On Sun, Feb 09, 2025 at 02:31:35PM -0600, Crystal Wood wrote: > On Fri, Feb 07, 2025 at 10:30:26PM +0100, J. Neuschäfer via B4 Relay wrote: > > + simple-periph@2,0 { > > + compatible = "fsl,elbc-gpcm-uio"; > > + reg = <0x2 0x0 0x10000>; > > + elbc-gpcm-br = <0xfd810800>; > > + elbc-gpcm-or = <0xffff09f7>; > > + }; > > I know this isn't new, but... since we're using this as an example, > where is the documentation for this fsl,elbc-gpcm-uio and > elbc-gpcm-br/or? What exactly is a simple-periph? > > There are no in-tree device trees that use this either. The bcsr > node was actually a much more normal example, despite that particular > platform having been removed. There are other bcsr nodes that still > exist that could be used instead. OK, I noticed patch 10 after I sent this :-P Seems I didn't like it too much when it was new either: https://lkml.org/lkml/2014/12/9/530 And it's still a bad example for how GPCM devices on this bus should normally be represented. -Crystal