diff mbox series

[V5,2/5] dt-bindings: mailbox: imx-mu: add i.MX93 S4 MU support

Message ID 20220228024013.2866386-3-peng.fan@oss.nxp.com (mailing list archive)
State New, archived
Headers show
Series mailbox: imx: support i.MX93 | expand

Commit Message

Peng Fan (OSS) Feb. 28, 2022, 2:40 a.m. UTC
From: Peng Fan <peng.fan@nxp.com>

Similar to i.MX8ULP S4 MU, i.MX93 MU is dedicated for communication
between Sentinel and Cortex-A cores from hardware design, it could not be
reused for other purpose.

However i.MX93 S4 MU use separate tx/rx interrupt, so update
interrupts and add interrupt-names property.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
---


Hi Rob,
 For dual entries, I tested below with dt_binding_check and dtbs_check
 "
 +		s4muap: s4muap@47520000 {
 +			compatible = "fsl,imx93-mu-s4";
 +			reg = <0x47520000 0x10000>;
 +			interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>;
 +			interrupt-names = "tx", "rx";
 +			#mbox-cells = <2>;
 +			status = "okay";
 +		};
 +
 +		s4muap1: s4muap@48520000 {
 +			compatible = "fsl,imx8ulp-mu-s4";
 +			reg = <0x48520000 0x10000>;
 +			interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
 +			interrupt-names = "tx", "rx";
 +			#mbox-cells = <2>;
 +			status = "okay";
 +		};
 "

 .../devicetree/bindings/mailbox/fsl,mu.yaml   | 28 ++++++++++++++++++-
 1 file changed, 27 insertions(+), 1 deletion(-)

Comments

Rob Herring (Arm) March 1, 2022, 3:42 p.m. UTC | #1
On Mon, Feb 28, 2022 at 10:40:10AM +0800, Peng Fan (OSS) wrote:
> From: Peng Fan <peng.fan@nxp.com>
> 
> Similar to i.MX8ULP S4 MU, i.MX93 MU is dedicated for communication
> between Sentinel and Cortex-A cores from hardware design, it could not be
> reused for other purpose.
> 
> However i.MX93 S4 MU use separate tx/rx interrupt, so update
> interrupts and add interrupt-names property.
> 
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
> Signed-off-by: Peng Fan <peng.fan@nxp.com>
> ---
> 
> 
> Hi Rob,
>  For dual entries, I tested below with dt_binding_check and dtbs_check
>  "
>  +		s4muap: s4muap@47520000 {
>  +			compatible = "fsl,imx93-mu-s4";
>  +			reg = <0x47520000 0x10000>;
>  +			interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>;
>  +			interrupt-names = "tx", "rx";
>  +			#mbox-cells = <2>;
>  +			status = "okay";
>  +		};
>  +
>  +		s4muap1: s4muap@48520000 {
>  +			compatible = "fsl,imx8ulp-mu-s4";
>  +			reg = <0x48520000 0x10000>;
>  +			interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
>  +			interrupt-names = "tx", "rx";

Well, that's wrong, but we don't check the length of 'foo-names' against 
'foo'.

>  +			#mbox-cells = <2>;
>  +			status = "okay";
>  +		};
>  "
> 
>  .../devicetree/bindings/mailbox/fsl,mu.yaml   | 28 ++++++++++++++++++-
>  1 file changed, 27 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/mailbox/fsl,mu.yaml b/Documentation/devicetree/bindings/mailbox/fsl,mu.yaml
> index 6d056d5e16bf..82ce0280add9 100644
> --- a/Documentation/devicetree/bindings/mailbox/fsl,mu.yaml
> +++ b/Documentation/devicetree/bindings/mailbox/fsl,mu.yaml
> @@ -29,6 +29,7 @@ properties:
>        - const: fsl,imx8ulp-mu
>        - const: fsl,imx8-mu-scu
>        - const: fsl,imx8-mu-seco
> +      - const: fsl,imx93-mu-s4
>        - const: fsl,imx8ulp-mu-s4
>        - items:
>            - const: fsl,imx93-mu
> @@ -55,7 +56,14 @@ properties:
>      maxItems: 1
>  
>    interrupts:
> -    maxItems: 1
> +    minItems: 1
> +    maxItems: 2
> +
> +  interrupt-names:
> +    minItems: 1
> +    items:
> +      - const: tx
> +      - const: rx
>  
>    "#mbox-cells":
>      description: |
> @@ -90,6 +98,24 @@ required:
>    - interrupts
>    - "#mbox-cells"
>  
> +allOf:
> +  - if:
> +      properties:
> +        compatible:
> +          enum:
> +            - fsl,imx93-mu-s4
> +    then:
> +      properties:
> +        interrupt-names:
> +          minItems: 2
> +        interrupts:
> +          minItems: 2
> +
> +    else:
> +      properties:
> +        interrupts:
> +          maxItems: 1

You could add:

         not:
           required:
             - interrupt-names

Otherwise,

Reviewed-by: Rob Herring <robh@kernel.org>
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/mailbox/fsl,mu.yaml b/Documentation/devicetree/bindings/mailbox/fsl,mu.yaml
index 6d056d5e16bf..82ce0280add9 100644
--- a/Documentation/devicetree/bindings/mailbox/fsl,mu.yaml
+++ b/Documentation/devicetree/bindings/mailbox/fsl,mu.yaml
@@ -29,6 +29,7 @@  properties:
       - const: fsl,imx8ulp-mu
       - const: fsl,imx8-mu-scu
       - const: fsl,imx8-mu-seco
+      - const: fsl,imx93-mu-s4
       - const: fsl,imx8ulp-mu-s4
       - items:
           - const: fsl,imx93-mu
@@ -55,7 +56,14 @@  properties:
     maxItems: 1
 
   interrupts:
-    maxItems: 1
+    minItems: 1
+    maxItems: 2
+
+  interrupt-names:
+    minItems: 1
+    items:
+      - const: tx
+      - const: rx
 
   "#mbox-cells":
     description: |
@@ -90,6 +98,24 @@  required:
   - interrupts
   - "#mbox-cells"
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          enum:
+            - fsl,imx93-mu-s4
+    then:
+      properties:
+        interrupt-names:
+          minItems: 2
+        interrupts:
+          minItems: 2
+
+    else:
+      properties:
+        interrupts:
+          maxItems: 1
+
 additionalProperties: false
 
 examples: