[PATCH v1 1/2] dt-bindings: mbox: add pic64gx mailbox compatibility to mpfs mailbox

[PATCH v1 1/2] dt-bindings: mbox: add pic64gx mailbox compatibility to mpfs mailbox

[Conor Dooley]

From: Pierre-Henry Moussay <pierre-henry.moussay@microchip.com>

pic64gx mailbox is compatible with mpfs mailbox, even if the mailbox
consumer is not - the underlying communication mechanism is the same.

Signed-off-by: Pierre-Henry Moussay <pierre-henry.moussay@microchip.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
---
CC: Conor Dooley <conor.dooley@microchip.com>
CC: Daire McNamara <daire.mcnamara@microchip.com>
CC: Jassi Brar <jassisinghbrar@gmail.com>
CC: Rob Herring <robh@kernel.org>
CC: Krzysztof Kozlowski <krzk+dt@kernel.org>
CC: linux-riscv@lists.infradead.org
CC: linux-kernel@vger.kernel.org
CC: devicetree@vger.kernel.org

 .../devicetree/bindings/mailbox/microchip,mpfs-mailbox.yaml | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/mailbox/microchip,mpfs-mailbox.yaml b/Documentation/devicetree/bindings/mailbox/microchip,mpfs-mailbox.yaml
index 1332aab9a888..5f2ec74c1b29 100644
--- a/Documentation/devicetree/bindings/mailbox/microchip,mpfs-mailbox.yaml
+++ b/Documentation/devicetree/bindings/mailbox/microchip,mpfs-mailbox.yaml
@@ -11,7 +11,11 @@ maintainers:
 
 properties:
   compatible:
-    const: microchip,mpfs-mailbox
+    oneOf:
+      - items:
+          - const: microchip,pic64gx-mailbox
+          - const: microchip,mpfs-mailbox
+      - const: microchip,mpfs-mailbox
 
   reg:
     oneOf:
-- 
2.51.0

[PATCH v1 2/2] mailbox: mpfs: drop POLARFIRE from ARCH_MICROCHIP_POLARFIRE

[Conor Dooley]

From: Conor Dooley <conor.dooley@microchip.com>

The ARCH_MICROCHIP symbol has been defined for some time on RISCV, as a
replacement for ARCH_MICROCHIP_POLARFIRE since there are now other
Microchip RISC-V products. Drop the POLARFIRE from
ARCH_MICROCHIP_POLARFIRE in the POLARFIRE_SOC_MAILBOX Kconfig entry
since the newly added pic64gx also uses the mailbox and it is one of the
few users of ARCH_MICROCHIP_POLARFIRE left in the tree.

Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
---
CC: Conor Dooley <conor.dooley@microchip.com>
CC: Daire McNamara <daire.mcnamara@microchip.com>
CC: Jassi Brar <jassisinghbrar@gmail.com>
CC: linux-riscv@lists.infradead.org
CC: linux-kernel@vger.kernel.org

 drivers/mailbox/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mailbox/Kconfig b/drivers/mailbox/Kconfig
index 29f16f220384..35bd402cadc9 100644
--- a/drivers/mailbox/Kconfig
+++ b/drivers/mailbox/Kconfig
@@ -199,7 +199,7 @@ config POLARFIRE_SOC_MAILBOX
 	tristate "PolarFire SoC (MPFS) Mailbox"
 	depends on HAS_IOMEM
 	depends on MFD_SYSCON
-	depends on ARCH_MICROCHIP_POLARFIRE || COMPILE_TEST
+	depends on ARCH_MICROCHIP || COMPILE_TEST
 	help
 	  This driver adds support for the PolarFire SoC (MPFS) mailbox controller.
 
-- 
2.51.0

Re: [PATCH v1 1/2] dt-bindings: mbox: add pic64gx mailbox compatibility to mpfs mailbox

[Rob Herring (Arm)]

On Mon, 17 Nov 2025 15:46:54 +0000, Conor Dooley wrote:
> From: Pierre-Henry Moussay <pierre-henry.moussay@microchip.com>
> 
> pic64gx mailbox is compatible with mpfs mailbox, even if the mailbox
> consumer is not - the underlying communication mechanism is the same.
> 
> Signed-off-by: Pierre-Henry Moussay <pierre-henry.moussay@microchip.com>
> Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
> ---
> CC: Conor Dooley <conor.dooley@microchip.com>
> CC: Daire McNamara <daire.mcnamara@microchip.com>
> CC: Jassi Brar <jassisinghbrar@gmail.com>
> CC: Rob Herring <robh@kernel.org>
> CC: Krzysztof Kozlowski <krzk+dt@kernel.org>
> CC: linux-riscv@lists.infradead.org
> CC: linux-kernel@vger.kernel.org
> CC: devicetree@vger.kernel.org
> 
>  .../devicetree/bindings/mailbox/microchip,mpfs-mailbox.yaml | 6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)
> 

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>