diff mbox series

[v4,04/10] dt-bindings: misc: Add device specific bindings for RaspberryPi RP1

Message ID ebb21da5cb41391421b364815705be8b4c415f8a.1732444746.git.andrea.porta@suse.com
State New
Headers show
Series Add support for RaspberryPi RP1 PCI device using a DT overlay | expand

Commit Message

Andrea della Porta Nov. 24, 2024, 10:51 a.m. UTC 
The RP1 is a MFD that exposes its peripherals through PCI BARs. This
schema is intended as minimal support for the clock generator and
gpio controller peripherals which are accessible through BAR1.

Signed-off-by: Andrea della Porta <andrea.porta@suse.com>
---
 .../devicetree/bindings/misc/pci1de4,1.yaml   | 74 +++++++++++++++++++
 MAINTAINERS                                   |  1 +
 2 files changed, 75 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/misc/pci1de4,1.yaml

Comments

Rob Herring Nov. 25, 2024, 2:06 a.m. UTC | #1 
On Sun, 24 Nov 2024 11:51:41 +0100, Andrea della Porta wrote:
> The RP1 is a MFD that exposes its peripherals through PCI BARs. This
> schema is intended as minimal support for the clock generator and
> gpio controller peripherals which are accessible through BAR1.
> 
> Signed-off-by: Andrea della Porta <andrea.porta@suse.com>
> ---
>  .../devicetree/bindings/misc/pci1de4,1.yaml   | 74 +++++++++++++++++++
>  MAINTAINERS                                   |  1 +
>  2 files changed, 75 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/misc/pci1de4,1.yaml
> 

My bot found errors running 'make dt_binding_check' on your patch:

yamllint warnings/errors:

dtschema/dtc warnings/errors:
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/misc/pci1de4,1.example.dtb: clocks@c040018000: 'clock-names' does not match any of the regexes: 'pinctrl-[0-9]+'
	from schema $id: http://devicetree.org/schemas/clock/raspberrypi,rp1-clocks.yaml#

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/ebb21da5cb41391421b364815705be8b4c415f8a.1732444746.git.andrea.porta@suse.com

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.
Andrea della Porta Nov. 25, 2024, 9:15 a.m. UTC | #2 
Hi Rob,

On 20:06 Sun 24 Nov     , Rob Herring (Arm) wrote:
> 
> On Sun, 24 Nov 2024 11:51:41 +0100, Andrea della Porta wrote:
> > The RP1 is a MFD that exposes its peripherals through PCI BARs. This
> > schema is intended as minimal support for the clock generator and
> > gpio controller peripherals which are accessible through BAR1.
> > 
> > Signed-off-by: Andrea della Porta <andrea.porta@suse.com>
> > ---
> >  .../devicetree/bindings/misc/pci1de4,1.yaml   | 74 +++++++++++++++++++
> >  MAINTAINERS                                   |  1 +
> >  2 files changed, 75 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/misc/pci1de4,1.yaml
> > 
> 
> My bot found errors running 'make dt_binding_check' on your patch:
> 
> yamllint warnings/errors:
> 
> dtschema/dtc warnings/errors:
> /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/misc/pci1de4,1.example.dtb: clocks@c040018000: 'clock-names' does not match any of the regexes: 'pinctrl-[0-9]+'
> 	from schema $id: http://devicetree.org/schemas/clock/raspberrypi,rp1-clocks.yaml#
> 
> doc reference errors (make refcheckdocs):
> 
> See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/ebb21da5cb41391421b364815705be8b4c415f8a.1732444746.git.andrea.porta@suse.com
> 
> The base for the series is generally the latest rc1. A different dependency
> should be noted in *this* patch.
> 
> If you already ran 'make dt_binding_check' and didn't see the above
> error(s), then make sure 'yamllint' is installed and dt-schema is up to
> date:
> 
> pip3 install dtschema --upgrade
> 
> Please check and re-submit after running the above command yourself. Note
> that DT_SCHEMA_FILES can be set to your schema file to speed up checking
> your schema. However, it must be unset to test all examples with your schema.
> 

Sorry about that, but even if I see that this should be the case (I've dropped
the clock-name property from raspberrypi,rp1-clock.yaml), I can't reproduce it
with:

# make W=1 dt_binding_check DT_SCHEMA_FILES=pci1de4,1.yaml

and the output is:

  CHKDT   Documentation/devicetree/bindings
  LINT    Documentation/devicetree/bindings
  DTEX    Documentation/devicetree/bindings/misc/pci1de4,1.example.dts
  DTC [C] Documentation/devicetree/bindings/misc/pci1de4,1.example.dtb

dt-schema seems up to date. Is my command line correct?

Many thanks,
Andrea
Rob Herring Nov. 25, 2024, 1:21 p.m. UTC | #3 
On Mon, Nov 25, 2024 at 10:15:06AM +0100, Andrea della Porta wrote:
> Hi Rob,
> 
> On 20:06 Sun 24 Nov     , Rob Herring (Arm) wrote:
> > 
> > On Sun, 24 Nov 2024 11:51:41 +0100, Andrea della Porta wrote:
> > > The RP1 is a MFD that exposes its peripherals through PCI BARs. This
> > > schema is intended as minimal support for the clock generator and
> > > gpio controller peripherals which are accessible through BAR1.
> > > 
> > > Signed-off-by: Andrea della Porta <andrea.porta@suse.com>
> > > ---
> > >  .../devicetree/bindings/misc/pci1de4,1.yaml   | 74 +++++++++++++++++++
> > >  MAINTAINERS                                   |  1 +
> > >  2 files changed, 75 insertions(+)
> > >  create mode 100644 Documentation/devicetree/bindings/misc/pci1de4,1.yaml
> > > 
> > 
> > My bot found errors running 'make dt_binding_check' on your patch:
> > 
> > yamllint warnings/errors:
> > 
> > dtschema/dtc warnings/errors:
> > /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/misc/pci1de4,1.example.dtb: clocks@c040018000: 'clock-names' does not match any of the regexes: 'pinctrl-[0-9]+'
> > 	from schema $id: http://devicetree.org/schemas/clock/raspberrypi,rp1-clocks.yaml#

The error comes from this schema and...

> > 
> > doc reference errors (make refcheckdocs):
> > 
> > See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/ebb21da5cb41391421b364815705be8b4c415f8a.1732444746.git.andrea.porta@suse.com
> > 
> > The base for the series is generally the latest rc1. A different dependency
> > should be noted in *this* patch.
> > 
> > If you already ran 'make dt_binding_check' and didn't see the above
> > error(s), then make sure 'yamllint' is installed and dt-schema is up to
> > date:
> > 
> > pip3 install dtschema --upgrade
> > 
> > Please check and re-submit after running the above command yourself. Note
> > that DT_SCHEMA_FILES can be set to your schema file to speed up checking
> > your schema. However, it must be unset to test all examples with your schema.
> > 
> 
> Sorry about that, but even if I see that this should be the case (I've dropped
> the clock-name property from raspberrypi,rp1-clock.yaml), I can't reproduce it
> with:
> 
> # make W=1 dt_binding_check DT_SCHEMA_FILES=pci1de4,1.yaml

You've limited testing to schema files matching pci1de4,1.yaml.

> 
> and the output is:
> 
>   CHKDT   Documentation/devicetree/bindings
>   LINT    Documentation/devicetree/bindings
>   DTEX    Documentation/devicetree/bindings/misc/pci1de4,1.example.dts
>   DTC [C] Documentation/devicetree/bindings/misc/pci1de4,1.example.dtb
> 
> dt-schema seems up to date. Is my command line correct?
> 
> Many thanks,
> Andrea
>
Andrea della Porta Nov. 26, 2024, 3:08 p.m. UTC | #4 
Hi Rob,

On 07:21 Mon 25 Nov     , Rob Herring wrote:
> On Mon, Nov 25, 2024 at 10:15:06AM +0100, Andrea della Porta wrote:
> > Hi Rob,
> > 
> > On 20:06 Sun 24 Nov     , Rob Herring (Arm) wrote:
> > > 
> > > On Sun, 24 Nov 2024 11:51:41 +0100, Andrea della Porta wrote:
> > > > The RP1 is a MFD that exposes its peripherals through PCI BARs. This
> > > > schema is intended as minimal support for the clock generator and
> > > > gpio controller peripherals which are accessible through BAR1.
> > > > 
> > > > Signed-off-by: Andrea della Porta <andrea.porta@suse.com>
> > > > ---
> > > >  .../devicetree/bindings/misc/pci1de4,1.yaml   | 74 +++++++++++++++++++
> > > >  MAINTAINERS                                   |  1 +
> > > >  2 files changed, 75 insertions(+)
> > > >  create mode 100644 Documentation/devicetree/bindings/misc/pci1de4,1.yaml
> > > > 
> > > 
> > > My bot found errors running 'make dt_binding_check' on your patch:
> > > 
> > > yamllint warnings/errors:
> > > 
> > > dtschema/dtc warnings/errors:
> > > /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/misc/pci1de4,1.example.dtb: clocks@c040018000: 'clock-names' does not match any of the regexes: 'pinctrl-[0-9]+'
> > > 	from schema $id: http://devicetree.org/schemas/clock/raspberrypi,rp1-clocks.yaml#
> 
> The error comes from this schema and...
> 
> > > 
> > > doc reference errors (make refcheckdocs):
> > > 
> > > See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/ebb21da5cb41391421b364815705be8b4c415f8a.1732444746.git.andrea.porta@suse.com
> > > 
> > > The base for the series is generally the latest rc1. A different dependency
> > > should be noted in *this* patch.
> > > 
> > > If you already ran 'make dt_binding_check' and didn't see the above
> > > error(s), then make sure 'yamllint' is installed and dt-schema is up to
> > > date:
> > > 
> > > pip3 install dtschema --upgrade
> > > 
> > > Please check and re-submit after running the above command yourself. Note
> > > that DT_SCHEMA_FILES can be set to your schema file to speed up checking
> > > your schema. However, it must be unset to test all examples with your schema.
> > > 
> > 
> > Sorry about that, but even if I see that this should be the case (I've dropped
> > the clock-name property from raspberrypi,rp1-clock.yaml), I can't reproduce it
> > with:
> > 
> > # make W=1 dt_binding_check DT_SCHEMA_FILES=pci1de4,1.yaml
> 
> You've limited testing to schema files matching pci1de4,1.yaml.

Ah I see. I thought that DT_SCHEMA_FILES just restrict the check to that
particular file, instead it's also restricting all check of that file
to itself. So I guess there's no way to check one specific file against all
internally reference (e.g. from examples) schemas...

Thanks for pointing that out!

Regards,
Andrea

> 
> > 
> > and the output is:
> > 
> >   CHKDT   Documentation/devicetree/bindings
> >   LINT    Documentation/devicetree/bindings
> >   DTEX    Documentation/devicetree/bindings/misc/pci1de4,1.example.dts
> >   DTC [C] Documentation/devicetree/bindings/misc/pci1de4,1.example.dtb
> > 
> > dt-schema seems up to date. Is my command line correct?
> > 
> > Many thanks,
> > Andrea
> >
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/misc/pci1de4,1.yaml b/Documentation/devicetree/bindings/misc/pci1de4,1.yaml
new file mode 100644
index 000000000000..304d6b3d9e83
--- /dev/null
+++ b/Documentation/devicetree/bindings/misc/pci1de4,1.yaml
@@ -0,0 +1,74 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/misc/pci1de4,1.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: RaspberryPi RP1 MFD PCI device
+
+maintainers:
+  - Andrea della Porta <andrea.porta@suse.com>
+
+description:
+  The RaspberryPi RP1 is a PCI multi function device containing
+  peripherals ranging from Ethernet to USB controller, I2C, SPI
+  and others.
+  The peripherals are accessed by addressing the PCI BAR1 region.
+
+allOf:
+  - $ref: /schemas/pci/pci-ep-bus.yaml
+
+properties:
+  compatible:
+    additionalItems: true
+    maxItems: 3
+    items:
+      - const: pci1de4,1
+
+  '#interrupt-cells':
+    const: 2
+    description:
+      Specifies respectively the interrupt number and flags as defined
+      in include/dt-bindings/interrupt-controller/irq.h.
+
+  interrupt-controller: true
+
+unevaluatedProperties: false
+
+required:
+  - compatible
+  - '#interrupt-cells'
+  - interrupt-controller
+  - pci-ep-bus@1
+
+examples:
+  - |
+    pci {
+        #address-cells = <3>;
+        #size-cells = <2>;
+
+        rp1@0,0 {
+            compatible = "pci1de4,1";
+            ranges = <0x01 0x00 0x00000000  0x82010000 0x00 0x00  0x00 0x400000>;
+            #address-cells = <3>;
+            #size-cells = <2>;
+            interrupt-controller;
+            #interrupt-cells = <2>;
+
+            pci_ep_bus: pci-ep-bus@1 {
+                compatible = "simple-bus";
+                ranges = <0xc0 0x40000000  0x01 0x00 0x00000000  0x00 0x00400000>;
+                dma-ranges = <0x10 0x00000000  0x43000000 0x10 0x00000000  0x10 0x00000000>;
+                #address-cells = <2>;
+                #size-cells = <2>;
+
+                rp1_clocks: clocks@c040018000 {
+                    compatible = "raspberrypi,rp1-clocks";
+                    reg = <0xc0 0x40018000 0x0 0x10038>;
+                    #clock-cells = <1>;
+                    clocks = <&clk_rp1_xosc>;
+                    clock-names =  "xosc";
+                };
+            };
+        };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index ccf123b805c8..2aea5a6166bd 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -19384,6 +19384,7 @@  RASPBERRY PI RP1 PCI DRIVER
 M:	Andrea della Porta <andrea.porta@suse.com>
 S:	Maintained
 F:	Documentation/devicetree/bindings/clock/raspberrypi,rp1-clocks.yaml
+F:	Documentation/devicetree/bindings/misc/pci1de4,1.yaml
 F:	Documentation/devicetree/bindings/pci/pci-ep-bus.yaml
 F:	Documentation/devicetree/bindings/pinctrl/raspberrypi,rp1-gpio.yaml
 F:	include/dt-bindings/clock/rp1.h