On Wed, Aug 27, 2025 at 02:49:54PM +0000, Shenwei Wang wrote: > > > > -----Original Message----- > > From: Rob Herring <[email protected]> > > Sent: Tuesday, August 26, 2025 3:09 PM > > To: Shenwei Wang <[email protected]> > > Cc: Bjorn Andersson <[email protected]>; Mathieu Poirier > > <[email protected]>; Krzysztof Kozlowski <[email protected]>; > > Conor > > Dooley <[email protected]>; Shawn Guo <[email protected]>; Sascha > > Hauer <[email protected]>; Linus Walleij <[email protected]>; > > Bartosz Golaszewski <[email protected]>; Pengutronix Kernel Team > > <[email protected]>; Fabio Estevam <[email protected]>; Peng Fan > > <[email protected]>; [email protected]; > > [email protected]; [email protected]; linux-arm- > > [email protected]; [email protected]; dl-linux-imx > > <linux- > > [email protected]> > > Subject: [EXT] Re: [PATCH 1/4] dt-bindings: remoteproc: imx_rproc: Add > > "rpmsg" > > subnode support > > > Each subnode within "rpmsg" represents an individual RPMSG channel. > > > The name of each subnode corresponds to the channel name as defined by > > > the remote processor. > > > > > > All remote devices associated with a given channel are defined as > > > child nodes under the corresponding channel node. > > > > How is each channel addressed? Are they really grouped by type first (i2c, > > gpio, > > etc.) then an address within the group? Or is there some flat channel > > numbering? > > If the latter, then the addresses in the DT shoulc match the channel number. > > > > Yes, the channels are grouped by type and identified by unique channel names > assigned > by the remote processor. > > The RPMSG bus dynamically assigns addresses to each channel at runtime. > Because these > addresses are not static, they cannot be pre-defined in the dts.
But you did define addresses. How do you know which channel 'gpio@1' corresponds to if RPMSG dynamically assigns addresses? Rob
