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Date:   Tue, 13 Jul 2021 13:34:53 -0600
From:   Rob Herring <robh@...nel.org>
To:     devicetree@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, Stephen Boyd <sboyd@...nel.org>,
        Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Sureshkumar Relli <naga.sureshkumar.relli@...inx.com>,
        Brian Norris <computersforpeace@...il.com>,
        Kamal Dasu <kdasu.kdev@...il.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Sebastian Siewior <bigeasy@...utronix.de>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        linux-clk@...r.kernel.org, iommu@...ts.linux-foundation.org,
        linux-mtd@...ts.infradead.org, linux-rtc@...r.kernel.org,
        linux-usb@...r.kernel.org
Subject: [PATCH] dt-bindings: More dropping redundant minItems/maxItems

Another round of removing redundant minItems/maxItems from new schema in
the recent merge window.

If a property has an 'items' list, then a 'minItems' or 'maxItems' with the
same size as the list is redundant and can be dropped. Note that is DT
schema specific behavior and not standard json-schema behavior. The tooling
will fixup the final schema adding any unspecified minItems/maxItems.

This condition is partially checked with the meta-schema already, but
only if both 'minItems' and 'maxItems' are equal to the 'items' length.
An improved meta-schema is pending.

Cc: Stephen Boyd <sboyd@...nel.org>
Cc: Joerg Roedel <joro@...tes.org>
Cc: Will Deacon <will@...nel.org>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
Cc: Miquel Raynal <miquel.raynal@...tlin.com>
Cc: Richard Weinberger <richard@....at>
Cc: Vignesh Raghavendra <vigneshr@...com>
Cc: Alessandro Zummo <a.zummo@...ertech.it>
Cc: Alexandre Belloni <alexandre.belloni@...tlin.com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Sureshkumar Relli <naga.sureshkumar.relli@...inx.com>
Cc: Brian Norris <computersforpeace@...il.com>
Cc: Kamal Dasu <kdasu.kdev@...il.com>
Cc: Linus Walleij <linus.walleij@...aro.org>
Cc: Sebastian Siewior <bigeasy@...utronix.de>
Cc: Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc: linux-clk@...r.kernel.org
Cc: iommu@...ts.linux-foundation.org
Cc: linux-mtd@...ts.infradead.org
Cc: linux-rtc@...r.kernel.org
Cc: linux-usb@...r.kernel.org
Signed-off-by: Rob Herring <robh@...nel.org>
---
 .../devicetree/bindings/clock/brcm,iproc-clocks.yaml      | 1 -
 .../devicetree/bindings/iommu/rockchip,iommu.yaml         | 2 --
 .../bindings/memory-controllers/arm,pl353-smc.yaml        | 1 -
 Documentation/devicetree/bindings/mtd/brcm,brcmnand.yaml  | 8 --------
 .../devicetree/bindings/rtc/faraday,ftrtc010.yaml         | 1 -
 Documentation/devicetree/bindings/usb/nxp,isp1760.yaml    | 2 --
 6 files changed, 15 deletions(-)

diff --git a/Documentation/devicetree/bindings/clock/brcm,iproc-clocks.yaml b/Documentation/devicetree/bindings/clock/brcm,iproc-clocks.yaml
index 8dc7b404ee12..1174c9aa9934 100644
--- a/Documentation/devicetree/bindings/clock/brcm,iproc-clocks.yaml
+++ b/Documentation/devicetree/bindings/clock/brcm,iproc-clocks.yaml
@@ -50,7 +50,6 @@ properties:
 
   reg:
     minItems: 1
-    maxItems: 3
     items:
       - description: base register
       - description: power register
diff --git a/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml b/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml
index d2e28a9e3545..ba9124f721f1 100644
--- a/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml
+++ b/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml
@@ -28,14 +28,12 @@ properties:
       - description: configuration registers for MMU instance 0
       - description: configuration registers for MMU instance 1
     minItems: 1
-    maxItems: 2
 
   interrupts:
     items:
       - description: interruption for MMU instance 0
       - description: interruption for MMU instance 1
     minItems: 1
-    maxItems: 2
 
   clocks:
     items:
diff --git a/Documentation/devicetree/bindings/memory-controllers/arm,pl353-smc.yaml b/Documentation/devicetree/bindings/memory-controllers/arm,pl353-smc.yaml
index 7a63c85ef8c5..01c9acf9275d 100644
--- a/Documentation/devicetree/bindings/memory-controllers/arm,pl353-smc.yaml
+++ b/Documentation/devicetree/bindings/memory-controllers/arm,pl353-smc.yaml
@@ -57,7 +57,6 @@ properties:
 
   ranges:
     minItems: 1
-    maxItems: 3
     description: |
       Memory bus areas for interacting with the devices. Reflects
       the memory layout with four integer values following:
diff --git a/Documentation/devicetree/bindings/mtd/brcm,brcmnand.yaml b/Documentation/devicetree/bindings/mtd/brcm,brcmnand.yaml
index e5f1a33332a5..dd5a64969e37 100644
--- a/Documentation/devicetree/bindings/mtd/brcm,brcmnand.yaml
+++ b/Documentation/devicetree/bindings/mtd/brcm,brcmnand.yaml
@@ -84,7 +84,6 @@ properties:
 
   interrupts:
     minItems: 1
-    maxItems: 3
     items:
       - description: NAND CTLRDY interrupt
       - description: FLASH_DMA_DONE if flash DMA is available
@@ -92,7 +91,6 @@ properties:
 
   interrupt-names:
     minItems: 1
-    maxItems: 3
     items:
       - const: nand_ctlrdy
       - const: flash_dma_done
@@ -148,8 +146,6 @@ allOf:
     then:
       properties:
         reg-names:
-          minItems: 2
-          maxItems: 2
           items:
             - const: nand
             - const: nand-int-base
@@ -161,8 +157,6 @@ allOf:
     then:
       properties:
         reg-names:
-          minItems: 3
-          maxItems: 3
           items:
             - const: nand
             - const: nand-int-base
@@ -175,8 +169,6 @@ allOf:
     then:
       properties:
         reg-names:
-          minItems: 3
-          maxItems: 3
           items:
             - const: nand
             - const: iproc-idm
diff --git a/Documentation/devicetree/bindings/rtc/faraday,ftrtc010.yaml b/Documentation/devicetree/bindings/rtc/faraday,ftrtc010.yaml
index 657c13b62b67..056d42daae06 100644
--- a/Documentation/devicetree/bindings/rtc/faraday,ftrtc010.yaml
+++ b/Documentation/devicetree/bindings/rtc/faraday,ftrtc010.yaml
@@ -30,7 +30,6 @@ properties:
     maxItems: 1
 
   clocks:
-    minItems: 2
     items:
       - description: PCLK clocks
       - description: EXTCLK clocks. Faraday calls it CLK1HZ and says the clock
diff --git a/Documentation/devicetree/bindings/usb/nxp,isp1760.yaml b/Documentation/devicetree/bindings/usb/nxp,isp1760.yaml
index a88f99adfe8e..f238848ad094 100644
--- a/Documentation/devicetree/bindings/usb/nxp,isp1760.yaml
+++ b/Documentation/devicetree/bindings/usb/nxp,isp1760.yaml
@@ -25,14 +25,12 @@ properties:
 
   interrupts:
     minItems: 1
-    maxItems: 2
     items:
       - description: Host controller interrupt
       - description: Device controller interrupt in isp1761
 
   interrupt-names:
     minItems: 1
-    maxItems: 2
     items:
       - const: host
       - const: peripheral
-- 
2.27.0

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