文件
android_kernel_samsung_sm86…/msm/dsi/dsi_ctrl.c
Ritesh Kumar fd2dc5be06 disp: msm: dsi: enable DMA start window scheduling for broadcast commands
As per the HW requirements it is highly recommended to use DMA start window
to trigger broadcast commands. If not used then it can result in a hardware
hang with the DSI controllers going out of sync. This behavior is even more
prominent in cases of higher refresh rates.

Currently, reset_trigger_controls is called as part of next command.
Due to this, when unicast command is sent after broadcast command,
reset_trigger_controls does not get called for slave controller,
leading to issues.

As part of this change, DMA start window scheduling is enabled as default
for broadcast commands and reset_trigger_controls is done as part of
post_cmd_transfer operations.

Change-Id: I2402214ed79b376d102b88d4f7e6a06fcb5712d3
Signed-off-by: Ritesh Kumar <quic_riteshk@quicinc.com>
2022-01-12 09:57:42 +05:30

109 KiB