[PATCH v1 2/5] dt-bindings: gpio: mpfs: add coreGPIO support

From: Conor Dooley <conor@kernel.org>
To: linux-riscv@lists.infradead.org
Cc: conor@kernel.org, "Conor Dooley" <conor.dooley@microchip.com>,
	"Daire McNamara" <daire.mcnamara@microchip.com>,
	"Jamie Gibbons" <jamie.gibbons@microchip.com>,
	"Valentina Fernandez" <valentina.fernandezalanis@microchip.com>,
	"Linus Walleij" <linus.walleij@linaro.org>,
	"Bartosz Golaszewski" <brgl@bgdev.pl>,
	"Rob Herring" <robh@kernel.org>,
	"Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>,
	"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
	"Krzysztof Wilczyński" <kw@linux.com>,
	"Bjorn Helgaas" <bhelgaas@google.com>,
	linux-gpio@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org
Subject: [PATCH v1 2/5] dt-bindings: gpio: mpfs: add coreGPIO support
Date: Wed, 27 Mar 2024 12:24:37 +0000	[thread overview]
Message-ID: <20240327-procurer-rascal-33bca7d5d14b@spud> (raw)
In-Reply-To: <20240327-parkway-dodgy-f0fe1fa20892@spud>

From: Jamie Gibbons <jamie.gibbons@microchip.com>

The GPIO controllers on PolarFire SoC were based on the "soft" IP
CoreGPIO, but the inp/outp registers are at different offsets. Add
compatible to allow for support of both sets of offsets. The soft
core will not always have interrupts wired up, so only enforce them for
the "hard" core on PolarFire SoC.

Signed-off-by: Jamie Gibbons <jamie.gibbons@microchip.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
---
 .../bindings/gpio/microchip,mpfs-gpio.yaml       | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml b/Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml
index d481e78958a7..6884dacb2865 100644
--- a/Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml
+++ b/Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml
@@ -14,6 +14,7 @@ properties:
     items:
       - enum:
           - microchip,mpfs-gpio
+          - microchip,coregpio-rtl-v3
 
   reg:
     maxItems: 1
@@ -62,12 +63,21 @@ patternProperties:
       - gpio-hog
       - gpios
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: microchip,mpfs-gpio
+    then:
+      required:
+        - interrupts
+        - "#interrupt-cells"
+        - interrupt-controller
+
 required:
   - compatible
   - reg
-  - interrupts
-  - "#interrupt-cells"
-  - interrupt-controller
   - "#gpio-cells"
   - gpio-controller
   - clocks
-- 
2.43.0

