msm: mdss: fix display port crash caused by hpd_irq attention event

When adb shell stop operation is performed with display port sink
connected, after the framebuffer is closed on display port device,
there are cases where an attention event is sent by the display port
adapter with hpd = 1 and hpd_irq = 1. This causes unclocked register
access while handling hpd_irq event since the DP link is shutdown.
Add a check to handle hpq_irq event only if DP host is initialized.

Change-Id: Icdb06f23b6d124d8bfdad2b1dd5e296df491be15
Signed-off-by: Padmanabhan Komanduru <pkomandu@codeaurora.org>

0 files changed, 0 insertions, 0 deletions