6 Commits

Author	SHA1	Message	Date
Michael Gmelin	0ba5622d8c	Fix ig4 operation for certain machines ... Some machine BIOSes use the I2C bus and leave it in a state that causes interrupts to not work properly due to a pending interrupt having been latched. Refactor the code a bit to clear pending interrupts when I2C is enabled. This fixes the primary problem. Also fix a possible race condition in the interrupt handler where the interrupt was being cleared after reading the status instead of before. Reported by: pfg Reviewed by: jhb Approved by: jhb Obtained from: DragonFly BSD Differential Revision: https://reviews.freebsd.org/D6586	2016-05-30 09:05:24 +00:00
Pedro F. Giffuni	453130d9bf	sys/dev: minor spelling fixes. ... Most affect comments, very few have user-visible effects.	2016-05-03 03:41:25 +00:00
John Baldwin	59e4a8cd1c	Use DELAY() instead of sleeping during boot-time attach. ... Tested by: Wolfgang Zenker <wolfgang@lyxys.ka.sub.org>	2016-04-09 20:18:34 +00:00
Michael Gmelin	12e413be27	Allow building a kernel with baked in ig4, isl and cyapa drivers. ... Also addresses jhb's remarks on D2811 and D3068. PR: 202059 Differential Revision: https://reviews.freebsd.org/D3351 Reviewed by: jhb Approved by: jhb	2015-08-19 09:49:29 +00:00
Michael Gmelin	4cd6abddcd	Protect smbus ioctls in ig4 driver using a shared lock. ... Document locking semantics. Differential Revision: https://reviews.freebsd.org/D2744 Reviewed by: jah, kib Approved by: kib	2015-06-25 07:52:51 +00:00
Michael Gmelin	71d51719ea	ig4 - Intel fourth gen integrated I2C SMBus driver. ... Differential Revision: https://reviews.freebsd.org/D2372 Reviewed by: jhb, wblock, adrian Approved by: jhb, wblock Relnotes: yes	2015-05-30 12:17:18 +00:00