MTK6891 双port lcm点不亮，异常打印请大家看看

wx_jvNee

MTK6891 双port LCM点不亮，异常打印请大家看看

lk阶段有个配置，不知道下面两行的区别？
params->lcm_if =  LCM_INTERFACE_DSI0;
        params->lcm_cmd_if = LCM_INTERFACE_DSI_DUAL;

另外内核一直打印：
[   29.546806] <4>-(7)[0:swapper/7][IRQ] DDP_COMPONENT_OVL0: hw reset done!
[   29.547784] <4>-(4)[0:swapper/4][IRQ] DDP_COMPONENT_DSI0: input relay unfinish
[   29.566159] <2>-(2)[0:swapper/2][IRQ] DDP_COMPONENT_DSI0: buffer underrun
[   29.567044] <3>-(3)[0:swapper/3][IRQ] DDP_COMPONENT_DSI0: buffer underrun
[   29.567917] <4>-(4)[0:swapper/4][IRQ] DDP_COMPONENT_DSI0: buffer underrun
[   29.568775] <5>-(5)[0:swapper/5][IRQ] DDP_COMPONENT_DSI0: buffer underrun
[   29.569633] <6>-(6)[0:swapper/6][IRQ] DDP_COMPONENT_DSI0: buffer underrun
[   29.570489] <7>-(7)[0:swapper/7][IRQ] DDP_COMPONENT_DSI0: buffer underrun
[   29.571358] <0>-(0)[0:swapper/0][IRQ] DDP_COMPONENT_DSI0: buffer underrun
[   29.572245] <1>-(1)[0:swapper/1][IRQ] DDP_COMPONENT_DSI0: buffer underrun
[   29.573134] <2>-(2)[0:swapper/2][IRQ] DDP_COMPONENT_DSI0: buffer underrun
[   29.574015] <3>-(3)[0:swapper/3][IRQ] DDP_COMPONENT_DSI0: buffer underrun
[   29.574886] <4>-(4)[0:swapper/4][IRQ] DDP_COMPONENT_DSI0: buffer underrun
[   29.575743] <5>-(5)[0:swapper/5][IRQ] DDP_COMPONENT_DSI0: buffer underrun
[   29.576601] <6>-(6)[0:swapper/6][IRQ] DDP_COMPONENT_DSI0: buffer underrun
[   29.576889] <7>-(7)[0:swapper/7][IRQ] DDP_COMPONENT_OVL0_2L: frame underflow! cnt=732
[   29.576904] <6>-(0)[0:swapper/0][IRQ] DDP_COMPONENT_POSTMASK0: frame underflow! cnt=792
[   29.576912] <7>-(1)[0:swapper/1][IRQ] DDP_COMPONENT_RDMA0: abnormal! cnt=788
[   29.577459] <6>-(6)[0:swapper/6][IRQ] DDP_COMPONENT_OVL0: frame underflow! cnt=785
[   29.577469] <7>-(3)[0:swapper/3][IRQ] DDP_COMPONENT_DSI0: buffer underrun
[   29.577481] <7>-(3)[0:swapper/3][IRQ] DDP_COMPONENT_DSI0: input relay unfinish
[   29.578433] <7>-(7)[0:swapper/7][IRQ] DDP_COMPONENT_OVL0_2L: hw reset done!
[   29.579432] <7>-(6)[0:swapper/6][IRQ] DDP_COMPONENT_OVL0: hw reset done!
[   29.580312] <7>-(7)[0:swapper/7][IRQ] DDP_COMPONENT_OVL0_2L: L0 not complete until EOF!
[   29.597770] <1>-(1)[0:swapper/1][IRQ] DDP_COMPONENT_DSI0: buffer underrun
[   29.598663] <2>-(2)[0:swapper/2][IRQ] DDP_COMPONENT_DSI0: buffer underrun
[   29.599546] <3>-(3)[0:swapper/3][IRQ] DDP_COMPONENT_DSI0: buffer underrun
[   29.600418] <4>-(4)[0:swapper/4][IRQ] DDP_COMPONENT_DSI0: buffer underrun
[   29.601278] <5>-(5)[0:swapper/5][IRQ] DDP_COMPONENT_DSI0: buffer underrun
[   29.602143] <6>-(6)[0:swapper/6][IRQ] DDP_COMPONENT_DSI0: buffer underrun
[   29.602999] <7>-(7)[0:swapper/7][IRQ] DDP_COMPONENT_DSI0: buffer underrun
[   29.603866] <0>-(0)[0:swapper/0][IRQ] DDP_COMPONENT_DSI0: buffer underrun
[   29.604750] <1>-(1)[0:swapper/1][IRQ] DDP_COMPONENT_DSI0: buffer underrun
[   29.605631] <2>-(2)[0:swapper/2][IRQ] DDP_COMPONENT_DSI0: buffer underrun
[   29.606512] <3>-(3)[0:swapper/3][IRQ] DDP_COMPONENT_DSI0: buffer underrun
[   29.607382] <4>-(4)[0:swapper/4][IRQ] DDP_COMPONENT_DSI0: buffer underrun

jianghuiyan

做这么高端了。不怕MTK又停产，哈哈

wx_jvNee

屏的参数设置有问题，问题解决了

bzhao

wx_jvNee 发表于 2022-7-13 13:59
屏的参数设置有问题，问题解决了

  谢谢你的回复， 我也是遇到这个问题， dsi端的timing设的不对就是这个问题！