[v3,1/3] dt-bindings: PCI: qcom: ep: Add interconnects path

  Some platforms may not boot if a device driver doesn't initialize
the interconnect path. Mostly it is handled by the bootloader but
we have starting to see cases where bootloader simply ignores them.

Add the "pcie-mem" interconnect path as a required property to the
bindings.

Signed-off-by: Krishna chaitanya chundru <quic_krichai@quicinc.com>
---
 Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml | 11 +++++++++++
 1 file changed, 11 insertions(+)
  

On 9.06.2023 13:47, Krishna chaitanya chundru wrote:
> Some platforms may not boot if a device driver doesn't initialize
> the interconnect path. Mostly it is handled by the bootloader but
> we have starting to see cases where bootloader simply ignores them.
> 
> Add the "pcie-mem" interconnect path as a required property to the
> bindings.
> 
> Signed-off-by: Krishna chaitanya chundru <quic_krichai@quicinc.com>
> ---
Hi, only patches 1 and 2 made it to both me and linux-arm-msm.

Consider using b4 (https://b4.docs.kernel.org/en/latest/index.html) to
avoid this.

>  Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
> index b3c22eb..656e362 100644
> --- a/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
> +++ b/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
> @@ -70,6 +70,13 @@ properties:
>      description: GPIO used as WAKE# output signal
>      maxItems: 1
>  
> +  interconnects:
> +    maxItems: 1
> +
> +  interconnect-names:
> +    items:
> +      - const: pcie-mem
> +
>    resets:
>      maxItems: 1
>  
> @@ -97,6 +104,8 @@ required:
>    - interrupts
>    - interrupt-names
>    - reset-gpios
> +  - interconnects
> +  - interconnect-names
>    - resets
>    - reset-names
>    - power-domains
> @@ -194,6 +203,8 @@ examples:
>          interrupt-names = "global", "doorbell";
>          reset-gpios = <&tlmm 57 GPIO_ACTIVE_LOW>;
>          wake-gpios = <&tlmm 53 GPIO_ACTIVE_LOW>;
> +	interconnects = <&system_noc MASTER_PCIE_0 &mc_virt SLAVE_EBI1>;
> +	interconnect-names = "pci-mem";
The indentation is off and my brain compiler says that it will not compile
without including some headers.

Konrad
>          resets = <&gcc GCC_PCIE_BCR>;
>          reset-names = "core";
>          power-domains = <&gcc PCIE_GDSC>;
  

On Fri, 09 Jun 2023 17:17:26 +0530, Krishna chaitanya chundru wrote:
> Some platforms may not boot if a device driver doesn't initialize
> the interconnect path. Mostly it is handled by the bootloader but
> we have starting to see cases where bootloader simply ignores them.
> 
> Add the "pcie-mem" interconnect path as a required property to the
> bindings.
> 
> Signed-off-by: Krishna chaitanya chundru <quic_krichai@quicinc.com>
> ---
>  Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 

My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
on your patch (DT_CHECKER_FLAGS is new in v5.13):

yamllint warnings/errors:
./Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml:206:1: [error] syntax error: found character '\t' that cannot start any token (syntax)

dtschema/dtc warnings/errors:
make[1]: *** Deleting file 'Documentation/devicetree/bindings/pci/qcom,pcie-ep.example.dts'
Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml:206:1: found a tab character where an indentation space is expected
make[1]: *** [Documentation/devicetree/bindings/Makefile:26: Documentation/devicetree/bindings/pci/qcom,pcie-ep.example.dts] Error 1
make[1]: *** Waiting for unfinished jobs....
./Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml:206:1: found a tab character where an indentation space is expected
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml: ignoring, error parsing file
make: *** [Makefile:1512: dt_binding_check] Error 2

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/1686311249-6857-2-git-send-email-quic_krichai@quicinc.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.
  

On 6/9/2023 6:43 PM, Rob Herring wrote:
> On Fri, 09 Jun 2023 17:17:26 +0530, Krishna chaitanya chundru wrote:
>> Some platforms may not boot if a device driver doesn't initialize
>> the interconnect path. Mostly it is handled by the bootloader but
>> we have starting to see cases where bootloader simply ignores them.
>>
>> Add the "pcie-mem" interconnect path as a required property to the
>> bindings.
>>
>> Signed-off-by: Krishna chaitanya chundru <quic_krichai@quicinc.com>
>> ---
>>   Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml | 11 +++++++++++
>>   1 file changed, 11 insertions(+)
>>
> My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
> on your patch (DT_CHECKER_FLAGS is new in v5.13):
>
> yamllint warnings/errors:
> ./Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml:206:1: [error] syntax error: found character '\t' that cannot start any token (syntax)
>
> dtschema/dtc warnings/errors:
> make[1]: *** Deleting file 'Documentation/devicetree/bindings/pci/qcom,pcie-ep.example.dts'
> Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml:206:1: found a tab character where an indentation space is expected
> make[1]: *** [Documentation/devicetree/bindings/Makefile:26: Documentation/devicetree/bindings/pci/qcom,pcie-ep.example.dts] Error 1
> make[1]: *** Waiting for unfinished jobs....
> ./Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml:206:1: found a tab character where an indentation space is expected
> /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml: ignoring, error parsing file
> make: *** [Makefile:1512: dt_binding_check] Error 2
>
> doc reference errors (make refcheckdocs):
>
> See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/1686311249-6857-2-git-send-email-quic_krichai@quicinc.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 for sending the patch without checking the patch. fixed the errors 
and sent new patch
  

On 6/9/2023 6:43 PM, Rob Herring wrote:
> On Fri, 09 Jun 2023 17:17:26 +0530, Krishna chaitanya chundru wrote:
>> Some platforms may not boot if a device driver doesn't initialize
>> the interconnect path. Mostly it is handled by the bootloader but
>> we have starting to see cases where bootloader simply ignores them.
>>
>> Add the "pcie-mem" interconnect path as a required property to the
>> bindings.
>>
>> Signed-off-by: Krishna chaitanya chundru <quic_krichai@quicinc.com>
>> ---
>>   Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml | 11 +++++++++++
>>   1 file changed, 11 insertions(+)
>>
> My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
> on your patch (DT_CHECKER_FLAGS is new in v5.13):
>
> yamllint warnings/errors:
> ./Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml:206:1: [error] syntax error: found character '\t' that cannot start any token (syntax)
>
> dtschema/dtc warnings/errors:
> make[1]: *** Deleting file 'Documentation/devicetree/bindings/pci/qcom,pcie-ep.example.dts'
> Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml:206:1: found a tab character where an indentation space is expected
> make[1]: *** [Documentation/devicetree/bindings/Makefile:26: Documentation/devicetree/bindings/pci/qcom,pcie-ep.example.dts] Error 1
> make[1]: *** Waiting for unfinished jobs....
> ./Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml:206:1: found a tab character where an indentation space is expected
> /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml: ignoring, error parsing file
> make: *** [Makefile:1512: dt_binding_check] Error 2
>
> doc reference errors (make refcheckdocs):
>
> See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/1686311249-6857-2-git-send-email-quic_krichai@quicinc.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 for sending patch without checking for errors, I fixed the errors 
in the new patch.