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SubjectRe: [PATCH 0/3] drm: tinydrm driver for adafruit PiTFT 3.5" touchscreen
Eric Anholt <> writes:

> I was going to start working on making the vc4 driver work with
> tinydrm panels, but it turned out tinydrm didn't have the panel I had
> previously bought. So, last night I ported the fbtft staging
> driver over to DRM.
> It seems to work (with DT at
> --
> fbdev works great including rotated, and so does modetest. However,
> when X11 comes up at 16bpp, I get:
> If I have tinydrm set a preferred bpp of 24, X looks great. Noralf,
> any ideas?

Also, with these patches and the format modifier patch I just sent, mesa
with vc4 is now working with this driver on this branch:

Now I wonder how we can improve performance of the SPI updates.
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