[media] stv090x: remove export symbol for stv090x_set_gpio()

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Drivers that use dvb_attach can have just one exported symbol,
or they will cause compilation breakages depending on the
selected frontends.

As Jim reported:
drivers/built-in.o: In function `technisat_usb2_set_voltage':
technisat-usb2.c:(.text+0x3b4919): undefined reference to `stv090x_set_gpio'
make: *** [vmlinux] Error 1

That happens because, on his configuration, the configuration
is:

	CONFIG_DVB_USB=y
	CONFIG_DVB_STV090x=m

Luis proposed ar way to fix, but that would just force the
STV090x to be selected, even if one wants to use a device
with a different frontend.

Instead, let's do the right thing: move set_gpio to the
configuration structure and fill it during dvb_attach().

This way, the driver can still call it, and dvb_attach()
will load stv090x module only if the device really needs it.

Reported by: Jim Davis <jim.epost@gmail.com>

Cc: Luis Rodriguez <mcgrof@suse.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

...

This commit is contained in:

Mauro Carvalho Chehab 2014-11-26 10:07:41 -03:00

parent 134e7e1cb3

commit a2ea556117

3 changed files with 14 additions and 16 deletions

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9

drivers/media/dvb-frontends/stv090x.c

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16

drivers/media/dvb-frontends/stv090x.h

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5

drivers/media/usb/dvb-usb/technisat-usb2.c

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