Re: [linux-sunxi] Re: [PATCH 4/4] simplefb: add clock handling code

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Hi,

Am 25.08.2014 15:47, schrieb Hans de Goede:
> On 08/25/2014 03:39 PM, Thierry Reding wrote:
>> On Mon, Aug 25, 2014 at 02:44:10PM +0200, Maxime Ripard wrote:
>>> On Mon, Aug 25, 2014 at 02:12:30PM +0200, Thierry Reding wrote:
>>>> On Wed, Aug 13, 2014 at 07:01:06PM +0200, Maxime Ripard wrote:
>>>>> On Wed, Aug 13, 2014 at 10:38:09AM -0600, Stephen Warren wrote:
>>>>>> If not, perhaps the clock driver should force the clock to be
>>>>>> enabled (perhaps only if the DRM/KMS driver isn't enabled?).
[...]
> As for the suggestion to simply never disable the plls / ahb gates by blocking
> them from ever being disabled in the sunxi clock driver, that is not really
> a solution either, as we want to be able to turn these things off to safe
> power on screen blank once control has been turned over to the kms driver.

Without wanting to take sides on the simplefb matter, can't you just use
clk_ignore_unused in bootargs to work around the issue at hand?
That's what I do on the Spring Chromebook.

Cheers,
Andreas

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