> -----Original Message----- > From: Felipe Balbi [mailto:[email protected]] > Sent: Thursday, April 08, 2010 11:20 AM > To: Shilimkar, Santosh > Cc: Balbi Felipe (Nokia-D/Helsinki); Arce, Abraham; [email protected] > Subject: Re: OMAP4 keypad driver > > On Thu, Apr 08, 2010 at 07:43:44AM +0200, ext Shilimkar, Santosh wrote: > >> -----Original Message----- > >> From: [email protected] > >> [mailto:[email protected]] On Behalf Of > Felipe > >> Balbi > >> Sent: Thursday, April 08, 2010 10:12 AM > >> To: Arce, Abraham > >> Cc: [email protected] > >> Subject: Re: OMAP4 keypad driver > >> > >> On Thu, Apr 08, 2010 at 03:16:08AM +0200, ext Arce, Abraham wrote: > >> >Hi, > >> > > >> >I need some help to figure out the best way to incorporate omap4 keypad > >> >in linux omap. > >> > > >> >First approach, I have a patch that creates a new file, omap4-keypad.c > >> >with the following > >> implementations: > >> > > >> > - Based on matrix keypac logic > >> > - Using hwmod framework > >> > - Using threaded irq > >> > > >> >Second approach, to change existing omap-keypad.c to matrix keypad > >> > > >> >Not clear on the path to follow... Thanks for your comments. > >> > >> isn't that part of the twl6030 pmic ? If so you need a better name for > >> it, something like twl6030-keypad.c > >> > >It's not. OMAP4 has it's own keyboard controller embedded. > > then why do you use threaded_irq ? If omap4 has its own keypad > controller, then sure it's memory-mapped, no ? Well, please send the > driver and we can comment further :-p Probably that's better :)
I think Abraham initial driver has top half (ISR) and bottom half (tasklet). Threaded IRQ is used to get rid-of tasklet and handle the bottom half in thread context. IIRC this was on of the intention of this new API. Regards, Santosh -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
