what`s the difference between fix_pix_fmt and bpp?

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what`s the difference between fix_pix_fmt and bpp?

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edwardfu
Contributor I

Hi team,

   I am not sure what the difference between fix_pix_fmt and bpp is. For example, in imx6, the LCD hardware interface is:

DISP0_DAT0:DISP0_DAT5 - B0-B5
DISP0_DAT6:DISP0_DAT11 - G0-G5
DISP0_DAT12:DISP0_DAT17 - R0-R5

so the fix_pix_fmt is RGB666, but what is the bpp is? bpp = 18 or bpp = 16?

As I understand, RGB666 needs at least 18bits to display, but in freescale ipuv3 driver file mxc_ipuv3_fb.c there is no bpp = 18.

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b45499
NXP TechSupport
NXP TechSupport

Which board and which version of BSP are you using?

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