Hello all,
My test env:
HW: iMX8QXP MEK revB board
iMX-lvds-hdmi connect to MEK board DSI1/LVDS1 sock
SW: yocto branch imx-linux-zeus with manifest imx-5.4.3-2.0.0.xml
1. flash binary to mek board
2. on u-boot set fdt_file to imx8qxp-mek.dtb
3. the hdmi display can show normal content
4. on u-boot change fdt_file to imx8qxp-mek-dpu-lcdif.dtb and reboot
5. the hdmi display no any output
6. check the output log and find ldb1 and ldb2 and display@disp1 all bound success. (pls see attached file for details)
I check imx8qxp-ss-dc.dtsi file, dpu_disp1_lcdif and ldb2_chx are all belong to dpu_disp1 port (mipi dsi1 ?).
My question:
1) Does ldb2 and lcdif (dpu_disp1_lcdif) can display on same time ?
2) If not, how to display dpu_disp1_lcdif (parallel lcdif) and ldb2 (DSI1 port) on the same time?
Thanks.
======================================================================
[ 3.458586] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 3.465235] [drm] No driver support for vblank timestamp query.
[ 3.471248] imx-drm display-subsystem: bound imx-drm-dpu-bliteng.2 (ops dpu_bliteng_ops)
[ 3.479543] imx-drm display-subsystem: bound imx-dpu-crtc.0 (ops dpu_crtc_ops)
[ 3.486945] imx-drm display-subsystem: bound imx-dpu-crtc.1 (ops dpu_crtc_ops)
[ 3.494572] imx-drm display-subsystem: bound bus@56220000:ldb@562210e0 (ops imx_ldb_ops)
[ 3.502718] imx-drm display-subsystem: bound 56228000.dsi_host (ops nwl_dsi_component_ops)
[ 3.511160] imx-drm display-subsystem: bound bus@56220000:ldb@562410e0 (ops imx_ldb_ops)
[ 3.519299] imx-drm display-subsystem: bound 56248000.dsi_host (ops nwl_dsi_component_ops)
[ 3.527705] imx-drm display-subsystem: bound display@disp1 (ops imx_lmuxd_ops)
[ 3.535567] [drm] Initialized imx-drm 1.0.0 20120507 for display-subsystem on minor 0
==========================================imx8qxp-ss-dc.dtsi===================
......
dpu_disp1: port@1 { reg = <1>; dpu_disp1_ldb2_ch0: endpoint@0 { remote-endpoint = <&ldb2_ch0>; }; dpu_disp1_ldb2_ch1: endpoint@1 { remote-endpoint = <&ldb2_ch1>; }; dpu_disp1_mipi_dsi: endpoint@2 { remote-endpoint = <&mipi1_dsi_in>; }; dpu_disp1_lcdif: endpoint@3 { }; };......
