[PATCH 00/32] raspberry pi 3 patch series

Gerd Hoffmann kraxel at redhat.com
Thu Jun 2 02:31:40 PDT 2016


> > Patches 20-32 are for the wifi.  Mostly from Eric's bcm2837-wireless
> > branch.  They clearly need some more love, but do the job for now.
> I just came up with a fix that should replace patch #29, which means
> I'll trust the expander stuff a lot more.  With the expander working,
> you should be able to use pin 4 on it for HDMI hotplug detect, at which
> point graphics should work.

Tried that.  i2c not working.  There seems to be a disagreement who owns
gpio pin 45:

[root at pi-three linux]# dmesg | grep i2c
[    2.354380] i2c /dev entries driver
[    3.496734] pinctrl-bcm2835 3f200000.gpio: pin gpio45 already
requested by 3f20c000.pwm; cannot claim for 3f205000.i2c
[    3.512506] pinctrl-bcm2835 3f200000.gpio: pin-45 (3f205000.i2c)
status -22
[    3.540488] i2c-bcm2835 3f205000.i2c: Error applying setting, reverse
things back
[    4.551683] i2c-bcm2835 3f205000.i2c: i2c transfer timed out
[    4.574599] i2c-bcm2835 3f805000.i2c: Could not read clock-frequency


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