On 04/03/2019 1:05 PM, Linus Walleij wrote: > On Mon, Mar 4, 2019 at 11:37 AM Jean Nicolas GRAUX > <jean-nicolas.graux@xxxxxx> wrote: >> On 04/03/2019 11:00 AM, Linus Walleij wrote: >>> Out of curiosity: what platform are you using this on? >> That's for the STMicro STA1295/STA1385 SoCs which make use of several >> ARM amba peripherals as well as nomadik gpio/pinctrl, etc ... >> Those machines are unfortunately not available upstream. I would like to >> allocate time for that but as you know, >> such activity require to dedicate substantial time & human resource. And >> we failed to find enough time for that up to now. > That's OK, very nice to know that some of these drivers/IPs are in > active use. It looks like siblings to Cartesio, so I assume they are > closer to Nomadik than Ux500? Yes, STA1295/STA1385 are SoCs for car radio & telematics market and it came after Cartesio SoC. So while it share some IPs with the ux500 (like pl08x, pl18x, pl011, pl022, nmk-gpio, nmk-i2c, nmk-mtu, fsmc-nand, ...), I guess you are right saying that it's closer to Nomadik architecture. > > I am testing Nomadik a lot since the NHK15 development board has > very nice form factor, and I try to keep Ux500 running as well. And honestly we benefit from your hard work. Thank you for that. > > I recently submitted the Ux500 MCDE (multi-channel display engine) > graphics driver for review and I'm working on it, I don't know if this > series is using the old PL111-derivative (already supported by DRM), > MCDE or something else, would be nice to know so I know if I shall > put you in review for it :) > https://patchwork.freedesktop.org/patch/284491/ Unfortunately, STA SoCx do not rely on the MCDE engine but on STM LTDC that is also used by some STM32 SoC. (devicetree/bindings/display/st,stm32-ltdc.txt). I know almost nothing about display but as far as I remember, MCDE is known to be a quite complex peripheral! Congratulations for taking up of such a challenging task. Regards, Jean-Nicolas. > > Yours, > Linus Walleij
