Re: [U-Boot] [PATCH 2/2] imx: mx6ul_14x14_evk: convert to DM_VIDEO

2 Aug 2019

      HI,
...
Subject: Re: [PATCH 2/2] imx: mx6ul_14x14_evk: convert to DM_VIDEO
Hi Peng,
On Thu, Aug 1, 2019 at 3:02 AM Peng Fan peng.fan@nxp.com wrote:
...

  display0: display@0 {

          bits-per-pixel = <16>;

          bus-width = <24>;

          display-timings {

                  native-mode = <&timing0>;

                  timing0: timing0 {

                          clock-frequency = <9200000>;

                          hactive = <480>;

                          vactive = <272>;

                          hfront-porch = <8>;

                          hback-porch = <4>;

                          hsync-len = <41>;

                          vback-porch = <2>;

                          vfront-porch = <4>;

                          vsync-len = <10>;

                          hsync-active = <0>;

                          vsync-active = <0>;

                          de-active = <1>;

                          pixelclk-active = <0>;

So here we have the LCD timings in the device tree, which differs from the the
devicetree in mainline.
This is based on the old mxsfb fbdev driver, which has been removed in 5.3-rc.
In mainline we pass the innolux,at043tn24 LCD compatible.
Shouldn't U-Boot be able to handle the same dt-bindings as in the kernel?
I added this node in x-u-boot.dtsi, not in common dts. If drop this display-timings,
we need add a similar structure inside code just as kernel did.
And need to restructure mxsfb driver.
For simple, we could leave this in u-boot.dtsi.
Anatolij, what's your suggestion?
Thanks,
Peng.