
>>>
>>> Stephen and Mike, do you think this can still get in -rc6 ?
>>>
>> It's not a new regression for v4.2 so we'll leave it to v4.3. I'll apply it to
>> clk-next.
> Euh how so, not "new" ?
>
> The clock switch for pxa architecture happens just now, on v4.2, see [1]. So the
> regression wasn't here on v4.1, but is introduced in v4.2
>
> I know I'm terribly late, but isn't it still possible to have it in v4.2 ?
>

Ah ok. I wasn't aware that we switched on CCF for PXA this time around. 
Did the commit text mean to mention the pxa3xx-nand driver? I can fix 
that up when applying.

-- 
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a Linux Foundation Collaborative Project

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Thread

[PATCH] clk: pxa: pxa3xx: fix CKEN register access Robert Jarzmik <robert.jarzmik@free.fr> - 2015-08-03 22:10 +0200
  Re: [PATCH] clk: pxa: pxa3xx: fix CKEN register access Stephen Boyd <sboyd@codeaurora.org> - 2015-08-04 02:50 +0200
    Re: [PATCH] clk: pxa: pxa3xx: fix CKEN register access Robert Jarzmik <robert.jarzmik@free.fr> - 2015-08-04 08:30 +0200
      Re: [PATCH] clk: pxa: pxa3xx: fix CKEN register access Stephen Boyd <sboyd@codeaurora.org> - 2015-08-04 20:00 +0200
        Re: [PATCH] clk: pxa: pxa3xx: fix CKEN register access Robert Jarzmik <robert.jarzmik@free.fr> - 2015-08-04 20:40 +0200
          Re: [PATCH] clk: pxa: pxa3xx: fix CKEN register access Stephen Boyd <sboyd@codeaurora.org> - 2015-08-04 21:10 +0200
            Re: [PATCH] clk: pxa: pxa3xx: fix CKEN register access Robert Jarzmik <robert.jarzmik@free.fr> - 2015-08-04 21:20 +0200

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