qingxia0702 发表于 2015-8-12 15:32:27

点亮 LP079QX1屏碰到的问题

dtsi配置文件采用内核带的lcd- LP079QX1.dtsi，firefly-rk3288.dts、rk3288.dtsi都做了相应的修改，内核与edp的相关log如下： [    0.526099] Switching to clocksource arch_sys_counter


[    0.546049] rk-fb rockchip-fb: rk fb ion client create success!
[    0.546061] rk-fb rockchip-fb: rockchip framebuffer driver probe
[    0.546442] rk-screen rk_screen.8: rockchip screen probe success
[    0.546591] rk32-lvds ff96c000.lvds: screen is not lvds/rgb!
[    0.546609] rk32-lvds: probe of ff96c000.lvds failed with error -22
[    0.547171] rk32-edp rk32-edp: rk32 edp driver probe success
[    0.547879] graphics fb0: rockchip framebuffer registerd:fb0
[    0.548188] graphics fb1: rockchip framebuffer registerd:fb1
[    0.548337] graphics fb2: rockchip framebuffer registerd:fb2
[    0.548487] graphics fb3: rockchip framebuffer registerd:fb3
[    0.558846] rk3288-lcdc lcdc0: lcdc0: dclk:205000000>>fps:60
[    0.559052] rk32-edp rk32-edp: edp pll locked
[    0.559687] rk32-edp rk32-edp: max link rate:1.62Gps max number of lanes:4
[    0.561682] rk32-edp rk32-edp: link training success.
[    0.617930] rk3288-lcdc lcdc0: wakeup from standby!
[    0.654697] alloc_buffer:ion_phy_addr=0x40000000
[    0.673007] fb0:phy:40000000>>vir:f0171000>>len:0x2500000
[    0.676533] rk3288-lcdc lcdc0: lcdc0 probe ok, iommu disabled
[    0.676701] rk3288-lcdc lcdc1: can't find power_ctr node for lcdc1
[    0.676713] rk_fb_trsm_ops_get:un supported transmitter:0!
[    0.676923] graphics fb4: rockchip framebuffer registerd:fb4
[    0.677223] graphics fb5: rockchip framebuffer registerd:fb5
[    0.677376] graphics fb6: rockchip framebuffer registerd:fb6
[    0.677530] graphics fb7: rockchip framebuffer registerd:fb7
[    0.732851] alloc_buffer:ion_phy_addr=0x42500000
[    0.732869] fb0:phy:42500000>>vir:(null)>>len:0x3800000
[    0.732884] rk3288-lcdc lcdc1: lcdc1 probe ok, iommu disabled

ps：连上液晶屏驱动板后，用万用表测量EDP的几个数据通道，电压值均在0.18V左右，然而屏并不能点亮。
求问：1.这样的log是否表示驱动已经移植成功？
         2.内核正常启动完成后背光不亮，但是让内核进入深度睡眠状态背光就会被点亮。
求大牛们指教，在线等哟

zhansb 发表于 2015-8-12 16:49:33

   2.内核正常启动完成后背光不亮，但是让内核进入深度睡眠状态背光就会被点亮。

背光控制明显反了，背光使能脚要根据硬件接法调整

qingxia0702 发表于 2015-8-12 16:58:46

哦哦，那您说的反了是指：IO口的高低有效电平反了，还是说PWM设置时从255-0的顺序反了呢？

qingxia0702 发表于 2015-8-12 17:05:14

zhansb 发表于 2015-8-12 16:49
2.内核正常启动完成后背光不亮，但是让内核进入深度睡眠状态背光就会被点亮。

背光控制明显反了，背 ...


哦哦，那您说的反了是指：IO口的高低有效电平反了，还是说PWM设置时从255-0的顺序反了呢？

zhansb 发表于 2015-8-12 17:11:51

IO口反了
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