diff mbox series

[v6,1/5] dt-bindings: remoteproc: Add PRU consumer bindings

Message ID 20221012114429.2341215-2-danishanwar@ti.com (mailing list archive)
State Superseded
Headers show
Series Introduce PRU remoteproc consumer API | expand

Commit Message

MD Danish Anwar Oct. 12, 2022, 11:44 a.m. UTC
From: Suman Anna <s-anna@ti.com>

Add a YAML binding document for PRU consumers. The binding includes
all the common properties that can be used by different PRU consumer
or application nodes and supported by the PRU remoteproc driver.
These are used to configure the PRU hardware for specific user
applications.

The application nodes themselves should define their own bindings.

Co-developed-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Co-developed-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
Signed-off-by: Puranjay Mohan <p-mohan@ti.com>
Signed-off-by: MD Danish Anwar <danishanwar@ti.com>
---
 .../bindings/remoteproc/ti,pru-consumer.yaml  | 132 ++++++++++++++++++
 1 file changed, 132 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/remoteproc/ti,pru-consumer.yaml

Comments

Rob Herring (Arm) Oct. 12, 2022, 1:19 p.m. UTC | #1
On Wed, 12 Oct 2022 17:14:25 +0530, MD Danish Anwar wrote:
> From: Suman Anna <s-anna@ti.com>
> 
> Add a YAML binding document for PRU consumers. The binding includes
> all the common properties that can be used by different PRU consumer
> or application nodes and supported by the PRU remoteproc driver.
> These are used to configure the PRU hardware for specific user
> applications.
> 
> The application nodes themselves should define their own bindings.
> 
> Co-developed-by: Tero Kristo <t-kristo@ti.com>
> Signed-off-by: Tero Kristo <t-kristo@ti.com>
> Signed-off-by: Suman Anna <s-anna@ti.com>
> Co-developed-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
> Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
> Signed-off-by: Puranjay Mohan <p-mohan@ti.com>
> Signed-off-by: MD Danish Anwar <danishanwar@ti.com>
> ---
>  .../bindings/remoteproc/ti,pru-consumer.yaml  | 132 ++++++++++++++++++
>  1 file changed, 132 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/remoteproc/ti,pru-consumer.yaml
> 

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:

dtschema/dtc warnings/errors:
Documentation/devicetree/bindings/remoteproc/ti,pru-consumer.example.dtb:0:0: /example-0/icssg2-eth: failed to match any schema with compatible: ['ti,am654-icssg-prueth']

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/patch/

This check can fail if there are any dependencies. The base for a patch
series is generally the most recent rc1.

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.
Krzysztof Kozlowski Oct. 12, 2022, 3:24 p.m. UTC | #2
On 12/10/2022 07:44, MD Danish Anwar wrote:
> From: Suman Anna <s-anna@ti.com>
> 
> Add a YAML binding document for PRU consumers. The binding includes

Add a DT schema binding for ...

Second thing: where is a user of this common binding? How do you apply
this schema to anything?

> all the common properties that can be used by different PRU consumer
> or application nodes and supported by the PRU remoteproc driver.
> These are used to configure the PRU hardware for specific user
> applications.
> 
> The application nodes themselves should define their own bindings.
> 
> Co-developed-by: Tero Kristo <t-kristo@ti.com>
> Signed-off-by: Tero Kristo <t-kristo@ti.com>
> Signed-off-by: Suman Anna <s-anna@ti.com>
> Co-developed-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
> Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
> Signed-off-by: Puranjay Mohan <p-mohan@ti.com>
> Signed-off-by: MD Danish Anwar <danishanwar@ti.com>
> ---
>  .../bindings/remoteproc/ti,pru-consumer.yaml  | 132 ++++++++++++++++++
>  1 file changed, 132 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/remoteproc/ti,pru-consumer.yaml
> 
> diff --git a/Documentation/devicetree/bindings/remoteproc/ti,pru-consumer.yaml b/Documentation/devicetree/bindings/remoteproc/ti,pru-consumer.yaml
> new file mode 100644
> index 000000000000..16be98b7d600
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/remoteproc/ti,pru-consumer.yaml
> @@ -0,0 +1,132 @@
> +# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/remoteproc/ti,pru-consumer.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Common TI PRU Consumer Binding
> +
> +maintainers:
> +  - Suman Anna <s-anna@ti.com>
> +
> +description: |
> +  A PRU application/consumer/user node typically uses one or more PRU device
> +  nodes to implement a PRU application/functionality. Each application/client
> +  node would need a reference to at least a PRU node, and optionally define
> +  some properties needed for hardware/firmware configuration. The below
> +  properties are a list of common properties supported by the PRU remoteproc
> +  infrastructure.
> +
> +  The application nodes shall define their own bindings like regular platform
> +  devices, so below are in addition to each node's bindings.
> +
> +properties:
> +  ti,prus:
> +    $ref: /schemas/types.yaml#/definitions/phandle-array
> +    description: phandles to the PRU, RTU or Tx_PRU nodes used
> +    minItems: 1
> +    maxItems: 6
> +    items:
> +      maxItems: 1
> +
> +  firmware-name:
> +    $ref: /schemas/types.yaml#/definitions/string-array
> +    minItems: 1
> +    maxItems: 6
> +    description: |
> +      firmwares for the PRU cores, the default firmware for the core from
> +      the PRU node will be used if not provided. The firmware names should
> +      correspond to the PRU cores listed in the 'ti,prus' property
> +
> +  ti,pruss-gp-mux-sel:
> +    $ref: /schemas/types.yaml#/definitions/uint32-array
> +    minItems: 1
> +    maxItems: 6
> +    items:
> +      enum: [0, 1, 2, 3, 4]
> +    description: |
> +      array of values for the GP_MUX_SEL under PRUSS_GPCFG register for a PRU.
> +      This selects the internal muxing scheme for the PRU instance. Values
> +      should correspond to the PRU cores listed in the 'ti,prus' property. The
> +      GP_MUX_SEL setting is a per-slice setting (one setting for PRU0, RTU0,
> +      and Tx_PRU0 on K3 SoCs). Use the same value for all cores within the
> +      same slice in the associative array. If the array size is smaller than
> +      the size of 'ti,prus' property, the default out-of-reset value (0) for the
> +      PRU core is used.
> +
> +required:
> +  - ti,prus
> +
> +additionalProperties: true
> +
> +examples:
> +  - |
> +    /* PRU application node full example */
> +    icssg2_eth: icssg2-eth {
> +      compatible = "ti,am654-icssg-prueth";
> +      pinctrl-names = "default";
> +      pinctrl-0 = <&icssg2_rgmii_pins_default>;
> +      sram = <&msmc_ram>;
> +      ti,prus = <&pru2_0>, <&rtu2_0>, <&tx_pru2_0>,
> +        <&pru2_1>, <&rtu2_1>, <&tx_pru2_1>;

Fix alignment. In other places as well.


> +      firmware-name = "ti-pruss/am65x-sr2-pru0-prueth-fw.elf",
> +          "ti-pruss/am65x-sr2-rtu0-prueth-fw.elf",
> +          "ti-pruss/am65x-sr2-txpru0-prueth-fw.elf",
> +          "ti-pruss/am65x-sr2-pru1-prueth-fw.elf",
> +          "ti-pruss/am65x-sr2-rtu1-prueth-fw.elf",
> +          "ti-pruss/am65x-sr2-txpru1-prueth-fw.elf";
> +

Best regards,
Krzysztof
Anwar, Md Danish Oct. 13, 2022, 8:46 a.m. UTC | #3
Hi Rob,

On 12/10/22 18:49, Rob Herring wrote:
> On Wed, 12 Oct 2022 17:14:25 +0530, MD Danish Anwar wrote:
>> From: Suman Anna <s-anna@ti.com>
>>
>> Add a YAML binding document for PRU consumers. The binding includes
>> all the common properties that can be used by different PRU consumer
>> or application nodes and supported by the PRU remoteproc driver.
>> These are used to configure the PRU hardware for specific user
>> applications.
>>
>> The application nodes themselves should define their own bindings.
>>
>> Co-developed-by: Tero Kristo <t-kristo@ti.com>
>> Signed-off-by: Tero Kristo <t-kristo@ti.com>
>> Signed-off-by: Suman Anna <s-anna@ti.com>
>> Co-developed-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
>> Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
>> Signed-off-by: Puranjay Mohan <p-mohan@ti.com>
>> Signed-off-by: MD Danish Anwar <danishanwar@ti.com>
>> ---
>>  .../bindings/remoteproc/ti,pru-consumer.yaml  | 132 ++++++++++++++++++
>>  1 file changed, 132 insertions(+)
>>  create mode 100644 Documentation/devicetree/bindings/remoteproc/ti,pru-consumer.yaml
>>
> 
> 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:
> 
> dtschema/dtc warnings/errors:
> Documentation/devicetree/bindings/remoteproc/ti,pru-consumer.example.dtb:0:0: /example-0/icssg2-eth: failed to match any schema with compatible: ['ti,am654-icssg-prueth']
> 
> doc reference errors (make refcheckdocs):
> 
> See https://patchwork.ozlabs.org/patch/
> 
> This check can fail if there are any dependencies. The base for a patch
> series is generally the most recent rc1.
> 

This error is coming as this dt-schema has 'ti,am654-icssg-prueth' as
compatible in the example section, which is introduced in [1] patch series.
Including the full example section in this dt schema binding is causing this error.

In v5 [2] of this series, only the 'ti,prus', 'firmware-name' and
'ti,pruss-gp-mux-sel' properties were included in the example section. Mathieu
had asked to include full example in the dt binding document.

So I added full example section. But in full example I included compatible
property as well which is not introduced in this series thus creating dt check
binding error.

I will remove the example section from here and add it to dt-schema binding of
icssg-prueth.

[1] https://lore.kernel.org/all/20220531095108.21757-2-p-mohan@ti.com/
[2] https://lore.kernel.org/all/20220607045650.4999-2-p-mohan@ti.com/

> 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.
>
Anwar, Md Danish Oct. 13, 2022, 10:37 a.m. UTC | #4
Hi Krzysztof,


On 12/10/22 20:54, Krzysztof Kozlowski wrote:
> On 12/10/2022 07:44, MD Danish Anwar wrote:
>> From: Suman Anna <s-anna@ti.com>
>>
>> Add a YAML binding document for PRU consumers. The binding includes
> 
> Add a DT schema binding for ...
> 

Sure I'll change it to that.

> Second thing: where is a user of this common binding? How do you apply
> this schema to anything?
> 

This dt binding will be included in 'ti,icssg-prueth.yaml' which is introduced
in the series [1].

in 'ti,icssg-prueth.yaml' file --
allOf:
  - $ref: /schemas/remoteproc/ti,pru-consumer.yaml#

The consumer can apply the dt schema 'ti,icssg-prueth.yaml' and this schema
will be applied with that as this schema is included in 'ti,icssg-prueth.yaml'.

>> all the common properties that can be used by different PRU consumer
>> or application nodes and supported by the PRU remoteproc driver.
>> These are used to configure the PRU hardware for specific user
>> applications.
>>
>> The application nodes themselves should define their own bindings.
>>
>> Co-developed-by: Tero Kristo <t-kristo@ti.com>
>> Signed-off-by: Tero Kristo <t-kristo@ti.com>
>> Signed-off-by: Suman Anna <s-anna@ti.com>
>> Co-developed-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
>> Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
>> Signed-off-by: Puranjay Mohan <p-mohan@ti.com>
>> Signed-off-by: MD Danish Anwar <danishanwar@ti.com>
>> ---
>>  .../bindings/remoteproc/ti,pru-consumer.yaml  | 132 ++++++++++++++++++
>>  1 file changed, 132 insertions(+)
>>  create mode 100644 Documentation/devicetree/bindings/remoteproc/ti,pru-consumer.yaml
>>
>> diff --git a/Documentation/devicetree/bindings/remoteproc/ti,pru-consumer.yaml b/Documentation/devicetree/bindings/remoteproc/ti,pru-consumer.yaml
>> new file mode 100644
>> index 000000000000..16be98b7d600
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/remoteproc/ti,pru-consumer.yaml
>> @@ -0,0 +1,132 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/remoteproc/ti,pru-consumer.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Common TI PRU Consumer Binding
>> +
>> +maintainers:
>> +  - Suman Anna <s-anna@ti.com>
>> +
>> +description: |
>> +  A PRU application/consumer/user node typically uses one or more PRU device
>> +  nodes to implement a PRU application/functionality. Each application/client
>> +  node would need a reference to at least a PRU node, and optionally define
>> +  some properties needed for hardware/firmware configuration. The below
>> +  properties are a list of common properties supported by the PRU remoteproc
>> +  infrastructure.
>> +
>> +  The application nodes shall define their own bindings like regular platform
>> +  devices, so below are in addition to each node's bindings.
>> +
>> +properties:
>> +  ti,prus:
>> +    $ref: /schemas/types.yaml#/definitions/phandle-array
>> +    description: phandles to the PRU, RTU or Tx_PRU nodes used
>> +    minItems: 1
>> +    maxItems: 6
>> +    items:
>> +      maxItems: 1
>> +
>> +  firmware-name:
>> +    $ref: /schemas/types.yaml#/definitions/string-array
>> +    minItems: 1
>> +    maxItems: 6
>> +    description: |
>> +      firmwares for the PRU cores, the default firmware for the core from
>> +      the PRU node will be used if not provided. The firmware names should
>> +      correspond to the PRU cores listed in the 'ti,prus' property
>> +
>> +  ti,pruss-gp-mux-sel:
>> +    $ref: /schemas/types.yaml#/definitions/uint32-array
>> +    minItems: 1
>> +    maxItems: 6
>> +    items:
>> +      enum: [0, 1, 2, 3, 4]
>> +    description: |
>> +      array of values for the GP_MUX_SEL under PRUSS_GPCFG register for a PRU.
>> +      This selects the internal muxing scheme for the PRU instance. Values
>> +      should correspond to the PRU cores listed in the 'ti,prus' property. The
>> +      GP_MUX_SEL setting is a per-slice setting (one setting for PRU0, RTU0,
>> +      and Tx_PRU0 on K3 SoCs). Use the same value for all cores within the
>> +      same slice in the associative array. If the array size is smaller than
>> +      the size of 'ti,prus' property, the default out-of-reset value (0) for the
>> +      PRU core is used.
>> +
>> +required:
>> +  - ti,prus
>> +
>> +additionalProperties: true
>> +
>> +examples:
>> +  - |
>> +    /* PRU application node full example */
>> +    icssg2_eth: icssg2-eth {
>> +      compatible = "ti,am654-icssg-prueth";
>> +      pinctrl-names = "default";
>> +      pinctrl-0 = <&icssg2_rgmii_pins_default>;
>> +      sram = <&msmc_ram>;
>> +      ti,prus = <&pru2_0>, <&rtu2_0>, <&tx_pru2_0>,
>> +        <&pru2_1>, <&rtu2_1>, <&tx_pru2_1>;
> 
> Fix alignment. In other places as well.
> 

Sure, I'll work on this.

>> +      firmware-name = "ti-pruss/am65x-sr2-pru0-prueth-fw.elf",
>> +          "ti-pruss/am65x-sr2-rtu0-prueth-fw.elf",
>> +          "ti-pruss/am65x-sr2-txpru0-prueth-fw.elf",
>> +          "ti-pruss/am65x-sr2-pru1-prueth-fw.elf",
>> +          "ti-pruss/am65x-sr2-rtu1-prueth-fw.elf",
>> +          "ti-pruss/am65x-sr2-txpru1-prueth-fw.elf";
>> +
> 
> Best regards,
> Krzysztof
> 

[1] https://lore.kernel.org/all/20220531095108.21757-2-p-mohan@ti.com/

Thanks and Regards,
Danish.
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/remoteproc/ti,pru-consumer.yaml b/Documentation/devicetree/bindings/remoteproc/ti,pru-consumer.yaml
new file mode 100644
index 000000000000..16be98b7d600
--- /dev/null
+++ b/Documentation/devicetree/bindings/remoteproc/ti,pru-consumer.yaml
@@ -0,0 +1,132 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/remoteproc/ti,pru-consumer.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Common TI PRU Consumer Binding
+
+maintainers:
+  - Suman Anna <s-anna@ti.com>
+
+description: |
+  A PRU application/consumer/user node typically uses one or more PRU device
+  nodes to implement a PRU application/functionality. Each application/client
+  node would need a reference to at least a PRU node, and optionally define
+  some properties needed for hardware/firmware configuration. The below
+  properties are a list of common properties supported by the PRU remoteproc
+  infrastructure.
+
+  The application nodes shall define their own bindings like regular platform
+  devices, so below are in addition to each node's bindings.
+
+properties:
+  ti,prus:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    description: phandles to the PRU, RTU or Tx_PRU nodes used
+    minItems: 1
+    maxItems: 6
+    items:
+      maxItems: 1
+
+  firmware-name:
+    $ref: /schemas/types.yaml#/definitions/string-array
+    minItems: 1
+    maxItems: 6
+    description: |
+      firmwares for the PRU cores, the default firmware for the core from
+      the PRU node will be used if not provided. The firmware names should
+      correspond to the PRU cores listed in the 'ti,prus' property
+
+  ti,pruss-gp-mux-sel:
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    minItems: 1
+    maxItems: 6
+    items:
+      enum: [0, 1, 2, 3, 4]
+    description: |
+      array of values for the GP_MUX_SEL under PRUSS_GPCFG register for a PRU.
+      This selects the internal muxing scheme for the PRU instance. Values
+      should correspond to the PRU cores listed in the 'ti,prus' property. The
+      GP_MUX_SEL setting is a per-slice setting (one setting for PRU0, RTU0,
+      and Tx_PRU0 on K3 SoCs). Use the same value for all cores within the
+      same slice in the associative array. If the array size is smaller than
+      the size of 'ti,prus' property, the default out-of-reset value (0) for the
+      PRU core is used.
+
+required:
+  - ti,prus
+
+additionalProperties: true
+
+examples:
+  - |
+    /* PRU application node full example */
+    icssg2_eth: icssg2-eth {
+      compatible = "ti,am654-icssg-prueth";
+      pinctrl-names = "default";
+      pinctrl-0 = <&icssg2_rgmii_pins_default>;
+      sram = <&msmc_ram>;
+      ti,prus = <&pru2_0>, <&rtu2_0>, <&tx_pru2_0>,
+        <&pru2_1>, <&rtu2_1>, <&tx_pru2_1>;
+      firmware-name = "ti-pruss/am65x-sr2-pru0-prueth-fw.elf",
+          "ti-pruss/am65x-sr2-rtu0-prueth-fw.elf",
+          "ti-pruss/am65x-sr2-txpru0-prueth-fw.elf",
+          "ti-pruss/am65x-sr2-pru1-prueth-fw.elf",
+          "ti-pruss/am65x-sr2-rtu1-prueth-fw.elf",
+          "ti-pruss/am65x-sr2-txpru1-prueth-fw.elf";
+
+      ti,pruss-gp-mux-sel = <2>,      /* MII mode */
+                <2>,
+                <2>,
+                <2>,  /* MII mode */
+                <2>,
+                <2>;
+
+      ti,mii-g-rt = <&icssg2_mii_g_rt>;
+      ti,mii-rt = <&icssg2_mii_rt>;
+      iep = <&icssg2_iep0>,  <&icssg2_iep1>;
+
+      interrupt-parent = <&icssg2_intc>;
+      interrupts = <24 0 2>, <25 1 3>;
+      interrupt-names = "tx_ts0", "tx_ts1";
+
+      dmas = <&main_udmap 0xc300>, /* egress slice 0 */
+             <&main_udmap 0xc301>, /* egress slice 0 */
+             <&main_udmap 0xc302>, /* egress slice 0 */
+             <&main_udmap 0xc303>, /* egress slice 0 */
+             <&main_udmap 0xc304>, /* egress slice 1 */
+             <&main_udmap 0xc305>, /* egress slice 1 */
+             <&main_udmap 0xc306>, /* egress slice 1 */
+             <&main_udmap 0xc307>, /* egress slice 1 */
+
+             <&main_udmap 0x4300>, /* ingress slice 0 */
+             <&main_udmap 0x4301>, /* ingress slice 1 */
+             <&main_udmap 0x4302>, /* mgmnt rsp slice 0 */
+             <&main_udmap 0x4303>; /* mgmnt rsp slice 1 */
+      dma-names = "tx0-0", "tx0-1", "tx0-2", "tx0-3",
+            "tx1-0", "tx1-1", "tx1-2", "tx1-3",
+            "rx0", "rx1",
+            "rxmgm0", "rxmgm1";
+
+      ethernet-ports {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        port@0 {
+          reg = <0>;
+          phy-handle = <&icssg2_phy0>;
+          phy-mode = "rgmii-rxid";
+          ti,syscon-rgmii-delay = <&scm_conf 0x4120>;
+          /* Filled in by bootloader */
+          local-mac-address = [00 00 00 00 00 00];
+        };
+        port@1 {
+          reg = <1>;
+          phy-handle = <&icssg2_phy1>;
+          phy-mode = "rgmii-rxid";
+          ti,syscon-rgmii-delay = <&scm_conf 0x4124>;
+          /* Filled in by bootloader */
+          local-mac-address = [00 00 00 00 00 00];
+        };
+      };
+    };