> -----Original Message----- > From: Andy Shevchenko [mailto:andriy.shevchenko@xxxxxxxxxxxxxxx] > Sent: Wednesday, August 24, 2011 6:26 PM > To: Hiremath, Vaibhav > Cc: Laurent Pinchart; Ravi, Deepthy; mchehab@xxxxxxxxxxxxx; linux- > media@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; linux- > omap@xxxxxxxxxxxxxxx > Subject: RE: [PATCHv2] ISP:BUILD:FIX: Move media_entity_init() and > > > > > >> Fix the build break caused when CONFIG_MEDIA_CONTROLLER > > > > >> option is disabled and if any sensor driver has to be used > > > > >> between MC and non MC framework compatible devices. > > > > >> > > > > >> For example,if tvp514x video decoder driver migrated to > > > > >> MC framework is being built without CONFIG_MEDIA_CONTROLLER > > > > >> option enabled, the following error messages will result. > > > > >> drivers/built-in.o: In function `tvp514x_remove': > > > > >> drivers/media/video/tvp514x.c:1285: undefined reference to > > > > >> `media_entity_cleanup' > > > > >> drivers/built-in.o: In function `tvp514x_probe': > > > > >> drivers/media/video/tvp514x.c:1237: undefined reference to > > > > >> `media_entity_init' > > > > > > > > > > If the tvp514x is migrated to the MC framework, its Kconfig option > > > should > > > > > depend on MEDIA_CONTROLLER. > > > > > > > > The same TVP514x driver is being used for both MC and non MC > compatible > > > > devices, for example OMAP3 and AM35x. So if it is made dependent on > > > MEDIA > > > > CONTROLLER, we cannot enable the driver for MC independent devices. > > > > > > Then you should use conditional compilation in the tvp514x driver > itself. > > > Or > > [Hiremath, Vaibhav] No. I am not in favor of conditional compilation in > driver code. > > > > > better, port the AM35x driver to the MC API. > > > > > [Hiremath, Vaibhav] > > Why should we use MC if I have very simple device (like AM35x) which > only supports single path? I can very well use simple V4L2 sub-dev based > approach (master - slave), isn't it? > Why should you break the API in unappropriated way? [Hiremath, Vaibhav] Can you explain? Thanks, Vaibhav > > The patch is NACK, obviously. > > -- > Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> > Intel Finland Oy -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
