Re: PROBLEM: Asus C201 video mode problems on HDMI hotplug (regression)
From: Nick Bowler
Date: Mon Dec 04 2017 - 14:30:18 EST
Hi,
On 2017-12-04 21:06 +0200, Laurent Pinchart wrote:
> As you reported that the PLL lock failure message is not printed, the
> failure can only come from either the extra delay introduced by the
> above loop, or from reading the HDMI_PHY_STAT0 register.
>
> How many iterations of the for loop execute before the condition
> becomes true?
Judging from the log posted elsethread (where I added extra printouts),
it seems to consistently become true on the second iteration.
I will try to rule out read side effects by replacing the polling loop
with an unconditional delay.
Cheers,
--
Nick Bowler