Em Fri, 20 Mar 2020 15:56:16 +0100 Martin Knoblauch <knobi@xxxxxxxxxxxx> escreveu: > Hi, (sesending without attachment) > > today I tried to build 5.5.10 based on a working 5.5.6 configuration. I > also enabled v4l in the configuration using menuconfig. This resulted in > the following build error: > > AS arch/x86/boot/compressed/efi_thunk_64.o > CC arch/x86/boot/compressed/misc.o > XZKERN arch/x86/boot/compressed/vmlinux.bin.xz > ERROR: "__devm_regmap_init_i2c" [drivers/media/i2c/tvp5150.ko] undefined! > make[1]: *** [scripts/Makefile.modpost:94: __modpost] Error 1 > make: *** [Makefile:1282: modules] Error 2 > make: *** Waiting for unfinished jobs.... > > After some searching the universal support tool, I applied the following > patch: > > --- ./drivers/media/i2c/Kconfig-orig 2020-03-18 13:57:30.288639392 +0100 > +++ ./drivers/media/i2c/Kconfig 2020-03-18 16:44:03.938384192 +0100 > @@ -378,6 +378,7 @@ > config VIDEO_TVP5150 > tristate "Texas Instruments TVP5150 video decoder" > depends on VIDEO_V4L2 && I2C > + select REGMAP_I2C > select V4L2_FWNODE > help > Support for the Texas Instruments TVP5150 video decoder. > > This made my build work again. But I am absolutely not sure this is the > right fix or whether it is complete. Yes, it is. There are other places where the same select is needed. There's already a patch upstream (linux-next) addressing this issue. It should be merged for 5.7. Regards, Mauro