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From: Andre Przywara <andre.przywara@arm.com>
To: Linus Walleij <linusw@kernel.org>, Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>, Chen-Yu Tsai <wens@csie.org>,
	Jernej Skrabec <jernej.skrabec@gmail.com>,
	Samuel Holland <samuel@sholland.org>
Cc: Michal Piekos <michal.piekos@mmpsystems.pl>,
	linux-gpio@vger.kernel.org, devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: [PATCH 3/5] dt-bindings: pinctrl: sun55i-a523: increase IRQ bank number
Date: Mon, 23 Mar 2026 12:01:49 +0100	[thread overview]
Message-ID: <20260323110151.2352832-4-andre.przywara@arm.com> (raw)
In-Reply-To: <20260323110151.2352832-1-andre.przywara@arm.com>

The Allwinner A523 SoC implements 10 GPIO banks in the first pinctrl
instance, but it skips the first bank (PortA), so their index goes from
1 to 10. The same is actually true for the IRQ banks: there are registers
for 11 banks, though the first bank is not implemented (RAZ/WI).
In contrast to previous SoCs, the count of the IRQ banks starts with this
first unimplemented bank, so we need to provide an interrupt for it.
And indeed the A523 user manual lists an interrupt number for PortA, so we
need to increase the maximum number of interrupts per pin controller to 11,
to be able to assign the correct interrupt number for each bank.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
---
 .../bindings/pinctrl/allwinner,sun55i-a523-pinctrl.yaml   | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/pinctrl/allwinner,sun55i-a523-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/allwinner,sun55i-a523-pinctrl.yaml
index 154e03da8ce9..f87b8274cc37 100644
--- a/Documentation/devicetree/bindings/pinctrl/allwinner,sun55i-a523-pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/allwinner,sun55i-a523-pinctrl.yaml
@@ -34,7 +34,7 @@ properties:
 
   interrupts:
     minItems: 2
-    maxItems: 10
+    maxItems: 11
     description:
       One interrupt per external interrupt bank supported on the
       controller, sorted by bank number ascending order.
@@ -61,7 +61,7 @@ properties:
       bank found in the controller
     $ref: /schemas/types.yaml#/definitions/uint32-array
     minItems: 2
-    maxItems: 10
+    maxItems: 11
 
 patternProperties:
   # It's pretty scary, but the basic idea is that:
@@ -130,8 +130,8 @@ allOf:
     then:
       properties:
         interrupts:
-          minItems: 10
-          maxItems: 10
+          minItems: 11
+          maxItems: 11
 
   - if:
       properties:
-- 
2.43.0



  parent reply	other threads:[~2026-03-23 11:02 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-23 11:01 [PATCH 0/5] pinctrl: sunxi: fix A523 GPIO IRQ blunder Andre Przywara
2026-03-23 11:01 ` [PATCH 1/5] pinctrl: sunxi: Rework IRQ remuxing to avoid fixed mux value Andre Przywara
2026-03-23 17:04   ` Chen-Yu Tsai
2026-03-23 11:01 ` [PATCH 2/5] pinctrl: sunxi: Remove unneeded IRQ remuxing for some SoCs Andre Przywara
2026-03-23 17:07   ` Chen-Yu Tsai
2026-03-23 11:01 ` Andre Przywara [this message]
2026-03-23 17:10   ` [PATCH 3/5] dt-bindings: pinctrl: sun55i-a523: increase IRQ bank number Chen-Yu Tsai
2026-04-07 16:14   ` Rob Herring (Arm)
2026-03-23 11:01 ` [PATCH 4/5] arm64: dts: allwinner: a523: Add missing GPIO interrupt Andre Przywara
2026-03-23 17:08   ` Chen-Yu Tsai
2026-03-23 11:01 ` [PATCH 5/5] pinctrl: sunxi: a523: add missing IRQ bank (plus old DT workaround) Andre Przywara
2026-03-23 17:41   ` Chen-Yu Tsai
2026-03-24 14:22     ` Andre Przywara

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