MISC: driver for the character LCD found in ARM refdesigns
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From: Linus Walleij on 17 Jul 2010 07:40 2010/7/17 Linus Walleij <triad(a)df.lth.se>: > This adds a driver for the character LCD found on the ARM Versatile > and RealView Platform Baseboards. It doesn't do very much more than > display the text "ARM Linux" on the first line and the linux banner > on the second line, but that's still useful. Some rebasing lost the commit comments after the patch... We discussed the placement of this driver on the ARM Linux kernel mailing list, originally it was in arch/arm/common, with arch/arm/plat-versatile recommended if it should stay in the arch/arm tree. However the overpopulation in arch/arm lead us to try and push it into drivers/. Other alternatives to drivers/misc: - Create drivers/platform/arm and put it there - Create drivers/lcd and hope for more LCD drivers - Keep it in arch/arm/plat-versatile/ Andrew, since you seem to keep an eye on drivers/misc, is it OK to merge this through Russells tree if the placement here is agreed upon? Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
From: Linus Walleij on 17 Jul 2010 18:20
2010/7/17 Ivan Kuten <ivan.kuten(a)promwad.com>: > �Hello Linus, > Any chance to sync your efforts with lcd-linux project > (http://lcd-linux.sourceforge.net/) ? If the LCD-linux people make an attempt to go into the mainline, I promise I will immediately migrate my driver out of drivers/misc and out into drivers/lcd or wherever it'll end up. I cannot drive it however, they seem to be using special hardware I haven't got access to. > They seems to have a support for HD44780 LCD controller. That's not the tricky bit of this driver actually, though there is sure code to be de-duplicated if LCD-linux is merged, ARM have some special-purpose silicon to handle the HD44780 e.g. to fire interrupts when the display responds etc. Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |