On Thu, Dec 08, 2016 at 04:21:34PM +0100, Daniel Vetter wrote: > [back from my walk, the sunset here is stellar ;-)] > > On Thu, Dec 08, 2016 at 03:44:30PM +0100, Geert Uytterhoeven wrote: > > Hi Thomas, > > > > On Thu, Dec 8, 2016 at 3:37 PM, Thomas Petazzoni > > <thomas.petazzoni@xxxxxxxxxxxxxxxxxx> wrote: > > > On Thu, 8 Dec 2016 15:22:09 +0100, Geert Uytterhoeven wrote: > > >> > Wut. We have like 20+ small atomic drivers nowdays. > > >> > > >> That's fast! Only two weeks ago you said: > > >> > > >> | Bummer, they still haven't landed. But afaik there's at least 4 of > > >> | them floating around in various places ... > > > > > > You're not talking about the same thing I believe. > > > > > > When Daniel says "small atomic drivers", he talks about the relatively > > > small DRM drivers for SoC display controllers, such as the ones you can > > > find in ARM SoCs. > > > > > > When you say "small driver", you're thinking about drivers for I2C or > > > SPI connected displays. > > > > No, I wasn't thinking about I2C or SPI connected displays, but about simple > > dumb memory-mapped frame buffers, which is what fbdev was initially > > developed for. > > Yeah, small drivers like these we have piles now, things exploded a lot > after atomic landed two years ago. And they seem to shrink with every > release a bit more (since lots more drivers gives you lots more insight > into what other refactorings would make sense). Those we have a big pile > of, and nowadays (at least with developers expirienced with upstream, but > not necessarily with drm) it takes but a few weeks from initial submission > to getting them merged. > > What we don't yet have a nice tidy example driver of is the even simpler > "dumb framebuffer behind a slow bus with explicit/manual upload", for like > small i2c/spi panels (and conceptually also usb, even though there bw and > panel size are a bit scaled up). We've gained some really nice helpers for > this this year, and there's 3 drivers in-flight to make use of it. But > since that's right now just a hobbyist effort it's moving a bit slower > (and I was mistaken a few weeks back where I assumed that one of them > landed already). Correction, MXSFB just landed, which is the first driver using the simple display pipe helpers. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch -- To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
