tree 5c8c2a038f0d2b02bdb89d47873e1bee283d4e2f
parent dcad2189b3d4f405a4675c1cc4f9ce38b524a947
author Laurentiu Palcu <laurentiu.palcu@nxp.com> 1538114214 +0300
committer Ye Li <ye.li@nxp.com> 1558697348 -0700

MLK-19623: change hdmi keep-alive check mechanism

The current keep-alive check mechanism uses a static variable that is
initialized to 0. When the function is first called, it may happen to
catch the 8-bit keep-alive counter right when it overflows, hence
returning BUSY.

This patch will keep checking the counter for 10us, every 1us, but it
will immediately return if the keep-alive counter changed.

Signed-off-by: Laurentiu Palcu <laurentiu.palcu@nxp.com>
(cherry picked from commit a809d62f2060cf2e907257806bebf688ffc8c924)