Like SG2042, SG2044 uses a similar msi controller to provide MSI
interrupt for PCIe controllers.

Add support for the SG2044 msi controller

Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
---
 .../bindings/interrupt-controller/sophgo,sg2042-msi.yaml      | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/interrupt-controller/sophgo,sg2042-msi.yaml b/Documentation/devicetree/bindings/interrupt-controller/sophgo,sg2042-msi.yaml
index e1ffd55fa7bf..f6b8b1d92f79 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/sophgo,sg2042-msi.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/sophgo,sg2042-msi.yaml
@@ -18,7 +18,9 @@ allOf:
 
 properties:
   compatible:
-    const: sophgo,sg2042-msi
+    enum:
+      - sophgo,sg2042-msi
+      - sophgo,sg2044-msi
 
   reg:
     items:
-- 
2.48.1

On Mon, Mar 03, 2025 at 07:16:46PM +0800, Inochi Amaoto wrote:
> Like SG2042, SG2044 uses a similar msi controller to provide MSI
> interrupt for PCIe controllers.

In the future, could you mention the way in which they differ?
"similar" could mean 99% the same but incompatible, or 90% the same but
capable of using a fallback?
Acked-by: Conor Dooley <conor.dooley@microchip.com>

> 
> Add support for the SG2044 msi controller
> 
> Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
> ---
>  .../bindings/interrupt-controller/sophgo,sg2042-msi.yaml      | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/interrupt-controller/sophgo,sg2042-msi.yaml b/Documentation/devicetree/bindings/interrupt-controller/sophgo,sg2042-msi.yaml
> index e1ffd55fa7bf..f6b8b1d92f79 100644
> --- a/Documentation/devicetree/bindings/interrupt-controller/sophgo,sg2042-msi.yaml
> +++ b/Documentation/devicetree/bindings/interrupt-controller/sophgo,sg2042-msi.yaml
> @@ -18,7 +18,9 @@ allOf:
>  
>  properties:
>    compatible:
> -    const: sophgo,sg2042-msi
> +    enum:
> +      - sophgo,sg2042-msi
> +      - sophgo,sg2044-msi
>  
>    reg:
>      items:
> -- 
> 2.48.1
> 

On Mon, Mar 03, 2025 at 04:29:53PM +0000, Conor Dooley wrote:
> On Mon, Mar 03, 2025 at 07:16:46PM +0800, Inochi Amaoto wrote:
> > Like SG2042, SG2044 uses a similar msi controller to provide MSI
> > interrupt for PCIe controllers.
> 
> In the future, could you mention the way in which they differ?
> "similar" could mean 99% the same but incompatible, or 90% the same but
> capable of using a fallback?
> Acked-by: Conor Dooley <conor.dooley@microchip.com>
> 

It is OK for me. The difference between these two controller
are the number of MSI interrupts supports, and the way to
mask/map MSI message.

I will update the comment message for it.

Regards,
Inochi