From patchwork Thu Apr 23 17:45:31 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Walle X-Patchwork-Id: 207018 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AF1AFC55196 for ; Thu, 23 Apr 2020 17:47:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8E6982076C for ; Thu, 23 Apr 2020 17:47:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=walle.cc header.i=@walle.cc header.b="WluvSssq" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730172AbgDWRrX (ORCPT ); Thu, 23 Apr 2020 13:47:23 -0400 Received: from ssl.serverraum.org ([176.9.125.105]:36203 "EHLO ssl.serverraum.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730003AbgDWRqg (ORCPT ); Thu, 23 Apr 2020 13:46:36 -0400 Received: from apollo.fritz.box (unknown [IPv6:2a02:810c:c200:2e91:6257:18ff:fec4:ca34]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-384) server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by ssl.serverraum.org (Postfix) with ESMTPSA id 7607E23060; Thu, 23 Apr 2020 19:46:29 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=walle.cc; s=mail2016061301; t=1587663990; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=KXy7nJgnAk11tydoI+EmDNRy8IKIQCr6Ymye2zVSgho=; b=WluvSssqE7oCSjWbUvdaNSWWE7f5p7y+2mQlmogEWBHnTWL4b3xyDPyo9GgvmFCPbVWRk5 jGqNKwy73d2R7731a0oyuB85VaVRmbCrIEroqh7e1XtLaR/AKlFOBQPSQ40PPRgsqoEzje wYkTqeoMrFgu6z+VhwmPjFlk+/WFaGc= From: Michael Walle To: Andy Shevchenko , 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 , Bartosz Golaszewski , Rob Herring , Jean Delvare , Guenter Roeck , Lee Jones , Thierry Reding , =?utf-8?q?Uwe_Kleine-K?= =?utf-8?b?w7ZuaWc=?= , Wim Van Sebroeck , Shawn Guo , Li Yang , Thomas Gleixner , Jason Cooper , Marc Zyngier , Mark Brown , Greg Kroah-Hartman , Michael Walle Subject: [PATCH v3 04/16] dt-bindings: mfd: Add bindings for sl28cpld Date: Thu, 23 Apr 2020 19:45:31 +0200 Message-Id: <20200423174543.17161-5-michael@walle.cc> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200423174543.17161-1-michael@walle.cc> References: <20200423174543.17161-1-michael@walle.cc> MIME-Version: 1.0 X-Spamd-Bar: ++++++ X-Rspamd-Server: web X-Rspamd-Queue-Id: 7607E23060 X-Spamd-Result: default: False [6.40 / 15.00]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; R_MISSING_CHARSET(2.50)[]; FREEMAIL_ENVRCPT(0.00)[gmail.com]; TAGGED_RCPT(0.00)[dt]; MIME_GOOD(-0.10)[text/plain]; BROKEN_CONTENT_TYPE(1.50)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_SPAM(0.00)[0.954]; DKIM_SIGNED(0.00)[]; DBL_PROHIBIT(0.00)[0.0.0.5:email,0.0.0.1:email,0.0.0.2:email,0.0.0.6:email,0.0.0.7:email,0.0.0.4:email,0.0.0.3:email,0.0.0.0:email]; RCPT_COUNT_TWELVE(0.00)[25]; MID_CONTAINS_FROM(1.00)[]; RCVD_COUNT_ZERO(0.00)[0]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:31334, ipnet:2a02:810c:8000::/33, country:DE]; FREEMAIL_CC(0.00)[linaro.org,baylibre.com,kernel.org,suse.com,roeck-us.net,gmail.com,pengutronix.de,linux-watchdog.org,nxp.com,linutronix.de,lakedaemon.net,linuxfoundation.org,walle.cc]; SUSPICIOUS_RECIPS(1.50)[] X-Spam: Yes Sender: linux-gpio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org This adds device tree bindings for the board management controller found on the Kontron SMARC-sAL28 board. Signed-off-by: Michael Walle --- .../bindings/gpio/kontron,sl28cpld-gpio.yaml | 51 ++++++ .../hwmon/kontron,sl28cpld-hwmon.yaml | 27 +++ .../bindings/mfd/kontron,sl28cpld.yaml | 162 ++++++++++++++++++ .../bindings/pwm/kontron,sl28cpld-pwm.yaml | 35 ++++ .../watchdog/kontron,sl28cpld-wdt.yaml | 35 ++++ 5 files changed, 310 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/kontron,sl28cpld-gpio.yaml create mode 100644 Documentation/devicetree/bindings/hwmon/kontron,sl28cpld-hwmon.yaml create mode 100644 Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml create mode 100644 Documentation/devicetree/bindings/pwm/kontron,sl28cpld-pwm.yaml create mode 100644 Documentation/devicetree/bindings/watchdog/kontron,sl28cpld-wdt.yaml 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 + +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 + +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 + +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]+)?$": + $ref: ../gpio/kontron,sl28cpld-gpio.yaml + + "^hwmon(@[0-9]+)?$": + $ref: ../hwmon/kontron,sl28cpld-hwmon.yaml + + "^pwm(@[0-9]+)?$": + $ref: ../pwm/kontron,sl28cpld-pwm.yaml + + "^watchdog(@[0-9]+)?$": + $ref: ../watchdog/kontron,sl28cpld-wdt.yaml + +required: + - "#address-cells" + - "#size-cells" + - compatible + - reg + - interrupts + - "#interrupt-cells" + - interrupt-controller + +additionalProperties: false + +examples: + - | + #include + i2c { + #address-cells = <1>; + #size-cells = <0>; + + sl28cpld@4a { + #address-cells = <1>; + #size-cells = <0>; + compatible = "kontron,sl28cpld"; + reg = <0x4a>; + interrupts-extended = <&gpio2 6 IRQ_TYPE_EDGE_FALLING>; + + #interrupt-cells = <2>; + interrupt-controller; + + watchdog@0 { + compatible = "kontron,sl28cpld-wdt"; + reg = <0>; + kontron,assert-wdt-timeout-pin; + }; + + hwmon@1 { + compatible = "kontron,sl28cpld-fan"; + reg = <1>; + }; + + pwm@2 { + compatible = "kontron,sl28cpld-pwm"; + reg = <2>; + #pwm-cells = <2>; + }; + + pwm@3 { + compatible = "kontron,sl28cpld-pwm"; + reg = <3>; + #pwm-cells = <2>; + }; + + gpio@4 { + compatible = "kontron,sl28cpld-gpio"; + reg = <4>; + + gpio-controller; + #gpio-cells = <2>; + + interrupt-controller; + #interrupt-cells = <2>; + }; + + gpio@5 { + compatible = "kontron,sl28cpld-gpio"; + reg = <5>; + + gpio-controller; + #gpio-cells = <2>; + + interrupt-controller; + #interrupt-cells = <2>; + }; + + gpio@6 { + compatible = "kontron,sl28cpld-gpo"; + reg = <6>; + + gpio-controller; + #gpio-cells = <2>; + gpio-line-names = "a", "b", "c"; + }; + + gpio@7 { + compatible = "kontron,sl28cpld-gpi"; + reg = <7>; + + gpio-controller; + #gpio-cells = <2>; + }; + }; + }; diff --git a/Documentation/devicetree/bindings/pwm/kontron,sl28cpld-pwm.yaml b/Documentation/devicetree/bindings/pwm/kontron,sl28cpld-pwm.yaml new file mode 100644 index 000000000000..02fe88c30233 --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/kontron,sl28cpld-pwm.yaml @@ -0,0 +1,35 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$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 + +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 + +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