i.MX ProcessorsのトピックRe: imx-drm framebuffer rotation

imx-drm framebuffer rotation

ottawa-imx6 — Sat, 03 Jan 2015 06:31:00 GMT

Hello, I am using the imx-drm with a parallel rgb lcd under 3.18. I have it working a little, but there are a few little issues that I am still working on.

1. Does anyone know how to do a permanent 180 degree vertical flip of the framebuffer contents while using imx-drm? I would like this in the kernel upon initialization.

2. Strangely, I had to enable the framebuffer console in my configuration to get the display to work at all... I don't need the fbcon, but there must be something that it does to enable my drm setup to work.

3. While using imx-drm, what do we set our bootargs in u-boot to? Previously, I had reference to mxcfb0, but now that we are using imx-drm, there is no reference to this mxcfb0. This could be the root cause of the above, but I cannot find any documentation on it.

Thanks

Brent

Re: imx-drm framebuffer rotation

fabio_estevam — Sat, 03 Jan 2015 17:03:53 GMT

Brent,

Please ask these questions at dri-devel@lists.freedesktop.org mailing list with the imx drm maintainer on Cc: Philipp Zabel <p.zabel@pengutronix.de>.

Re: imx-drm framebuffer rotation

ottawa-imx6 — Sat, 03 Jan 2015 19:07:56 GMT

Will do, thank you.

Brent

Re: imx-drm framebuffer rotation

ivannikolaenko — Thu, 21 Apr 2016 12:20:18 GMT

Hi, Brent.

Did you solve your problem?

We faced it too.