Error find my LVDS driver in imx8m mini Android OS

[Ruban1]

Error find my LVDS driver in imx8m mini Android OS

I have attached Log .

I have disabled the HDMI in my dts file and included LVDS

Even though I have disabled HDMI in Uboot its looking for HDMI only .How to config directly to get LVDS module.

i Hve attached the editted dts file also.

Kindly provide Solution

Thanks and regards

Ruban

[igorpadykov]

Hi Ruban

one can look at similar uboot configuration for sn65dsi83

https://github.com/boundarydevices/u-boot-imx6/blob/boundary-v2020.10/arch/arm/dts/imx8mmn-nitrogen8...

https://github.com/boundarydevices/u-boot-imx6/blob/boundary-v2020.10/arch/arm/dts/imx8mm-nitrogen8m...

https://github.com/boundarydevices/u-boot-imx6/blob/boundary-v2020.10/board/boundary/nitrogen8mm/nit...

Best regards
igor

[Ruban1]

I am not able to understand . My question was very simple .. where should I equate the id=0x2c and instead of probing to default adv7535 which is HDMI. i want it to search and probe to sn65dsi83 which i have added the folder in kernel and .o file is also getting generated..in kernel everything going fine . My problem is uboot.. it not recognizing the driver, Its only searching of HDMI driver which is set as default somewhere ..I am not able to find that path. Can you kindly provide the path where i can edit to probe sn65dsi83 driver.

I have attached the screenshot below Error which i want to change the value I have made it bold

[*]-Video Link 0Can't find cec device id=0x3c
fail to probe panel device adv7535@3d
failed to get any video link display timings
probe video device failed, ret -22

[0] lcdif@32e00000, video
[1] mipi_dsi@32e10000, video_bridge
[2] adv7535@3d, panel
Can't find cec device id=0x3c
fail to probe panel device adv7535@3d
failed to get any video link display timings
probe video device failed, ret -22
In: serial
Out: serial
Err: serial

Thanks and regards

Ruban

[Raghavendra]

Hi Ruban,

Greetings...!!

Even I am also facing the same issue while integrating display in uboot.

could you please help me how did you fix this issue in uboot.

Thanks,

Raghavendra

[igorpadykov]

>My problem is uboot.. it not recognizing the driver, Its only searching
>of HDMI driver which is set as default somewhere

suggest to remove all adv7535 entries in dts, like :

&i2c2 {
clock-frequency = <400000>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c2>;
scl-gpios = <&gpio5 18 GPIO_ACTIVE_HIGH>;
sda-gpios = <&gpio5 19 GPIO_ACTIVE_HIGH>;
status = "okay";

adv_bridge: adv7535@3d {
compatible = "adi,adv7533";
reg = <0x3d>;
adi,addr-cec = <0x3b>;
adi,dsi-lanes = <4>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c2_synaptics_dsx_io>;
interrupt-parent = <&gpio1>;
interrupts = <9 IRQ_TYPE_LEVEL_LOW>;
status = "disabled"; /* changed from okay to disable */

port {
adv7535_from_dsim: endpoint {
remote-endpoint = <&dsim_to_adv7535>;
};
};
};..