diff mbox series

[v4,2/7] dt-bindings: gpio: vf610: correct i.MX8ULP and i.MX93

Message ID 20230926-vf610-gpio-v4-2-b57b7f6e8368@nxp.com
State New
Headers show
Series None | expand

Commit Message

Peng Fan (OSS) Sept. 26, 2023, 3:33 a.m. UTC 
From: Peng Fan <peng.fan@nxp.com>

i.MX8ULP and i.MX93 actually has two interrupts for each gpio
controller, one for Trustzone non-secure world, one for secure world.

And they has one register based, not two as i.MX7ULP or VF610.

Although the Linux Kernel driver gpio-vf610.c could work with
fsl,imx7ulp-gpio compatible, it is based on some tricks did in
device tree with some offset added to base address.

So actually i.MX8ULP/i.MX93 is not compatible with i.MX7ULP.

Last, i.MX93 is directly derived from i.MX8ULP, so make i.MX93 GPIO
compatible with i.MX8ULP

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 .../devicetree/bindings/gpio/gpio-vf610.yaml       | 36 +++++++++++++++++++---
 1 file changed, 31 insertions(+), 5 deletions(-)

Comments

Rob Herring (Arm) Sept. 28, 2023, 4:29 p.m. UTC | #1 
On Tue, 26 Sep 2023 11:33:18 +0800, Peng Fan (OSS) wrote:
> From: Peng Fan <peng.fan@nxp.com>
> 
> i.MX8ULP and i.MX93 actually has two interrupts for each gpio
> controller, one for Trustzone non-secure world, one for secure world.
> 
> And they has one register based, not two as i.MX7ULP or VF610.
> 
> Although the Linux Kernel driver gpio-vf610.c could work with
> fsl,imx7ulp-gpio compatible, it is based on some tricks did in
> device tree with some offset added to base address.
> 
> So actually i.MX8ULP/i.MX93 is not compatible with i.MX7ULP.
> 
> Last, i.MX93 is directly derived from i.MX8ULP, so make i.MX93 GPIO
> compatible with i.MX8ULP
> 
> Signed-off-by: Peng Fan <peng.fan@nxp.com>
> ---
>  .../devicetree/bindings/gpio/gpio-vf610.yaml       | 36 +++++++++++++++++++---
>  1 file changed, 31 insertions(+), 5 deletions(-)
> 

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

Patch

diff --git a/Documentation/devicetree/bindings/gpio/gpio-vf610.yaml b/Documentation/devicetree/bindings/gpio/gpio-vf610.yaml
index 59427d97adf5..21199bf221ef 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-vf610.yaml
+++ b/Documentation/devicetree/bindings/gpio/gpio-vf610.yaml
@@ -20,6 +20,7 @@  description: |
 properties:
   compatible:
     oneOf:
+      - const: fsl,imx8ulp-gpio
       - const: fsl,vf610-gpio
       - items:
           - const: fsl,imx7ulp-gpio
@@ -27,16 +28,17 @@  properties:
       - items:
           - enum:
               - fsl,imx93-gpio
-              - fsl,imx8ulp-gpio
-          - const: fsl,imx7ulp-gpio
+          - const: fsl,imx8ulp-gpio
 
   reg:
-    description: The first reg tuple represents the PORT module, the second tuple
-      represents the GPIO module.
+    minItems: 1
     maxItems: 2
 
   interrupts:
-    maxItems: 1
+    items:
+      - description: GPIO Trustzone non-secure interrupt number
+      - description: GPIO Trustzone secure interrupt number
+    minItems: 1
 
   interrupt-controller: true
 
@@ -78,6 +80,30 @@  required:
   - "#gpio-cells"
   - gpio-controller
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - fsl,vf610-gpio
+              - fsl,imx7ulp-gpio
+    then:
+      properties:
+        interrupts:
+          maxItems: 1
+        reg:
+          items:
+            - description: PORT register base address
+            - description: GPIO register base address
+    else:
+      properties:
+        interrupts:
+          minItems: 2
+        reg:
+          items:
+            - description: GPIO register base address
+
 additionalProperties: false
 
 examples: