MIPI-DSI power state issue

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MIPI-DSI power state issue

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deven_solanki
Contributor III

Hi Community,

I am exploring power state modes in imx7d-sabresd board with TFT3P5581-E MIPI display from NXP. I am using default binaries from L4.9.11_1.0.0_iMX6UL7D, and imx7d-sdb-mipi-dsi.dtb as a DTB.

The issue I am facing is, when I am going to any power state mode(standby, freeze, mem) and again coming back from power save mode using ON/OFF switch on board.

I am getting below error and my MIPI LCD also doesn't showing anything.

root@imx6ul7d:~# echo mem > /sys/power/state
PM: Syncing filesystems ... done.
Freezing user space processes ... (elapsed 0.001 seconds) done.
Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
Suspending console(s) (use no_console_suspend to debug)
PM: suspend of devices complete after 816.863 msecs
PM: suspend devices took 0.810 seconds
PM: late suspend of devices complete after 1.062 msecs
PM: noirq suspend of devices complete after 1.083 msecs
Disabling non-boot CPUs ...
CPU1: shutdown
Enabling non-boot CPUs ...
CPU1 is up
PM: noirq resume of devices complete after 0.562 msecs
PM: early resume of devices complete after 0.577 msecs
mxc_mipi_dsi_samsung 30760000.mipi-dsi: wait tx done timeout!
mxc_mipi_dsi_samsung 30760000.mipi-dsi: mipid_hx8363_lcd_setup ERR: ret:-110, line:178.
mxc_mipi_dsi_samsung 30760000.mipi-dsi: failed to init mipi lcd.
mxsfb 30730000.lcdif: failed to enable dispdrv:mipi_dsi_samsung
PM: resume of devices complete after 462.565 msecs
PM: resume devices took 0.460 seconds
Restarting tasks ... done.
-sh: echo: write error: Device or resource busy
root@imx6ul7d:~# mxc_mipi_dsi_samsung 30760000.mipi-dsi: wait tx done timeout!
mxc_mipi_dsi_samsung 30760000.mipi-dsi: mipid_hx8363_lcd_setup ERR: ret:-110, line:175.
mxc_mipi_dsi_samsung 30760000.mipi-dsi: failed to init mipi lcd.
mxsfb 30730000.lcdif: failed to enable dispdrv:mipi_dsi_samsung

Same error for freeze and standby also.

Can anyone help me with this issue.

Thanks in advance,

Solanki Deven

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4 Replies

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Yuri
NXP Employee
NXP Employee

Hello,

    Is the  power state issue the only problem with the MIPI display?

All the rest is working?  Rev.C of the SDB may require some rework.


Have a great day,
Yuri

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deven_solanki
Contributor III

Hi Yuri,

I am using REV D of SDB board.

Yes, power state issue is only with MIPI DSI.

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Yuri
NXP Employee
NXP Employee

Hello,

  I've sent You mail (to check rework).

Regards,

Yuri.

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deven_solanki
Contributor III

Hi Yuri,

Thanks for your immediate reply. I will check it and update you soon.

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