Hi Igor,
Thank you for your response. I have read that post many times, but I'm afraid it does not actually solve my issue. According to Qiang_FSL,
In clock.c, the current clock setting is for 27MHz NTSC and PAL mode, for 1080i, you need the 74.25MHz clock, so you should change the clock source in clock.c.
From
clk_set_parent(&ipu1_di_clk[0], &pll3_pfd_540M); //for CVBS 27MHz clock
To
clk_set_parent(&ipu1_di_clk[0], &pll5_video_main_clk);
After applying the patch 0001-Support-BT656-and-BT1120-output-for-iMX6-ipuv3.patch from L3.10.17_1.0.0_GA_bt656_output_patch_2014-07-21.zip, I changed the ipu1 clock to use pll5_video_main_clk as suggested. I understand that this pll5_video_main_clk will cause conflicts between HDMI and the LCD ports, and that the solution is to set HDMI to use IPU2. In my device tree, my lcd and hdmi settings are as follows
lcd@0 {
compatible = "fsl,lcd";
ipu_id = <0>; // IPU 0
disp_id = <0>; // DISPLAY 0
default_ifmt = "RGB565";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_ipu1_1>;
status = "okay";
};
&hdmi_core {
ipu_id = <1>; // IPU 1
disp_id = <0>; // Display 0
status = "okay";
};
My boot argument is as follows:
video=mxcfb0:dev=lcd,BT1120-NTSC,if=BT1120,fbpix=UYVY16,bpp=16 video=mxcfb1:dev=hdmi,1024x768M@60,if=RGB24,bpp=32 video=mxcfb2:off video=mxcfb3:off fbmem=28M,28M consoleblank=0
When I set fb0 to BT1120-NTSC or BT1120-PAL, my HDMI display will go black and displays the message "Not Supported". When BT1120-1080I50 or BT1120-1080I60 is set, the HDMI display comes back, but nothing is displayed on the LCD monitor (see i.MX6Q BT.1120 SAV/EAV issue). Conversely, if I have NTSC or PAL video on the LCD display and update fb2 mode, HDMI comes back and LCD goes away.
Have I set IPU1 and IPU2 correctly, or is there another step that I am missing? Is it possible to determine which IPU the device is on from looking at the framebuffer or IPU registers?
Thank you,
Josh K.
