Sd820-display issue-mdss_extpclk_clk status stuck at 'off'


#1

Hi all,
need help on this.

HDMI is not coming up because of clock failure.

i can see clocks extpclk are not getting enabled. kindly help.

$cat /sys/kernel/debug/clk/extpclk_clk_src/clk_enable_count (This is parent clock)
0

$cat /sys/kernel/debug/clk/mdss_extpclk_clk/clk_enable_count
0

and crash logs:
mdss_extpclk_clk status stuck at ‘off’
[ 4.825572] ------------[ cut here ]------------
[ 4.825586] WARNING: CPU: 1 PID: 46 at drivers/clk/qcom/clk-branch.c:100 clk_branch_toggle+0x130/0x140
[ 4.825588] Modules linked in:
[ 4.825596] Hardware name: Qualcomm Technologies, Inc. DB820c (DT)
[ 4.825603] Workqueue: events deferred_probe_work_func
[ 4.825607] task: ffff8000f9341c00 task.stack: ffff000009bd0000
[ 4.825610] PC is at clk_branch_toggle+0x130/0x140
[ 4.825613] LR is at clk_branch_toggle+0x130/0x140
[ 4.825615] pc : [] lr : [] pstate: 200001c5