mipi-dsi does not probe on imx8mq

minhaj_ahmad — Wed, 27 Jul 2022 09:12:18 GMT

Hi,

I have been working on imx8mq with custom board and trying to probe my mipi-dsi display on kernel version 5.4.142

The display I am using is MODEL : KWH101KQ14-C01 by Formike which has ili9881c as driver IC.

Attached my dtsi file for mipi-dsi.

After loading then attached dtsi my boot hangs with the below log

[ 1.205487] gpio-148 (scl): enforced open drain please flag it properly in DT/ACPI DSDT/board file
[ 1.215511] i2c i2c-3: IMX I2C adapter registered
[ 1.221609] pwm-backlight backlight: backlight supply power not found, using dummy regulator
[ 1.234558] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 1.241190] [drm] No driver support for vblank timestamp query.
[ 1.248443] ili9881c-dsi 30a00000.mipi_dsi.0: 30a00000.mipi_dsi.0 supply power not found, using dummy regulator
[ 1.258657] nwl-dsi 30a00000.mipi_dsi: [drm:nwl_dsi_host_attach] lanes=4, format=0x0 flags=0x4
[ 1.267330] nwl-dsi 30a00000.mipi_dsi: [drm:imx8mq_dsi_select_input] Using DCSS as input source
[ 1.276181] imx-cpufreq-dt imx-cpufreq-dt: cpu speed grade 2 mkt segment 2 supported-hw 0x4 0x4
[ 1.313231] mmc0: SDHCI controller on 30b40000.mmc [30b40000.mmc] using ADMA
[ 1.321766] imx6q-pcie 33800000.pcie: couldn't get pcie-phy
[ 1.323070] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 1.327460] imx6q-pcie 33800000.pcie: 33800000.pcie supply epdev_on not found, using dummy regulator
[ 1.333991] [drm] No driver support for vblank timestamp query.
[ 1.350170] [drm] Initialized imx-dcss 1.0.0 20190917 for 32e00000.display-controller on minor 1

Can anyone let me know how to resolve this issue.

Re: mipi-dsi does not probe on imx8mq

joanxie — Tue, 02 Aug 2022 04:02:04 GMT

I have updated this case with amol Chava, pls share the information with him

topic Re: mipi-dsi does not probe on imx8mq in i.MX Processors

mipi-dsi does not probe on imx8mq

Re: mipi-dsi does not probe on imx8mq