imx6q android6.0 mipi dsi phy lock timeout

[leeshuai]

Dear ，

        I have do  test on system deep sleep and wake-up，when system wake up,the mipi lcd can't show anything ,kernel log prompts that " mipi dsi phy lock timeout    failed to init mipi lcd"

        add debug code trace_printk as below 

      

    If  no phy lock time out, the MIPI_DSI_PHY_STATUS readed  value is 0x15BD,

      

      If  phy lock time out, it prints 0x1528

     

      refer to imx6DQRM.pdf，when phy lock timeout ,lane 0 and lane 1 not in stop state

       

     Anyone can help me ,why data lane 0 and lane 1 not in stop state,and phy lock timeout

[igorpadykov]

Hi leeshuai

what bsp and panel used in the case. One can test it on i.MX6Q Sabre SD board

with TRULY WVGA LCD Modue(TFT480800-16-E), use Demo Image

SABRE for Automotive Infotainment based on i.MX 6QuadPlus, i.MX 6Quad and i.MX 6DualLite​

For this panel one can look at sleep configuration in driver:

/* exit sleep mode and set display on */

https://source.codeaurora.org/external/imx/linux-imx/tree/drivers/video/fbdev/mxc/mxcfb_hx8369_wvga....

Best regards
igor

[leeshuai]

Dear  igorpadykov

 bsp IMX6_M6.0.1_2.1.0_ANDROID_DEMO_BSP  sabresd not  automotive

panel  TRULY WVGA LCD Modue(TFT 720 x1280)

first  phy lock time out ,  then mipi lcd failed,

that is before mipi lcd init,mipi dsi already init failed,so why mipi dsi phy lock timeout 

[leeshuai]

Dear  igorpadykov my bsp version is  https://www.nxp.com/webapp/sps/download/license.jsp?colCode=IMX6_M6.0.1_2.1.0_AN_DEMO_SD_BSP&appType... my mipi lcd panel is TRULY WVGA LCD Modue(TFT 720 x1280)