[v2,05/16] dt-bindings: mfd: Add bindings for sl28cpld

Message ID	20200402203656.27047-6-michael@walle.cc
State	New
Headers	show Return-Path: <SRS0=uhzQ=5S=vger.kernel.org=linux-gpio-owner@kernel.org> From: Michael Walle <michael@walle.cc> To: linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-hwmon@vger.kernel.org, linux-pwm@vger.kernel.org, linux-watchdog@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Linus Walleij <linus.walleij@linaro.org>, Bartosz Golaszewski <bgolaszewski@baylibre.com>, Rob Herring <robh+dt@kernel.org>, Jean Delvare <jdelvare@suse.com>, Guenter Roeck <linux@roeck-us.net>, Lee Jones <lee.jones@linaro.org>, Thierry Reding <thierry.reding@gmail.com>, =?utf-8?q?Uwe_Kleine-K?= =?utf-8?b?w7ZuaWc=?= <u.kleine-koenig@pengutronix.de>, Wim Van Sebroeck <wim@linux-watchdog.org>, Shawn Guo <shawnguo@kernel.org>, Li Yang <leoyang.li@nxp.com>, Thomas Gleixner <tglx@linutronix.de>, Jason Cooper <jason@lakedaemon.net>, Marc Zyngier <maz@kernel.org>, Mark Brown <broonie@kernel.org>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Michael Walle <michael@walle.cc> Subject: [PATCH v2 05/16] dt-bindings: mfd: Add bindings for sl28cpld Date: Thu, 2 Apr 2020 22:36:45 +0200 Message-Id: <20200402203656.27047-6-michael@walle.cc> In-Reply-To: <20200402203656.27047-1-michael@walle.cc> References: <20200402203656.27047-1-michael@walle.cc> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-gpio-owner@vger.kernel.org Precedence: bulk
Series	None \| expand [v2,02/16] mfd: mfd-core: Don't overwrite the dma_mask of the child device [v2,03/16] mfd: mfd-core: match device tree node against reg property [v2,05/16] dt-bindings: mfd: Add bindings for sl28cpld [v2,08/16] watchdog: add support for sl28cpld watchdog [v2,09/16] pwm: add support for sl28cpld PWM controller [v2,12/16] hwmon: add support for the sl28cpld hardware monitoring controller [v2,14/16] arm64: dts: freescale: sl28: map GPIOs to input events [v2,15/16] arm64: dts: freescale: sl28: enable LED support

diff --git a/Documentation/devicetree/bindings/gpio/kontron,sl28cpld-gpio.yaml b/Documentation/devicetree/bindings/gpio/kontron,sl28cpld-gpio.yaml new file mode 100644 index 000000000000..291ca116743d --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/kontron,sl28cpld-gpio.yaml @@ -0,0 +1,51 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/gpio/kontron,sl28cpld-gpio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: GPIO driver for the sl28cpld board management controller + +maintainers: + - Michael Walle <michael@walle.cc> + +description: | + This module is part of the sl28cpld multi-function device. For more + details see Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml. + + There are three flavors of the GPIO controller, one full featured + input/output with interrupt support (kontron,sl28cpld-gpio), one + output-only (kontron,sl28-gpo) and one input-only (kontron,sl28-gpi). + + Each controller supports 8 GPIO lines. + +properties: + compatible: + enum: + - kontron,sl28cpld-gpio + - kontron,sl28cpld-gpi + - kontron,sl28cpld-gpo + + reg: + maxItems: 1 + + "#interrupt-cells": + const: 2 + + interrupt-controller: true + + "#gpio-cells": + const: 2 + + gpio-controller: true + + gpio-line-names: + minItems: 1 + maxItems: 8 + +required: + - compatible + - "#gpio-cells" + - gpio-controller + +additionalProperties: false diff --git a/Documentation/devicetree/bindings/hwmon/kontron,sl28cpld-hwmon.yaml b/Documentation/devicetree/bindings/hwmon/kontron,sl28cpld-hwmon.yaml new file mode 100644 index 000000000000..1cebd61c6c32 --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/kontron,sl28cpld-hwmon.yaml @@ -0,0 +1,27 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/hwmon/kontron,sl28cpld-hwmon.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Hardware monitoring driver for the sl28cpld board management controller + +maintainers: + - Michael Walle <michael@walle.cc> + +description: | + This module is part of the sl28cpld multi-function device. For more + details see Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml. + +properties: + compatible: + enum: + - kontron,sl28cpld-fan + + reg: + maxItems: 1 + +required: + - compatible + +additionalProperties: false diff --git a/Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml b/Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml new file mode 100644 index 000000000000..e155e3035513 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml @@ -0,0 +1,162 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mfd/kontron,sl28cpld.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Kontron's sl28cpld board management controller + +maintainers: + - Michael Walle <michael@walle.cc> + +description: | + The board management controller may contain different IP blocks like + watchdog, fan monitoring, PWM controller, interrupt controller and a + GPIO controller. + + Currently the MFD exports the following functions at the given + unit-addresses. + + === =========== ======================= + ua name compatible + === =========== ======================= + 0 watchdog kontron,sl28cpld-wdt + 1 hwmon kontron,sl28cpld-fan + 2 pwm kontron,sl28cpld-pwm + 3 pwm kontron,sl28cpld-pwm + 4 gpio kontron,sl28cpld-gpio + 5 gpio kontron,sl28cpld-gpio + 6 gpio kontron,sl28cpld-gpo + 7 gpio kontron,sl28cpld-gpi + === =========== ======================= + + The MFD driver will match the child nodes according to the unit-address + (eg. the reg property) and the compatible string. + +properties: + compatible: + const: kontron,sl28cpld + + reg: + description: + I2C device address. + maxItems: 1 + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + + "#interrupt-cells": + const: 2 + + interrupts: + maxItems: 1 + + interrupt-controller: true + +patternProperties: + "^gpio(@[0-9]+)?$": + $ref: ../gpio/kontron,sl28cpld-gpio.yaml + + "^hwmon(@[0-9]+)?$": + $ref: ../hwmon/kontron,sl28cpld-hwmon.yaml + + "^pwm(@[0-9]+)?$": + $ref: ../pwm/kontron,sl28cpld-pwm.yaml + + "^watchdog(@[0-9]+)?$": + $ref: ../watchdog/kontron,sl28cpld-wdt.yaml + +required: + - "#address-cells" + - "#size-cells" + - compatible + - reg + - interrupts + - "#interrupt-cells" + - interrupt-controller + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/irq.h> + i2c { + #address-cells = <1>; + #size-cells = <0>; + + sl28cpld@4a { + #address-cells = <1>; + #size-cells = <0>; + compatible = "kontron,sl28cpld"; + reg = <0x4a>; + interrupts-extended = <&gpio2 6 IRQ_TYPE_EDGE_FALLING>; + + #interrupt-cells = <2>; + interrupt-controller; + + watchdog@0 { + compatible = "kontron,sl28cpld-wdt"; + reg = <0>; + kontron,assert-wdt-timeout-pin; + }; + + hwmon@1 { + compatible = "kontron,sl28cpld-fan"; + reg = <1>; + }; + + pwm@2 { + compatible = "kontron,sl28cpld-pwm"; + reg = <2>; + #pwm-cells = <2>; + }; + + pwm@3 { + compatible = "kontron,sl28cpld-pwm"; + reg = <3>; + #pwm-cells = <2>; + }; + + gpio@4 { + compatible = "kontron,sl28cpld-gpio"; + reg = <4>; + + gpio-controller; + #gpio-cells = <2>; + + interrupt-controller; + #interrupt-cells = <2>; + }; + + gpio@5 { + compatible = "kontron,sl28cpld-gpio"; + reg = <5>; + + gpio-controller; + #gpio-cells = <2>; + + interrupt-controller; + #interrupt-cells = <2>; + }; + + gpio@6 { + compatible = "kontron,sl28cpld-gpo"; + reg = <6>; + + gpio-controller; + #gpio-cells = <2>; + gpio-line-names = "a", "b", "c"; + }; + + gpio@7 { + compatible = "kontron,sl28cpld-gpi"; + reg = <7>; + + gpio-controller; + #gpio-cells = <2>; + }; + }; + }; diff --git a/Documentation/devicetree/bindings/pwm/kontron,sl28cpld-pwm.yaml b/Documentation/devicetree/bindings/pwm/kontron,sl28cpld-pwm.yaml new file mode 100644 index 000000000000..02fe88c30233 --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/kontron,sl28cpld-pwm.yaml @@ -0,0 +1,35 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pwm/kontron,sl28cpld-pwm.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: PWM driver for the sl28cpld board management controller + +maintainers: + - Michael Walle <michael@walle.cc> + +description: | + This module is part of the sl28cpld multi-function device. For more + details see Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml. + + The controller supports one PWM channel and supports only four distinct + frequencies (250Hz, 500Hz, 1kHz, 2kHz). + +allOf: + - $ref: pwm.yaml# + +properties: + compatible: + const: kontron,sl28cpld-pwm + + reg: + maxItems: 1 + + "#pwm-cells": + const: 2 + +required: + - compatible + +additionalProperties: false diff --git a/Documentation/devicetree/bindings/watchdog/kontron,sl28cpld-wdt.yaml b/Documentation/devicetree/bindings/watchdog/kontron,sl28cpld-wdt.yaml new file mode 100644 index 000000000000..dd6559f2973a --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/kontron,sl28cpld-wdt.yaml @@ -0,0 +1,35 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/watchdog/kontron,sl28cpld-wdt.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Watchdog driver for the sl28cpld board management controller + +maintainers: + - Michael Walle <michael@walle.cc> + +description: | + This module is part of the sl28cpld multi-function device. For more + details see Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml. + +allOf: + - $ref: watchdog.yaml# + +properties: + compatible: + const: kontron,sl28cpld-wdt + + reg: + maxItems: 1 + + kontron,assert-wdt-timeout-pin: + description: The SMARC standard defines a WDT_TIME_OUT# pin. If this + property is set, this output will be pulsed when the watchdog bites + and the system resets. + type: boolean + +required: + - compatible + +additionalProperties: false

[v2,05/16] dt-bindings: mfd: Add bindings for sl28cpld

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