Hi Am 01.02.22 um 18:00 schrieb Geert Uytterhoeven:
Hi Thomas, On Tue, Feb 1, 2022 at 5:16 PM Thomas Zimmermann <tzimmermann@xxxxxxx> wrote:Am 31.01.22 um 11:18 schrieb Javier Martinez Canillas:Another thing that's missing is a DRM_MODE_CONNECTOR_I2C, because I used for now a DRM_MODE_CONNECTOR_Unknown.That might have implications on userspace. Maybe ask around. (Not that we actually run userspace on the device).Looking at the list of connector types (and wondering if we're gonna need more when converting existing fbdev drivers to drm drivers), there seem to be two different families of connector types, for 1. transports between CRTC and display (e.g. VGA, DVID, HDMI), 2. transports between CPU and CRTC (e.g. SPI, possibly USB, and the proposed I2C)?
I think I had a similar discussion when we merged the gud driver. gud is a driver for a RasPi-based usb display adapter. My point was that USB is just an internal transport bus, like PCI. But that wasn't convincing. So now we have USB and other busses as connector types.
My preference would be to use a panel type as Daniel suggested; and maybe 'Unknown' for a few special cases.
Best regards Thomas
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
-- Thomas Zimmermann Graphics Driver Developer SUSE Software Solutions Germany GmbH Maxfeldstr. 5, 90409 Nürnberg, Germany (HRB 36809, AG Nürnberg) Geschäftsführer: Ivo Totev
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