Stefani Seibold 748103e723 drivers/video/i810/i810-i2c.c: fix i2c bus handling ... These patch fix a longstanding bug in the i810 frame buffer driver. The handling of the i2c bus is wrong: A 1 bit should not written to the i2c, these will be done by switch the i2c to input. Driving an 1 bit active is against the i2c spec. An active driven of a 1 bit will result in very strange error, depending which side is the more powerful one. In my case it depends on the temperature of the Display-Controller-EEprom: With an cold eprom a got the correct EDID datas, with a warm one some of the 1 bits was 0 :-( The same bug is also in the intelfb driver in the file drivers/video/intelfb/intelfb_i2c.c. The functions intelfb_gpio_setscl() and intelfb_gpio_setsda() do drive the 1 bit active to the i2c bus. But since i have no card which is used by the intelfb driver i cannot fix it. Signed-off-by: Stefani Seibold <stefani@seibold.net> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>		2011-01-06 15:52:19 +09:00
..
i810_accel.c
i810_dvt.c	i810fb: fix stack exploding	2009-12-16 07:20:02 -08:00
i810_gtf.c
i810_main.c	i810fb: fix regression with uninitalized fb_info->mm_lock mutex	2009-07-08 09:19:49 -07:00
i810_main.h
i810_regs.h
i810-i2c.c	drivers/video/i810/i810-i2c.c: fix i2c bus handling	2011-01-06 15:52:19 +09:00
i810.h	i2c: Remove unneeded inclusions of <linux/i2c-id.h>	2010-10-24 18:16:58 +02:00
Makefile