i.MX6 LDB framebuffer bpp

yan2 — Fri, 21 Apr 2017 10:16:04 GMT

Dear Community,

I am a little bit lost between device tree and framebuffer.

I've connected a lvds-display to a i.MX6DL. This works so far.

In the device tree file I configured ldb for the display:

&ldb {
   status = "okay";
   lvds-channel@0 {
       fsl,data-mapping = "spwg";
       fsl,data-width = <24>;

/* ... */

};

And the kernel (4.9.20) generates framebuffer automatically:

[ 1.475128] imx-drm display-subsystem: fb0: frame buffer device

But when I cat /sys/class/graphics/fb0/bits_per_pixel I get: 16

How can I increase the framebuffer bits_per_pixel to 32?

Regards,

YAN

i.MX Processorsのトピックi.MX6 LDB framebuffer bpp