topic No MIPI DSI clock available in i.MX Processors https://community.nxp.com/t5/i-MX-Processors/No-MIPI-DSI-clock-available/m-p/581129#M88401 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P>I am trying to run a MIPI DSI display on savageboard-quad of which processor is imx6q. I am using the Yocto release provided by saveboard site. Kernel Version is 3.0.35. I have enabled MIPI DSI host controller driver and Himax HX8369A MIPI DSI panel in Kernel configuration. I am using Himax HX8394F MIPI DSI panel. So I ported current&nbsp; HX8369A code for HX8394F.</P><P></P><P>I can see that the driver is probed and initialized in the kernel logs. But LCD_ID is not read at all. I got 0x00 for LCD_ID. I analyzed the signals with scope. Data lane signals seem to have expected waveforms. But MIPI DSI clock signals are not as I would expect. Both have 1V DC for a long time, than it toggles, and goes back to 0V and stay still.</P><P></P><P>What can be the reason beyond No MIPI DSI clock issue? I tried to trace video_27m_clk_root in the kernel, but no clue at all.</P><P></P><P>Regards,</P><P>Seniz</P></BODY></HTML> Mon, 08 Aug 2016 10:59:41 GMT senizhuseyin 2016-08-08T10:59:41Z No MIPI DSI clock available https://community.nxp.com/t5/i-MX-Processors/No-MIPI-DSI-clock-available/m-p/581129#M88401 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P>I am trying to run a MIPI DSI display on savageboard-quad of which processor is imx6q. I am using the Yocto release provided by saveboard site. Kernel Version is 3.0.35. I have enabled MIPI DSI host controller driver and Himax HX8369A MIPI DSI panel in Kernel configuration. I am using Himax HX8394F MIPI DSI panel. So I ported current&nbsp; HX8369A code for HX8394F.</P><P></P><P>I can see that the driver is probed and initialized in the kernel logs. But LCD_ID is not read at all. I got 0x00 for LCD_ID. I analyzed the signals with scope. Data lane signals seem to have expected waveforms. But MIPI DSI clock signals are not as I would expect. Both have 1V DC for a long time, than it toggles, and goes back to 0V and stay still.</P><P></P><P>What can be the reason beyond No MIPI DSI clock issue? I tried to trace video_27m_clk_root in the kernel, but no clue at all.</P><P></P><P>Regards,</P><P>Seniz</P></BODY></HTML> Mon, 08 Aug 2016 10:59:41 GMT https://community.nxp.com/t5/i-MX-Processors/No-MIPI-DSI-clock-available/m-p/581129#M88401 senizhuseyin 2016-08-08T10:59:41Z