On Mon, 2017-02-13 at 10:52 +0100, Maxime Ripard wrote: > On Sat, Feb 11, 2017 at 12:08:40PM +0000, Bob Ham wrote: > > On IRC, MoeIcenowy requested the contents > > of /sys/kernel/debug/clk/clk_summary. I don't know how useful it will > > be but I've put up two versions, one from the bad commit and another > > from the previous, good commit in the bisect: > > > > http://settrans.net/~rah/misc/sun6i-a31-bad-fb-clk_summary-good.txt > > http://settrans.net/~rah/misc/sun6i-a31-bad-fb-clk_summary-bad.txt > > Are you sure the good one works? None of the display clocks are > enabled.
Definitely. Here's clk_summary from an even earlier kernel from Debian, 4.7.8-1: http://settrans.net/~rah/misc/sun6i-a31-bad-fb-clk_summary-good-4.7.8-1.txt And to make super sure, he's a *screenshot* of a terminal in X running on that kernel, showing every line with "0" in the second column: http://settrans.net/~rah/misc/sun6i-a31-bad-fb-clk_summary-good-4.7.8-1.png Does this imply something odd in this hardware or a problem with the kernel? > Could you add "clk_ignore_unused" to the kernel boot parameters and > see if it works? That does indeed work. On the same kernel which produced sun6i-a31-bad-fb-clk_summary-bad.txt, with clk_ignore_unused added to the boot parameters, the console continues to show output all through booting and X runs fine. Here is the clk_summary: http://settrans.net/~rah/misc/sun6i-a31-bad-fb-clk_summary-clk_ignore_unused.txt Can I ask what clk_ignore_unused does that might have fixed this? Thanks, Bob -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
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