tree 9e4b4932cbaf44aff291043495d946ef8792b03d
parent e1f87a079e1920490a425b6682e7d622c884e367
author Jayesh Choudhary <j-choudhary@ti.com> 1718369079 +0530
committer Tom Rini <trini@konsulko.com> 1719244270 -0600

arm: mach-k3: j784s4: Enable QoS for DSS

Enable Quality of Service (QoS) blocks for Display SubSystem (DSS), by
servicing the DSS - DDR traffic from the Real-Time (RT) queue. This is
done by setting the DSS DMA orderID to greater than 9.

Before setting up the QoS, the ORDERID needs to be mapped to VBUSM sources
using setup_navss_nb() function call that sets the threadmap for NBSS
registers. (Section 10.2.9.2.10 "Quality of Service" in TRM[0])

Section 3.2.1 "Quality of Service (QoS)" in the TRM[0] provide more
details.

[0]: https://www.ti.com/lit/zip/spruj52

Signed-off-by: Jayesh Choudhary <j-choudhary@ti.com>