On Fri, Sep 04, 2009 at 03:50:42, Andrew Morton wrote: > On Wed, 2 Sep 2009 19:23:27 +0530 > "Sudhakar Rajashekhara" <[email protected]> wrote: > > > On Tue, Sep 01, 2009 at 18:53:30, Pavel Machek wrote: > > > Hi! > > > > > > > On TI DA850/OMAP-L138 EVM, HD44780 (24x2) LCD panel is > > > > being used, interfaced through the SoC specific LCD > > > > interface[1]. > > > > > > > > Driver from drivers/staging/panel/panel.c works for this > > > > LCD panel but that driver expects the LCD panel to be > > > > interfaced through a parallel port. > > > > > > > > This patch implements a dummy parallel port driver which > > > > interfaces to the panel driver in staging area through the > > > > LCD interface available on SoC. > > > > > > This is a nasty hack, right? Just fixup panel.c to work with your > > > interface, too? > > > Pavel > > > > > > > Agree, that this is a hack. I have submitted a patch which modifies > > panel.c to support this kind of interface. > > > > Currently the problem with panel.c is that, it is tightly coupled > > with parallel port interface. Panel driver needs to be completely > > re-written to de-couple parallel port related stuff. If I have to > > do this, then I need to start from ground zero as I do not have a > > setup on which HD44780 panel has been interfaced using parallel > > port. But I can certainly help here by testing such a modification > > to the panel driver by testing on the hardware what I have. > > > > In the meantime, can I re-submit this patch by moving the dummy > > parallel port driver to reside in staging area? Later it can be > > moved/deleted depending on the modifications to the panel driver. > > > > If we're going to pull tricks like that then panel.c will never get > itself moved from outside staging/ :( > > Really, I don't think we should be hacking things into drivers/parport/ > code to accommodate design shortcomings in a staging/ driver. Once done, > these things have a tendency to never be undone. >
Is anyone working on cleaning up the panel driver under staging to remove dependency on parallel port? If yes, please reply to this mail, so that we can coordinate. Regards, Sudhakar _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
