Adds a new DTS prop for i3c devices as support for the CCC SETAASA
requires prior knowledge of the target if it supports it according
to i3c spec v1.1.1 section 5.19.3.23.
This will be used as an optimization for bus initialization.
Signed-off-by: Ryan McClelland <ryanmcclelland@meta.com>
This implements basic driver to utilize the I3C IP block
on NPCX.
1. I3C mode: Main controller mode only.
2. Transfer: Support SDR only.
3. IBI: Support Hot-Join, IBI(MDB).
Controller request is not supported.
4. Support 3 I3C modules:
I3C1(3.3V), I3C2(1.8V, espi mode), (I3C3 1.8V or 3.3V)
Signed-off-by: Alvis Sun <yfsun@nuvoton.com>
The default is that the high time for open-drain clk is one
PPBAUD, which is typically very short. Some device require
a longer high time during the open-drain address phase so
add a property to allow device tree to override the default.
Signed-off-by: Mike J. Chen <mjchen@google.com>
DTS property attributes are (by default) not required.
Explicitly specifying `required: false` is redundant.
Perhaps a warning to that effect would be useful.
Signed-off-by: Chris Friedt <cfriedt@meta.com>
This adds a base binding for I3C controllers.
Note that this follows the Linux kernel 5.17 bindings under
Documentation/devicetree/bindings/i3c/i3c.yaml.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
