410c用cmd屏出错

[qq_30457717]

410c上使用command mode的屏出现如下错误：

<4>[ 90.292562] ------------[ cut here ]------------

<4>[ 90.296150] WARNING: at /lpartition/410c/APQ8016_410C_LA.BR.1.2.4-00310-8x16.0_5.1.1_Lollipop_P2/kernel/drivers/video/msm/mdss/mdss_mdp_intf_cmd.c:616 mdss_mdp_cmd_wait4pingpong+0x254/0x38c()

<6>[ 90.313210] cmd kickoff timed out (0) ctl=0

<6>[ 90.313216] Modules linked in:

<6>[ 90.313228] CPU: 0 PID: 288 Comm: mdss_fb0 Not tainted 3.10.49-g3339759-00001-g7309394-dirty #6

<6>[ 90.313233] Call trace:

<6>[ 90.313244] [<ffffffc000206a2c>] dump_backtrace+0x0/0x270

<6>[ 90.313252] [<ffffffc000206cac>] show_stack+0x10/0x1c

<6>[ 90.313261] [<ffffffc000bf5d70>] dump_stack+0x1c/0x28

<6>[ 90.313270] [<ffffffc00021a928>] warn_slowpath_common+0x74/0x9c

<6>[ 90.313277] [<ffffffc00021a99c>] warn_slowpath_fmt+0x4c/0x58

<6>[ 90.313286] [<ffffffc0004b03ec>] mdss_mdp_cmd_wait4pingpong+0x250/0x38c

<6>[ 90.313293] [<ffffffc000498e94>] mdss_mdp_display_commit+0x748/0xae4

<6>[ 90.313301] [<ffffffc0004b88a8>] mdss_mdp_overlay_kickoff+0x660/0xadc

<6>[ 90.313309] [<ffffffc0004d8adc>] __mdss_fb_display_thread+0x12c/0x2c4

<6>[ 90.313318] [<ffffffc00023bdc8>] kthread+0xac/0xb8

<4>[ 90.313323] ---[ end trace 5d5ba73d2c1926db ]---

<3>[ 90.317755] __mdss_fb_sync_buf_done_callback: mdp-fence: frame timeout

<4>[ 90.324309] mdss_mdp_irq_enable: MDSS MDP IRQ-0x100 is already set, mask=1100

导致花屏，没有RGB数据输出，各位亲，遇到过这问题吗？

[weixin_38498942]

这个应该是DMA传输超时导致，首先检查一下下发的是什么cmd，另外dts里面对屏的初始化是否正确