HDMI IAHB clock was capable of being disabled twice consecutively
due to a race condition between enabling the HDMI interrupts
and disabling the HDMI clock. A spinlock has been added to protect
against the race condition.
Another race condition was present due to the driver handling
HPD (hotplug detect) and RX Sense interrupts separately. Only HPD
interrupts handled now, simplifying enable/disable flow and
eliminating the race condition.
One final race condition fixed during HDMI driver initialization.
IRQ request moved to after place where IAHB is disabled, to ensure
balanced enable/disable of IAHB clock.
Signed-off-by: Danny Nold <dannynold@freescale.com>
projects / karo-tx-linux.git / commit