Hi Arnd, Thank you for the patch. On Wed, Jan 03, 2024 at 04:58:05PM +0100, Arnd Bergmann wrote: > From: Arnd Bergmann <arnd@xxxxxxxx> > > The recently added driver uses the firmware loader mechanism but causes > a link failure when that is in a loadable module while thp7312 itself > is built-in: > > arm-linux-gnueabi-ld: drivers/media/i2c/thp7312.o: in function `thp7312_probe': > thp7312.c:(.text+0x4164): undefined reference to `firmware_upload_register' > > Select the required Kconfig symbol. Note that the driver specifically > needs the firmware upload interface that is controlled by CONFIG_FW_UPLOAD, > but there is no link failure when that is disabled because the interfaces > are stubbed out here. > > Fixes: 7a52ab415b43 ("media: i2c: Add driver for THine THP7312") > Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> I've posted a similar fix yesterday, see https://lore.kernel.org/linux-media/20240102074518.24968-1-laurent.pinchart@xxxxxxxxxxxxxxxx What approach do you think is best ? > --- > drivers/media/i2c/Kconfig | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig > index 78a87331686e..4c3435921f19 100644 > --- a/drivers/media/i2c/Kconfig > +++ b/drivers/media/i2c/Kconfig > @@ -674,6 +674,7 @@ menu "Camera ISPs" > config VIDEO_THP7312 > tristate "THine THP7312 support" > depends on I2C > + select FW_LOADER > select MEDIA_CONTROLLER > select V4L2_CCI_I2C > select V4L2_FWNODE -- Regards, Laurent Pinchart