Astrometa DVB-T2 not working correctly with Kernel 4.6

Astrometa DVB-T2 not working correctly with Kernel 4.6

[Ferda Mravenec]

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Hello everybody,

I own this TV stick:

https://www.linuxtv.org/wiki/index.php/Astrometa_DVB-T2

It uses different chips to decode DVB-T and DVB-T2 streams, the required 
modules are rtl2832 and mn88473.
Up until linux 4.5 it worked correctly, in 4.6 only DVB-T works.
In 4.6 the mn88473 module isn’t loaded automatically and can’t be loaded 
manually, since it doesn’t exist in the system.

In 4.6 the module has been moved from staging to dvb-frontends.
I tried to build it with

make M=drivers/media/dvb-frontends

which gave me *.ko files for the other frontends, but not for mn88473.

I attached the relevant output of dmesg.

Regards
Ferda

[-- Attachment #2: dmesg_4.5 --]
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usb 2-4: new high-speed USB device number 6 using xhci_hcd
usb 2-4: dvb_usb_v2: found a 'Astrometa DVB-T2' in warm state
usb 2-4: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
DVB: registering new adapter (Astrometa DVB-T2)
i2c i2c-8: Added multiplexed i2c bus 9
rtl2832 8-0010: Realtek RTL2832 successfully attached
mn88473: module is from the staging directory, the quality is unknown, you have been warned.
mn88473 8-0018: Panasonic MN88473 successfully attached
usb 2-4: DVB: registering adapter 0 frontend 0 (Realtek RTL2832 (DVB-T))...
usb 2-4: DVB: registering adapter 0 frontend 1 (Panasonic MN88473)...
r820t 9-003a: creating new instance
r820t 9-003a: Rafael Micro r820t successfully identified
r820t 9-003a: attaching existing instance
r820t 9-003a: Rafael Micro r820t successfully identified
rtl2832_sdr rtl2832_sdr.1.auto: Registered as swradio0
rtl2832_sdr rtl2832_sdr.1.auto: Realtek RTL2832 SDR attached
rtl2832_sdr rtl2832_sdr.1.auto: SDR API is still slightly experimental and functionality changes may follow
Registered IR keymap rc-empty
input: Astrometa DVB-T2 as /devices/pci0000:00/0000:00:14.0/usb2/2-4/rc/rc0/input17
rc rc0: Astrometa DVB-T2 as /devices/pci0000:00/0000:00:14.0/usb2/2-4/rc/rc0
usb 2-4: dvb_usb_v2: schedule remote query interval to 200 msecs
usb 2-4: dvb_usb_v2: 'Astrometa DVB-T2' successfully initialized and connected
usbcore: registered new interface driver dvb_usb_rtl28xxu
lirc_dev: IR Remote Control driver registered, major 244 
rc rc0: lirc_dev: driver ir-lirc-codec (dvb_usb_rtl28xxu) registered at minor = 0
IR LIRC bridge handler initialized

[-- Attachment #3: dmesg_4.6 --]
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usb 2-4: new high-speed USB device number 6 using xhci_hcd
usb 2-4: dvb_usb_v2: found a 'Astrometa DVB-T2' in warm state
usb 2-4: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
DVB: registering new adapter (Astrometa DVB-T2)
i2c i2c-8: Added multiplexed i2c bus 9
rtl2832 8-0010: Realtek RTL2832 successfully attached
usb 2-4: DVB: registering adapter 0 frontend 0 (Realtek RTL2832 (DVB-T))...
r820t 9-003a: creating new instance
r820t 9-003a: Rafael Micro r820t successfully identified
rtl2832_sdr rtl2832_sdr.1.auto: Registered as swradio0
rtl2832_sdr rtl2832_sdr.1.auto: Realtek RTL2832 SDR attached
SDR API is still slightly experimental and functionality changes may follow
Registered IR keymap rc-empty
input: Astrometa DVB-T2 as /devices/pci0000:00/0000:00:14.0/usb2/2-4/rc/rc0/input17
Astrometa DVB-T2 as /devices/pci0000:00/0000:00:14.0/usb2/2-4/rc/rc0
usb 2-4: dvb_usb_v2: schedule remote query interval to 200 msecs
usb 2-4: dvb_usb_v2: 'Astrometa DVB-T2' successfully initialized and connected
usbcore: registered new interface driver dvb_usb_rtl28xxu
lirc_dev: IR Remote Control driver registered, major 242 
rc rc0: lirc_dev: driver ir-lirc-codec (dvb_usb_rtl28xxu) registered at minor = 0
IR LIRC bridge handler initialized