I want to add support for 1280*800 and 1366*768 resolution with hdmi display on imx8mq. By reading the code，I found the pixel clock 85.5M(1366*768) and 71.1M(1280*800) was not supported. i am afraid i shouled modify table 8(t28hpc_hdmitx_clock_control_table_pixel_out) and table 9(t28hpc_hdmitx_pll_tuning_table_pixel_out) to support 85.5M and 71.M. and I have read the IMX8MDQLQRM datesheet. and it does not describe about this. How can I to config these tables?
The resolutions 3840x2160,1920x1080, 1280x720, 720x480 are support in our default BSP. For the other resolutions work you need to change the clocks accordingly to the display requirements.
Here I found the patch based on the Linux 4.14.78-1.0.0_ga version BSP. Hope can do help for you.
Thanks for your reply. I use the BSP version is Linux 4.14.98. I found my quesiton is answered on HDMI DRM custom resolution and clock frequency . They use HDMI - pixel clock calculation tools to generate coustom hdmi pixel clock. But I can not download the tools because of no authorization. Please send the tools to me, if that is convinent.
Thanks very much.
I have email to you, please check.
Thank you very much. It is useful to me.
You are welcome~~
OK, I will do confirm it and then give you reply.
Have a nice day
Which version of BSP are you using?