On Mon, Apr 03, 2017 at 09:07:43AM -0500, Rob Herring wrote: > On Tue, Mar 28, 2017 at 05:35:52PM -0700, Steve Longerbeam wrote: > > I assume if there's another binding doc in progress, it means > > someone is working on another Synopsys DW CSI-2 subdevice driver. > > Yes. see http://patchwork.ozlabs.org/patch/736177/ > > > Unfortunately I don't have the time to contribute and switch to > > this other subdevice, and do test/debug. > > >From a DT perspective, I'm not asking that you share the subdevice > driver, only the binding. Simply put, there's 1 h/w block here, so there > should only be 1 binding. The binding is an ABI, so you can't just merge > it and change it later. I think it would be nice to have some kind of standard base binding for CSI2 interfaces, but beyond the standard compatible/reg/interrupts and graph properties, I'm not sure what it would look like. As far as those properties go, the iMX6 version does better than the DW version, because we specify the full graph, whereas the DW version only specifies the downstream link. Once that's done, there's some properties (like those specifying the output configuration) which probably ought to be moved to the graph links instead, once they exist. So, if anything, I think it's the DW version needs to be augmented with fuller information, and some of the properties moved. Also, as I've mentioned in my other reply, while they may both appear to be called "Synopsys DW CSI-2" devices, they appear to be quite different from the hardware perspective. The rest -- RMK's Patch system: http://www.armlinux.org.uk/developer/patches/ FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up according to speedtest.net.
