[PATCH] drm/dp: Use large transactions for I2C over AUX
Dave Airlie
airlied at gmail.com
Tue Feb 10 21:36:29 PST 2015
On 11 February 2015 at 04:42, Simon Farnsworth
<simon.farnsworth at onelan.co.uk> wrote:
> A note:
>
> This is *not* enough to bring us to parity with Windows with these
> adapters. There's also something wrong with our HPD handling that trips them
> up - I suspect, based on AUX traces from one that's happy, that it's our
> handling of short HPDs that's imperfect, as the device does a short HPD when
> it sees the DVI-D HPD sense change.
>
We don't handle soft irqs well outside of MST, I think the Apple VGA dongle
also causes a soft irq when you plug a vga monitor into the dongle, when
the dongle is already plugged in.
Dave.
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