Thanks, Vaibhav Hiremath > -----Original Message----- > From: linux-omap-owner@xxxxxxxxxxxxxxx [mailto:linux-omap- > owner@xxxxxxxxxxxxxxx] On Behalf Of Premi, Sanjeev > Sent: Wednesday, January 07, 2009 8:52 PM > To: Richard Purdie > Cc: linux-omap@xxxxxxxxxxxxxxx > Subject: RE: [PATCH] Backlight driver for omap3evm > > > > -----Original Message----- > > From: Richard Purdie [mailto:rpurdie@xxxxxxxxx] > > Sent: Wednesday, January 07, 2009 8:37 PM > > To: Premi, Sanjeev > > Cc: linux-omap@xxxxxxxxxxxxxxx > > Subject: Re: [PATCH] Backlight driver for omap3evm > > > > On Wed, 2009-01-07 at 20:25 +0530, Sanjeev Premi wrote: > > should be done in the platform code for the board, not in the > > general driver. If you do that, you should be able to reuse > > most of the generic-bl device code. > > I tried so, but wasn't able to get the Kconfig dependencies right to > get 'generic-bl' into my build. Hence, removed the code that I > believed to be generic (since yesterday's mail) and created the > patch. > > Will give another try. > [Hiremath, Vaibhav] Now I will be following up for OMAP3EVM backlight driver patch initiated/posted by Sanjeev. I was just referring to the backlight drives currently available under Linux tree, and observed that almost all drivers have been implemented in different way. I could not able to get one driver to which I can refer to for adding support for OMAP3EVM backlight driver. Can anybody tell me the expected way of implementation for backlight driver is? I have some questions here, - If I understand correctly (and as mentioned and pointed out by Richard in the mail-chain), platform_device should get added in platform file where it registers the pointer to the structure "struct generic_bl_info". This I believe should be standard way everybody should follow, which is not the case. Am I missing something here? - The below question may sound foolish, but to is important for me to understand the framework. If I have simple and straight control of backlight, do I really required to have separate backlight driver for my platform? Can I make use of generic-bl driver? The only difference (atleast to my platform) would be the SYSFS entry, the entry will get created something like /sys/class/backlight/generic-bl/ Is it required to make driver, Power aware and differentiate from generic driver? Do we have any document on backlight driver framework? > > > > Regards, > > > > Richard > > > > > > -- > To unsubscribe from this list: send the line "unsubscribe linux- > omap" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
