# Re: \[PATCH\] dt-bindings: Drop redundant minItems/maxItems

- From: Wolfram Sang \<wsa@kernel.org\>
- Date: 2021-06-16 18:42:03 
- List: linux-devicetree
- Page: https://ratatoskr.run/linux-devicetree/2021/06/1417055
- Thread: https://ratatoskr.run/linux-devicetree/2021/06/1415442/t.md

```text
On Tue, Jun 15, 2021 at 01:15:43PM -0600, Rob Herring wrote:
> 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: Jens Axboe <axboe@kernel.dk>
> Cc: Stephen Boyd <sboyd@kernel.org>
> Cc: Herbert Xu <herbert@gondor.apana.org.au>
> Cc: "David S. Miller" <davem@davemloft.net>
> Cc: David Airlie <redacted>
> Cc: Daniel Vetter <redacted>
> Cc: Vinod Koul <vkoul@kernel.org>
> Cc: Bartosz Golaszewski <redacted>
> Cc: Kamal Dasu <redacted>
> Cc: Jonathan Cameron <jic23@kernel.org>
> Cc: Lars-Peter Clausen <lars@metafoo.de>
> Cc: Thomas Gleixner <redacted>
> Cc: Marc Zyngier <maz@kernel.org>
> Cc: Joerg Roedel <joro@8bytes.org>
> Cc: Jassi Brar <jassisinghbrar@gmail.com>
> Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
> Cc: Krzysztof Kozlowski <redacted>
> Cc: Ulf Hansson <redacted>
> Cc: Jakub Kicinski <kuba@kernel.org>
> Cc: Wolfgang Grandegger <redacted>
> Cc: Marc Kleine-Budde <mkl@pengutronix.de>
> Cc: Andrew Lunn <andrew@lunn.ch>
> Cc: Vivien Didelot <redacted>
> Cc: Vladimir Oltean <olteanv@gmail.com>
> Cc: Bjorn Helgaas <bhelgaas@google.com>
> Cc: Kishon Vijay Abraham I <redacted>
> Cc: Linus Walleij <redacted>
> Cc: "Uwe Kleine-König" <redacted>
> Cc: Lee Jones <redacted>
> Cc: Ohad Ben-Cohen <redacted>
> Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
> Cc: Philipp Zabel <p.zabel@pengutronix.de>
> Cc: Paul Walmsley <redacted>
> Cc: Palmer Dabbelt <palmer@dabbelt.com>
> Cc: Albert Ou <aou@eecs.berkeley.edu>
> Cc: Alessandro Zummo <redacted>
> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Cc: Mark Brown <broonie@kernel.org>
> Cc: Zhang Rui <rui.zhang@intel.com>
> Cc: Daniel Lezcano <redacted>
> Cc: Wim Van Sebroeck <wim@linux-watchdog.org>
> Cc: Guenter Roeck <linux@roeck-us.net>
> Signed-off-by: Rob Herring <robh@kernel.org>

Acked-by: Wolfram Sang <wsa@kernel.org> # for I2C

```

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