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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Jun 19, 2019 at 10:33 AM Pintu Agarwal wrote: > You can think that the version I am using right now is almost 4.9 itself. "almost 4.9" does not help, sorry. > Upgrading again to higher kernel version is again difficult, also > customer does not want it. dw-hdmi is well supported on i.MX6 with mainline, so you could simply try that. Try booting 5.1.11 on your custom board with a very minimal dts with HDMI support. Then you can test suspend/resume and see if HDMI hangs or not. > Another approach I tried is, installing hdmi {dw-hdmi.ko, > dw_hdmi-imx.ko} as a module, just after the resume. > With this also system hangs during installation of dw_hdmi-imx.ko at > below location: > > imx_drm_driver_load(..) > | > |--> component_bind_all(...) > | > |-> component_bind(ipu) > | > | > ipu_drm_bind(..) > | > |-> ipu_crtc_init(..) > | > |-> ipu_plane_irq(..) > | > | ----> << __HANGS HERE__ >> I am not able to reproduce this hang. As I mentioned yesterday suspend/resume is working just fine. We would be glad to help fixing the hang if you could reproduce it with a mainline kernel. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel