[PATCH RFC 06/15] drm/armada: move variant initialisation to CRTC init

On Sun, Jul 06, 2014 at 11:46:56AM +0200, Sebastian Hesselbarth wrote:

On 07/05/2014 02:21 PM, Russell King - ARM Linux wrote:

quoted

There's also the issue whether the output can cope with fractional
clock-skipping dividers - entirely synchronous display systems can
(such as synchronously clocked LCD panels), but asynchronous display
systems (such as HDMI, TV out, etc) can't.  That said, the other
parameter that needs to be taken account of here is that even with the
fractional divider, the minimum output clock period isn't the average
frequency, but the maximum frequency, which may violate a panel's minimum
clock period specification.

Yeah, the fractional divider isn't made for external HDMI transmitters
for sure. I have seen from your branch that there is some Armada 610
stub for OLPC, do they have a dumb panel directly connected?

I believe they do have a dumb panel connected directly.  I've asked
Jon what the status of OLPC is with mainline kernels, and how difficult
it would be to get to the stage where the 610 stuff could be finished
off.

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