4 ms·
The Foundation doesn't make the SoCs, Broadcom does.
by PedroBatista 6y ago
The Foundation doesn't make the SoCs, Broadcom does.
- neilpanchal 6y agoAlso, its not possible to write your own DSI/MIPI drivers for a phone LCD that you can buy on eBay, partly for not having the DSI/MIPI specification unless you pay upwards of thousands of dollars a year and Raspberry Pi doesn't allow access to the DSI/MIPI HAL layer - its part of the SOC which Broadcom controls. About the only way to make a device with an LCD is to use the built-in HDMI.
- stefan_ 6y agoNothing they can do about the specification. There is a DSI driver in the proprietary firmware, but there is also an open-source upstream version: https://github.com/anholt/linux/wiki/Raspberry-Pi-and-other-MIPI-DSI-display-panels https://github.com/anholt/linux/wiki/Raspberry-Pi-and-other-... This is a theme with the RPi. They generally implement new hardware in their proprietary firmware first, for lack of skills/time to do a proper upstream job of it (or the convience of copy-pasting some vendor code), then pay someone to develop an open-source driver. For example, here is a massive 80 patch series nearing merge for the new display pipeline in the RPi 4: https://patchwork.freedesktop.org/series/73839/ https://patchwork.freedesktop.org/series/73839/
- userbinator 6y agopartly for not having the DSI/MIPI specification unless you pay upwards of thousands of dollars a year There is a little thing called Google... ;-)
- OJFord 6y agoAh ok - I misinterpreted the scope/emphasis. It is open to a degree: https://www.raspberrypi.org/documentation/hardware/raspberrypi/schematics/README.md https://www.raspberrypi.org/documentation/hardware/raspberry...