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openwrt/target/linux/ar71xx
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Koen Vandeputte 55b4b1eba0 ar71xx: fix USB switch to mPCIE for Mikrotik rb91x boards 
Some devices like the Mikrotik RB912 only have 1 USB port
which is shared between an USB A type port, and the mini PCIe socket.

Toggling a gpio selects the output to which USB is connected.

Since kernel 4.9, gpio base is rounded up to a value of 32.

Commit 65da6f9ca1 ("ar71xx: fix secondary gpio controller base values") accounts correctly for that.
In this commit, rb912 sees it's value changed from AR934X_GPIO_COUNT (23) to 32
This means that the USB toggle gpio number actually also changes from 52 to 61.

But ..
Some of these GPIO numbers are also used in other locations, like the boardfile.
The author forgot to also change them over there.

Switching the USB port to mPCIe now shows my modem is correctly discovered again:

[ 2863.864471] usb 1-1: new high-speed USB device number 4 using ehci-platform
[ 2864.055303] usb 1-1: config 1 has an invalid interface number: 8 but max is 3
[ 2864.062728] usb 1-1: config 1 has no interface number 1
[ 2864.074567] qcserial 1-1:1.0: Qualcomm USB modem converter detected
[ 2864.081474] usb 1-1: Qualcomm USB modem converter now attached to ttyUSB0
[ 2864.111960] qcserial 1-1:1.2: Qualcomm USB modem converter detected
[ 2864.118976] usb 1-1: Qualcomm USB modem converter now attached to ttyUSB1
[ 2864.139808] qcserial 1-1:1.3: Qualcomm USB modem converter detected
[ 2864.146777] usb 1-1: Qualcomm USB modem converter now attached to ttyUSB2
[ 2864.165276] qmi_wwan 1-1:1.8: cdc-wdm0: USB WDM device
[ 2864.171879] qmi_wwan 1-1:1.8 wwan0: register 'qmi_wwan' at usb-ehci-platform-1, WWAN/QMI device, 02:00:44:ed:3b:11

Fixes: 65da6f9ca1 ("ar71xx: fix secondary gpio controller base values")

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Cc: Robin Leblon <robin.leblon@ncentric.com>
Cc: Felix Fietkau <nbd@nbd.name>
 		6 years ago
..
base-files ar71xx: fix USB switch to mPCIE for Mikrotik rb91x boards 6 years ago
files ar71xx: add support for OCEDO Koala 6 years ago
generic ar71xx: add support for OCEDO Koala 6 years ago
image ar71xx: add support for OCEDO Koala 6 years ago
mikrotik ar71xx: reorganize kernel configuration 7 years ago
nand ar71xx: reorganize kernel configuration 7 years ago
patches-4.9 kernel: bump to 4.9.105 6 years ago
tiny ar71xx: create new ar71xx/tiny subtarget for 4MB flash devices 7 years ago
Makefile ar71xx: create new ar71xx/tiny subtarget for 4MB flash devices 7 years ago
config-4.9 ar71xx: add support for OCEDO Koala 6 years ago
modules.mk ar71xx: add LED driver NU801 9 years ago