arm64: tegra: Add PWM fan support on Jetson Xavier

Enable PWM4 in device tree and use it to drive the PWM fan on the Jetson
Xavier.

Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding 2018-09-21 11:08:28 +02:00
commit 585423535c