From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id AA1D5C433F5 for ; Thu, 24 Feb 2022 19:30:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=WzxOUTMMyjY1dmydNDT0IpI3xSlS7c/b4XckxXCRFXE=; b=HPVYobaUjfO9ST b1yo2Lro7luG89MMBZX1MzCMzDUqIUQaEr/ltClCpBVBkio41M5JP0YraUQNK34BC/mujWWPdaXKL i0Cz8GKbq4i9StxtPbxMhWQbrG4l5OKS47TojB81/7uXopIMDhg0l+a5Ji8qPsWo1B81N+LkhcVDH wChovMulZ6sZv6iMcYt4SEg56Nft0heC/C7dOEP5A/YM/LOqJzu6ST0aQmwPYdhx+P6HgTo017Mav ji/XRqqwZzVm0vRsL55RMMc9sMrUFjr1vTeHimdVs/PVIV1lN6HQeueLqJ1ktC6CY3LNmKnBKtqkb rzUwhudGsvuwl/smPYdw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nNJoi-00299e-HW; Thu, 24 Feb 2022 19:30:20 +0000 Received: from mail-oi1-f175.google.com ([209.85.167.175]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nNJof-002978-5M for linux-rockchip@lists.infradead.org; Thu, 24 Feb 2022 19:30:19 +0000 Received: by mail-oi1-f175.google.com with SMTP id q5so4434634oij.6 for ; Thu, 24 Feb 2022 11:30:16 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=ekpcNnh0CQkIhdkZOZ4oJo4aa5FJvQxiGzn0YCkw9Yo=; b=n69Eo9QOhQ2S3xivWbKWJKm7P8RZSM0jgARG83dNUFXWe3kucViv5lXUDE7T1ISU09 poSHTNen4BK8nRm6KwlNxQNQlr6JCIlP7lqbYsZjhoofWoRUU1M87VZKoQT0Ezdjciu9 brIFKAy2GFmcFkZCt+/46h3Cm+ihJXeNkmGTiOP9ap6w7rerLQnIJRTr/VciGYbuKB8i eVrrPhAl8JO8+vvz1kcwByzgygCFMJq+edHL76zwQxXy9UOON0KwNWOlzgWcVYHQ46h2 pnxcHXgXuTMvgnCV2ivZhG77VN7ODcODVuekeu7/Pti24K5FlVkFe+gFaG+R2iOpHdM/ 6aIA== X-Gm-Message-State: AOAM532+k2Ncj7X2NTICS+ftecDYUM9fuQUpWC2ebGtePNoO+gjvyEwI wrA6RwZ2TIVM9xEKJHhKTQ== X-Google-Smtp-Source: ABdhPJw2tKmfA1xpJykLBPLMI+cydZGFmsj/OEnHxYqqwbFQ40uAcC+43LxErKAda94gyqNLi10HzA== X-Received: by 2002:a05:6870:5401:b0:ce:c0c9:5fa with SMTP id d1-20020a056870540100b000cec0c905famr6971254oan.76.1645731015422; Thu, 24 Feb 2022 11:30:15 -0800 (PST) Received: from robh.at.kernel.org (66-90-148-213.dyn.grandenetworks.net. [66.90.148.213]) by smtp.gmail.com with ESMTPSA id q14-20020a4a330e000000b002e89ed90006sm84172ooq.44.2022.02.24.11.30.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 24 Feb 2022 11:30:14 -0800 (PST) Received: (nullmailer pid 3448733 invoked by uid 1000); Thu, 24 Feb 2022 19:30:13 -0000 Date: Thu, 24 Feb 2022 13:30:13 -0600 From: Rob Herring To: Robin Murphy Cc: Chris Morgan , devicetree@vger.kernel.org, lee.jones@linaro.org, heiko@sntech.de, zyw@rock-chips.com, zhangqing@rock-chips.com, linux-rockchip@lists.infradead.org, Chris Morgan Subject: Re: [PATCH v3] dt-bindings: mfd: rk808: Convert bindings to yaml Message-ID: References: <20220215211548.31940-1-macroalpha82@gmail.com> <9142ff41-4e95-3d52-bbe3-4f638b7d0fb2@arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <9142ff41-4e95-3d52-bbe3-4f638b7d0fb2@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220224_113017_266943_E1E0FBF4 X-CRM114-Status: GOOD ( 30.48 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org On Wed, Feb 16, 2022 at 12:39:09PM +0000, Robin Murphy wrote: > On 2022-02-15 21:15, Chris Morgan wrote: > [...] > > diff --git a/Documentation/devicetree/bindings/mfd/rockchip,rk805.yaml b/Documentation/devicetree/bindings/mfd/rockchip,rk805.yaml > > new file mode 100644 > > index 000000000000..1b928b94fbfd > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/mfd/rockchip,rk805.yaml > > @@ -0,0 +1,88 @@ > > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause > > +%YAML 1.2 > > +--- > > +$id: http://devicetree.org/schemas/mfd/rockchip,rk805.yaml# > > +$schema: http://devicetree.org/meta-schemas/core.yaml# > > + > > +title: RK805 Power Management Integrated Circuit > > + > > +maintainers: > > + - Chris Zhong > > + - Zhang Qing > > + > > +description: | > > + Rockchip RK805 series PMIC. This device consists of an i2c controlled MFD > > + that includes multiple switchable regulators. > > + > > +properties: > > + compatible: > > + enum: > > + - rockchip,rk805 > > + > > + reg: > > + maxItems: 1 > > + > > + interrupts: > > + maxItems: 1 > > + > > + '#clock-cells': > > + const: 1 > > + > > + clock-output-names: > > + maxItems: 2 > > I think this should be 1, since RK805 only has a single CLK32K output - > ditto for RK817. > > [...] > > diff --git a/Documentation/devicetree/bindings/mfd/rockchip,rk808.yaml b/Documentation/devicetree/bindings/mfd/rockchip,rk808.yaml > > new file mode 100644 > > index 000000000000..f5908fa01a61 > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/mfd/rockchip,rk808.yaml > > @@ -0,0 +1,257 @@ > > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause > > +%YAML 1.2 > > +--- > > +$id: http://devicetree.org/schemas/mfd/rockchip,rk808.yaml# > > +$schema: http://devicetree.org/meta-schemas/core.yaml# > > + > > +title: RK808 Power Management Integrated Circuit > > + > > +maintainers: > > + - Chris Zhong > > + - Zhang Qing > > + > > +description: | > > + Rockchip RK808 series PMIC. This device consists of an i2c controlled MFD > > + that includes regulators, an RTC, and a power button. > > + > > +properties: > > + compatible: > > + enum: > > + - rockchip,rk808 > > + > > + reg: > > + maxItems: 1 > > + > > + interrupts: > > + maxItems: 1 > > + > > + '#clock-cells': > > + description: > > + See for clock IDs. > > + const: 1 > > + > > + clock-output-names: > > + description: > > + From common clock binding to override the default output clock name. > > minItems should be consistent across RK808/818/819 - when two clocks exist, > either it's legitimate to rename only the first one, or it isn't. There > shouldn't be an arbitrary difference just because of what existing DTs > happen to use. > > > + maxItems: 2 > > + > > + rockchip,system-power-controller: > > + type: boolean > > + description: > > + Telling whether or not this PMIC is controlling the system power. > > + > > + wakeup-source: > > + type: boolean > > + description: > > + Device can be used as a wakeup source. > > + > > + vcc1-supply: > > + description: > > + The input supply for DCDC_REG1. > > + > > + vcc2-supply: > > + description: > > + The input supply for DCDC_REG2. > > + > > + vcc3-supply: > > + description: > > + The input supply for DCDC_REG3. > > + > > + vcc4-supply: > > + description: > > + The input supply for DCDC_REG4. > > + > > + vcc6-supply: > > + description: > > + The input supply for LDO_REG1 and LDO_REG2. > > + > > + vcc7-supply: > > + description: > > + The input supply for LDO_REG3 and LDO_REG7. > > + > > + vcc8-supply: > > + description: > > + The input supply for SWITCH_REG1. > > + > > + vcc9-supply: > > + description: > > + The input supply for LDO_REG4 and LDO_REG5. > > + > > + vcc10-supply: > > + description: > > + The input supply for LDO_REG6. > > + > > + vcc11-supply: > > + description: > > + The input supply for LDO_REG8. > > + > > + vcc12-supply: > > + description: > > + The input supply for SWITCH_REG2. > > + > > + vddio-supply: > > + description: > > + The input supply for digital IO. > > + > > + dvs-gpios: > > + description: | > > + buck1/2 can be controlled by gpio dvs, this is GPIO specifiers for > > + 2 host gpio's used for dvs. The format of the gpio specifier > > + depends in the gpio controller. If DVS GPIOs aren't present, > > + voltage changes will happen very quickly with no slow ramp time. > > + maxItems: 2 > > + > > + regulators: > > + type: object > > + patternProperties: > > + "^(DCDC_REG[1-4]|LDO_REG[1-8]|SWITCH_REG[1-2])$": > > + type: object > > + $ref: ../regulator/regulator.yaml# > > + unevaluatedProperties: false > > + > > +required: > > + - compatible > > + - reg > > + - interrupts > > + - "#clock-cells" > > Is this actually required (ditto elsewhere)? Technically it's only necessary > if there are any clock consumers targeting this node, so arguably it should > be the clock binding's responsibility to validate that. > > It wouldn't make much sense for a dedicated clock controller to omit > #clock-cells such that it couldn't have any consumers, but given that these > things are primarily PMICs I think it's reasonable to allow a board not to > care about the clocks at all if it doesn't use them. I know that the > original binding claimed it was required, but if we're already relaxing that > for RK805 here then we may as well relax it entirely. Fair enough. However, if the consumer could be in an overlay, then I think we want it to be required and not make the overlay add the property. Properties just appearing within nodes at runtime is likely not well supported in OSs. Rob _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 57F61C433F5 for ; Thu, 24 Feb 2022 19:30:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230453AbiBXTar (ORCPT ); Thu, 24 Feb 2022 14:30:47 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54872 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232909AbiBXTaq (ORCPT ); Thu, 24 Feb 2022 14:30:46 -0500 Received: from mail-oi1-f174.google.com (mail-oi1-f174.google.com [209.85.167.174]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5C9E121DF1E for ; Thu, 24 Feb 2022 11:30:16 -0800 (PST) Received: by mail-oi1-f174.google.com with SMTP id j2so4426792oie.7 for ; Thu, 24 Feb 2022 11:30:16 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=ekpcNnh0CQkIhdkZOZ4oJo4aa5FJvQxiGzn0YCkw9Yo=; b=rCab1gLBq/DgkHcXrvUPphKr/NodlZrTdCwcK7Dt8e5Y0KENUtJby4BnMZBAAhqS+V OCa30vPO1DGdYIWd/ivSkBrjHPhehtVcGY132j6QlVZZo1GA+H8Oc2T0kkUhtULQCOZ4 w7KIPtjSVfBWGW+jE37WCAJ4Q89HCpMjbbs8SIxuxzMdOz1Gsim+GPeVGUC5VZxha894 veiqBXwQ1pQfDFZuJtcruwoGCwwpE/taWgml2nImFZxjjjgnkwadWz0CLpqAY2/ZC67Y a6vN1gyxyzix6iVVIXGirEMhbBJWVUOTT2G9mNATNDKrmw7KYirITZbpdIo9SKh9BCW/ W+ug== X-Gm-Message-State: AOAM533GPR6VRzf3CZzRtDUFYIr0v7WIJPvVmngd96dVX3XnIWPYRbjw 2a4fEX9F6WocZ9HNF+RelA== X-Google-Smtp-Source: ABdhPJw2tKmfA1xpJykLBPLMI+cydZGFmsj/OEnHxYqqwbFQ40uAcC+43LxErKAda94gyqNLi10HzA== X-Received: by 2002:a05:6870:5401:b0:ce:c0c9:5fa with SMTP id d1-20020a056870540100b000cec0c905famr6971254oan.76.1645731015422; Thu, 24 Feb 2022 11:30:15 -0800 (PST) Received: from robh.at.kernel.org (66-90-148-213.dyn.grandenetworks.net. [66.90.148.213]) by smtp.gmail.com with ESMTPSA id q14-20020a4a330e000000b002e89ed90006sm84172ooq.44.2022.02.24.11.30.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 24 Feb 2022 11:30:14 -0800 (PST) Received: (nullmailer pid 3448733 invoked by uid 1000); Thu, 24 Feb 2022 19:30:13 -0000 Date: Thu, 24 Feb 2022 13:30:13 -0600 From: Rob Herring To: Robin Murphy Cc: Chris Morgan , devicetree@vger.kernel.org, lee.jones@linaro.org, heiko@sntech.de, zyw@rock-chips.com, zhangqing@rock-chips.com, linux-rockchip@lists.infradead.org, Chris Morgan Subject: Re: [PATCH v3] dt-bindings: mfd: rk808: Convert bindings to yaml Message-ID: References: <20220215211548.31940-1-macroalpha82@gmail.com> <9142ff41-4e95-3d52-bbe3-4f638b7d0fb2@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <9142ff41-4e95-3d52-bbe3-4f638b7d0fb2@arm.com> Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On Wed, Feb 16, 2022 at 12:39:09PM +0000, Robin Murphy wrote: > On 2022-02-15 21:15, Chris Morgan wrote: > [...] > > diff --git a/Documentation/devicetree/bindings/mfd/rockchip,rk805.yaml b/Documentation/devicetree/bindings/mfd/rockchip,rk805.yaml > > new file mode 100644 > > index 000000000000..1b928b94fbfd > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/mfd/rockchip,rk805.yaml > > @@ -0,0 +1,88 @@ > > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause > > +%YAML 1.2 > > +--- > > +$id: http://devicetree.org/schemas/mfd/rockchip,rk805.yaml# > > +$schema: http://devicetree.org/meta-schemas/core.yaml# > > + > > +title: RK805 Power Management Integrated Circuit > > + > > +maintainers: > > + - Chris Zhong > > + - Zhang Qing > > + > > +description: | > > + Rockchip RK805 series PMIC. This device consists of an i2c controlled MFD > > + that includes multiple switchable regulators. > > + > > +properties: > > + compatible: > > + enum: > > + - rockchip,rk805 > > + > > + reg: > > + maxItems: 1 > > + > > + interrupts: > > + maxItems: 1 > > + > > + '#clock-cells': > > + const: 1 > > + > > + clock-output-names: > > + maxItems: 2 > > I think this should be 1, since RK805 only has a single CLK32K output - > ditto for RK817. > > [...] > > diff --git a/Documentation/devicetree/bindings/mfd/rockchip,rk808.yaml b/Documentation/devicetree/bindings/mfd/rockchip,rk808.yaml > > new file mode 100644 > > index 000000000000..f5908fa01a61 > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/mfd/rockchip,rk808.yaml > > @@ -0,0 +1,257 @@ > > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause > > +%YAML 1.2 > > +--- > > +$id: http://devicetree.org/schemas/mfd/rockchip,rk808.yaml# > > +$schema: http://devicetree.org/meta-schemas/core.yaml# > > + > > +title: RK808 Power Management Integrated Circuit > > + > > +maintainers: > > + - Chris Zhong > > + - Zhang Qing > > + > > +description: | > > + Rockchip RK808 series PMIC. This device consists of an i2c controlled MFD > > + that includes regulators, an RTC, and a power button. > > + > > +properties: > > + compatible: > > + enum: > > + - rockchip,rk808 > > + > > + reg: > > + maxItems: 1 > > + > > + interrupts: > > + maxItems: 1 > > + > > + '#clock-cells': > > + description: > > + See for clock IDs. > > + const: 1 > > + > > + clock-output-names: > > + description: > > + From common clock binding to override the default output clock name. > > minItems should be consistent across RK808/818/819 - when two clocks exist, > either it's legitimate to rename only the first one, or it isn't. There > shouldn't be an arbitrary difference just because of what existing DTs > happen to use. > > > + maxItems: 2 > > + > > + rockchip,system-power-controller: > > + type: boolean > > + description: > > + Telling whether or not this PMIC is controlling the system power. > > + > > + wakeup-source: > > + type: boolean > > + description: > > + Device can be used as a wakeup source. > > + > > + vcc1-supply: > > + description: > > + The input supply for DCDC_REG1. > > + > > + vcc2-supply: > > + description: > > + The input supply for DCDC_REG2. > > + > > + vcc3-supply: > > + description: > > + The input supply for DCDC_REG3. > > + > > + vcc4-supply: > > + description: > > + The input supply for DCDC_REG4. > > + > > + vcc6-supply: > > + description: > > + The input supply for LDO_REG1 and LDO_REG2. > > + > > + vcc7-supply: > > + description: > > + The input supply for LDO_REG3 and LDO_REG7. > > + > > + vcc8-supply: > > + description: > > + The input supply for SWITCH_REG1. > > + > > + vcc9-supply: > > + description: > > + The input supply for LDO_REG4 and LDO_REG5. > > + > > + vcc10-supply: > > + description: > > + The input supply for LDO_REG6. > > + > > + vcc11-supply: > > + description: > > + The input supply for LDO_REG8. > > + > > + vcc12-supply: > > + description: > > + The input supply for SWITCH_REG2. > > + > > + vddio-supply: > > + description: > > + The input supply for digital IO. > > + > > + dvs-gpios: > > + description: | > > + buck1/2 can be controlled by gpio dvs, this is GPIO specifiers for > > + 2 host gpio's used for dvs. The format of the gpio specifier > > + depends in the gpio controller. If DVS GPIOs aren't present, > > + voltage changes will happen very quickly with no slow ramp time. > > + maxItems: 2 > > + > > + regulators: > > + type: object > > + patternProperties: > > + "^(DCDC_REG[1-4]|LDO_REG[1-8]|SWITCH_REG[1-2])$": > > + type: object > > + $ref: ../regulator/regulator.yaml# > > + unevaluatedProperties: false > > + > > +required: > > + - compatible > > + - reg > > + - interrupts > > + - "#clock-cells" > > Is this actually required (ditto elsewhere)? Technically it's only necessary > if there are any clock consumers targeting this node, so arguably it should > be the clock binding's responsibility to validate that. > > It wouldn't make much sense for a dedicated clock controller to omit > #clock-cells such that it couldn't have any consumers, but given that these > things are primarily PMICs I think it's reasonable to allow a board not to > care about the clocks at all if it doesn't use them. I know that the > original binding claimed it was required, but if we're already relaxing that > for RK805 here then we may as well relax it entirely. Fair enough. However, if the consumer could be in an overlay, then I think we want it to be required and not make the overlay add the property. Properties just appearing within nodes at runtime is likely not well supported in OSs. Rob