On 07/12/2018 07:36 AM, Ben Dooks wrote:
Hello, we are looking at up-streaming some of the work we have
done on the tegra2 and tegra3 automotive devices. The automotive
grade devices are close the commercial parts so we would like to
discuss the core changes before submitting.
The changes are mostly with things like the clock setup and a
few peripheral quirks (IIRC these are mostly MMC).
We are proposing to change the device-tree properties for the root
node and any other affected devices from "nvidia,tegraXX" to a new
"nvidia,tegraXXa". We would welcome discussion on whether to update
all the devices at the start
An example of tegra30a.dtsi:
#include "tegra30.dtsi"
/ {
compatible = "nvidia,tegra30a";
clock@60006000 {
compatible = "nvidia,tegra30a-car";
};
}
This doesn't sound right. Auto and commercial parts are identical AFAIK;
it's just qualification differences. Hence at most you'd add an extra
compatible value and not remove the old one. Better might be to detect
this at run-time from the fuses. I think we already do some of that
already; search for speedo related code in arch/arm/mach-tegra/.
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