Date: Wed, 18 Sep 2019 00:44:30 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 238037] [PATCH] Implement ig4 suspend/resume Message-ID: <bug-238037-227-ol895Uh4Lx@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-238037-227@https.bugs.freebsd.org/bugzilla/> References: <bug-238037-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=238037 --- Comment #19 from Vladimir Kondratyev <wulf@freebsd.org> --- Created attachment 207593 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=207593&action=edit ig4 suspend/resume with other improvements It is appeared that just save/restore controller registers is not enough to do a suspend/resume. Software context should be preserved too (it contains current slave address) and resume path requires polling support from ig4 as interrupts are not working at this moment at least on my laptop. I tried to address these and some others issues in my version of ig4 driver which is attached. It requires at least post r352243 current to be applied cleanly, but can be easily modified to be applicable to FBSD12 -- You are receiving this mail because: You are the assignee for the bug.help
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