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2023-12-12dt-bindings: watchdog: Document Google gs101 watchdog bindingsPeter Griffin
Add the "google,gs101-wdt" compatible to the dt-schema documentation. gs101 SoC has two CPU clusters and each cluster has its own dedicated watchdog timer (similar to exynos850 and exynosautov9 SoCs). These WDT instances are controlled using different bits in PMU registers. Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org> Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Link: https://lore.kernel.org/r/20231211162331.435900-2-peter.griffin@linaro.org Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
2023-12-07dt-bindings: watchdog: samsung: add specific compatible for Tesla FSDKrzysztof Kozlowski
Tesla FSD is a derivative of Samsung Exynos SoC, thus just like the others it reuses several devices from older designs. Historically we kept the old (block's) compatible only. This works fine and there is no bug here, however guidelines expressed in Documentation/devicetree/bindings/writing-bindings.rst state that: 1. Compatibles should be specific. 2. We should add new compatibles in case of bugs or features. Add Tesla FSD compatible specific to be used with an existing fallback. Acked-by: Rob Herring <robh@kernel.org> Acked-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20231205092229.19135-6-krzysztof.kozlowski@linaro.org Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
2022-10-02dt-bindings: watchdog: add exynosautov9 compatibleChanho Park
Adds "samsung,exynosautov9-wdt" to samsung-wdt compatible. This has two cpu watchdogs like exynos850. Signed-off-by: Chanho Park <chanho61.park@samsung.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20220520121750.71473-2-chanho61.park@samsung.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2021-12-28dt-bindings: watchdog: Document Exynos850 watchdog bindingsSam Protsenko
Exynos850 SoC has two CPU clusters: - cluster 0: contains CPUs #0, #1, #2, #3 - cluster 1: contains CPUs #4, #5, #6, #7 Each cluster has its own dedicated watchdog timer. Those WDT instances are controlled using different bits in PMU registers, new "samsung,index" property is added to tell the driver which bits to use for defined watchdog node. Also on Exynos850 the peripheral clock and the source clock are two different clocks. Provide a way to specify two clocks in watchdog device tree node. Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20211107202943.8859-3-semen.protsenko@linaro.org Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2021-12-28dt-bindings: watchdog: Require samsung,syscon-phandle for Exynos7Sam Protsenko
Exynos7 watchdog driver is clearly indicating that its dts node must define syscon phandle property. That was probably forgotten, so add it. Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org> Fixes: 2b9366b66967 ("watchdog: s3c2410_wdt: Add support for Watchdog device on Exynos7") Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20211107202943.8859-2-semen.protsenko@linaro.org Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2020-10-07dt-bindings: Add missing 'unevaluatedProperties'Rob Herring
This doesn't yet do anything in the tools, but make it explicit so we can check either 'unevaluatedProperties' or 'additionalProperties' is present in schemas. 'unevaluatedProperties' is appropriate when including another schema (via '$ref') and all possible properties and/or child nodes are not explicitly listed in the schema with the '$ref'. This is in preparation to add a meta-schema to check for missing 'unevaluatedProperties' or 'additionalProperties'. This has been a constant source of review issues. Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Wolfram Sang <wsa@kernel.org> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-By: Vinod Koul <vkoul@kernel.org> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Link: https://lore.kernel.org/r/20201005183830.486085-2-robh@kernel.org Signed-off-by: Rob Herring <robh@kernel.org>
2019-10-04dt-bindings: watchdog: Add missing clocks requirement in Samsung SoC watchdogKrzysztof Kozlowski
The Samsung SoC watchdog driver always required providing a clock (either through platform data or from DT). However when bindings were added in commit 9487a9cc7140 ("watchdog: s3c2410: Add support for device tree based probe"), they missed the requirement of clock. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Rob Herring <robh@kernel.org>
2019-10-04dt-bindings: watchdog: Convert Samsung SoC watchdog bindings to json-schemaKrzysztof Kozlowski
Convert Samsung S3C/S5P/Exynos watchdog bindings to DT schema format using json-schema. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Rob Herring <robh@kernel.org>