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2021-06-21dt-bindings: Drop redundant minItems/maxItemsRob Herring
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 <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com> Cc: Kamal Dasu <kdasu.kdev@gmail.com> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Marc Zyngier <maz@kernel.org> Cc: Joerg Roedel <joro@8bytes.org> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Wolfgang Grandegger <wg@grandegger.com> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Vivien Didelot <vivien.didelot@gmail.com> Cc: Vladimir Oltean <olteanv@gmail.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Kishon Vijay Abraham I <kishon@ti.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de> Cc: Lee Jones <lee.jones@linaro.org> Cc: Ohad Ben-Cohen <ohad@wizery.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: Zhang Rui <rui.zhang@intel.com> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> 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: Marc Kleine-Budde <mkl@pengutronix.de> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> # for MMC Acked-by: Jassi Brar <jassisinghbrar@gmail.com> Acked-By: Vinod Koul <vkoul@kernel.org> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Arnaud Pouliquen <arnaud.pouliquen@st.com> Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Wolfram Sang <wsa@kernel.org> # for I2C Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Link: https://lore.kernel.org/r/20210615191543.1043414-1-robh@kernel.org
2021-04-08dt-bindings: timer: arm,arch_timer: Add interrupt-names supportHector Martin
Not all platforms provide the same set of timers/interrupts, and Linux only needs one (plus kvm/guest ones); some platforms are working around this by using dummy fake interrupts. Implementing interrupt-names allows the devicetree to specify an arbitrary set of available interrupts, so the timer code can pick the right one. This also adds the hyp-virt timer/interrupt, which was previously not expressed in the fixed 4-interrupt form. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Hector Martin <marcan@marcan.st>
2020-05-11dt-bindings: timer: Document allwinner,erratum-unknown1 propertySamuel Holland
This arch_timer property was added in commit c950ca8c35ee ("clocksource/drivers/arch_timer: Workaround for Allwinner A64 timer instability") but I omitted the device tree binding documentation. Now `make dtbs_check` prints the following warning for all A64 boards: timer: 'allwinner,erratum-unknown1' does not match any of the regexes: 'pinctrl-[0-9]+' Resolve this by documenting the erratum property. Signed-off-by: Samuel Holland <samuel@sholland.org> Signed-off-by: Rob Herring <robh@kernel.org>
2020-04-16dt-bindings: Clean-up schema indentation formattingRob Herring
Fix various inconsistencies in schema indentation. Most of these are list indentation which should be 2 spaces more than the start of the enclosing keyword. This doesn't matter functionally, but affects running scripts which do transforms on the schema files. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Maxime Ripard <mripard@kernel.org> Acked-by: Lee Jones <lee.jones@linaro.org> Acked-By: Vinod Koul <vkoul@kernel.org> Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Rob Herring <robh@kernel.org>
2020-03-31dt-bindings: Add missing 'additionalProperties: false'Rob Herring
Setting 'additionalProperties: false' is frequently omitted, but is important in order to check that there aren't extra undocumented properties in a binding. Ideally, we'd just add this automatically and make this the default, but there's some cases where it doesn't work. For example, if a common schema is referenced, then properties in the common schema aren't part of what's considered for 'additionalProperties'. Also, sometimes there are bus specific properties such as 'spi-max-frequency' that go into bus child nodes, but aren't defined in the child node's schema. So let's stick with the json-schema defined default and add 'additionalProperties: false' where needed. This will be a continual review comment and game of wack-a-mole. Signed-off-by: Rob Herring <robh@kernel.org> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Acked-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Reviewed-by: Benjamin Gaignard <benjamin.gaignard@st.com> Acked-by: Stephen Boyd <sboyd@kernel.org> # clock Acked-by: Lee Jones <lee.jones@linaro.org>
2018-12-13dt-bindings: timer: Convert ARM timer bindings to json-schemaRob Herring
Convert ARM timers to DT schema format using json-schema. Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Mark Rutland <mark.rutland@arm.com> Cc: devicetree@vger.kernel.org Signed-off-by: Rob Herring <robh@kernel.org>