Hello, On Wed Dec 27, 2023 at 7:27 PM CET, Rob Herring wrote: > On Wed, Dec 27, 2023 at 10:24 AM Théo Lebrun <theo.lebrun@xxxxxxxxxxx> wrote: > > > > Add documentation to describe the "Other Logic Block" syscon. > > > > Signed-off-by: Théo Lebrun <theo.lebrun@xxxxxxxxxxx> > > --- > > .../bindings/soc/mobileye/mobileye,eyeq5-olb.yaml | 44 ++++++++++++++++++++++ > > MAINTAINERS | 1 + > > 2 files changed, 45 insertions(+) > > > > diff --git a/Documentation/devicetree/bindings/soc/mobileye/mobileye,eyeq5-olb.yaml b/Documentation/devicetree/bindings/soc/mobileye/mobileye,eyeq5-olb.yaml > > new file mode 100644 > > index 000000000000..b148a49b08f1 > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/soc/mobileye/mobileye,eyeq5-olb.yaml > > @@ -0,0 +1,44 @@ > > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) > > +%YAML 1.2 > > +--- > > +$id: http://devicetree.org/schemas/soc/mobileye/mobileye,eyeq5-olb.yaml# > > +$schema: http://devicetree.org/meta-schemas/core.yaml# > > + > > +title: Mobileye EyeQ5 SoC system controller > > + > > +maintainers: > > + - Grégory Clement <gregory.clement@xxxxxxxxxxx> > > + - Théo Lebrun <theo.lebrun@xxxxxxxxxxx> > > + - Vladimir Kondratiev <vladimir.kondratiev@xxxxxxxxxxxx> > > + > > +description: > > + OLB ("Other Logic Block") is a hardware block grouping smaller blocks. Clocks, > > + resets, pinctrl are being handled from here. > > I don't see resets or pinctrl in the binding. Please make it complete > whether you have the driver or not. > > As-is, you don't need clocks to be a child node. Will do. Would it make sense to have the three drivers be a single series? Else we could have the dt-bindings be part of the base platform support series[1]. [1]: https://lore.kernel.org/lkml/20231212163459.1923041-1-gregory.clement@xxxxxxxxxxx/ > > +properties: > > + compatible: > > + items: > > + - const: mobileye,eyeq5-olb > > + - const: syscon > > + - const: simple-mfd > > + > > + reg: > > + maxItems: 1 > > + > > + reg-io-width: > > + const: 4 > > Why do you need this? It is not a generic block and can only ever be 1 > value. This block is still a syscon in the end. I wanted to explicit that access width must be 4 bytes and nothing else. Does you question mean you think I should be removing it? > > +required: > > + - compatible > > + - reg > > + - reg-io-width > > + > > +additionalProperties: false > > + > > +examples: > > + - | > > + olb@e00000 { > > + compatible = "mobileye,eyeq5-olb", "syscon", "simple-mfd"; > > + reg = <0xe00000 0x400>; > > + reg-io-width = <4>; > > Make this example complete and drop the child node example. I hesitated inbetween the two options, I'll fix that on the next revision. Thanks! -- Théo Lebrun, Bootlin Embedded Linux and Kernel engineering https://bootlin.com
