hw: hikey970: proper timing when adv7511 attaches to dsi host

Signed-off-by: Luc Ma <onion0709@gmail.com>

Author: lucmann

source/_posts/hw/hikey970.md

@@ -345,3 +345,4 @@ SD 卡启动有两个主要问题:
 - [Racing karts on a Rust GPU kernel driver](https://www.collabora.com/news-and-blog/news-and-events/racing-karts-on-a-rust-gpu-kernel-driver.html)
 - [制作 Hikey970 的 rootfs](https://github.com/lucmann/hikey970-ubuntu-image)
 - [UEFI Shell Specification](https://uefi.org/sites/default/files/resources/UEFI_Shell_Spec_2_0_Errata_A.pdf)
+- [When should ADV7511 bridge attach to DSI host](https://patchwork.kernel.org/project/dri-devel/patch/20190627151740.2277-1-matt.redfearn@thinci.com/)