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 X-Spam-Level: X-Spam-Status: No, score=-14.0 required=3.0 tests=BAYES_00,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 0EA3CC433EF for ; Mon, 20 Sep 2021 22:18:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E4680611ED for ; Mon, 20 Sep 2021 22:18:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232859AbhITWUS (ORCPT ); Mon, 20 Sep 2021 18:20:18 -0400 Received: from mail-oi1-f180.google.com ([209.85.167.180]:36811 "EHLO mail-oi1-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229719AbhITWSS (ORCPT ); Mon, 20 Sep 2021 18:18:18 -0400 Received: by mail-oi1-f180.google.com with SMTP id y201so12134803oie.3; Mon, 20 Sep 2021 15:16:50 -0700 (PDT) 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=X6Dg2kZ+RuFpdfWPr4SKLTE5pZ2Koj+j45EvqYukxNI=; b=LlIkZydsGrGE+a2W3EFZQ62+q/QxfPEFG/EjSQAsWwOVBTS4ioALTzLX4oDqnXWjIF QcicJ2oo3QN4oZEj5qNkhP0KJ2jXQLGemfF4UwFxst9NHqk1pretvMJ29HjYkoaJX7cD FtIDk7u2e0xe640W7FeSjBcBmnFmRDdHobwkOqPVIaCxrQoi5H6IVMhDc1n+SwOQ/80p nHZ9gba65PSpRQotpneT2EFBW8iAC26F6JbBbhC9Iosc0m0nETBDRVMYTpvy0sRLwhc4 B47M54jkVPq7OOdtf++lIDnXU8owewWEOOXI8QJN6FE46YpRdQSfcLGWRmZKVUwO4E4v OV6Q== X-Gm-Message-State: AOAM530nRo2spWhSWnsO87KXQmNY9Yo641oYvaHXHyuzjEMJg3RKyjh6 obyWFcvkhbGBEgAShGNhDA== X-Google-Smtp-Source: ABdhPJxxFiHuSeI1aysQlkpw2QvPSQ4QYEo5fJgn4tNf5BzSTXiQZlB02XRSXSA6aiB06/+DKxkINA== X-Received: by 2002:a05:6808:10c1:: with SMTP id s1mr1052756ois.69.1632176210286; Mon, 20 Sep 2021 15:16:50 -0700 (PDT) Received: from robh.at.kernel.org (66-90-148-213.dyn.grandenetworks.net. [66.90.148.213]) by smtp.gmail.com with ESMTPSA id p67sm260373oig.17.2021.09.20.15.16.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 20 Sep 2021 15:16:49 -0700 (PDT) Received: (nullmailer pid 892703 invoked by uid 1000); Mon, 20 Sep 2021 22:16:48 -0000 Date: Mon, 20 Sep 2021 17:16:48 -0500 From: Rob Herring To: Johan Jonker Cc: heiko@sntech.de, rui.zhang@intel.com, daniel.lezcano@linaro.org, amitk@kernel.org, p.zabel@pengutronix.de, linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [RFC PATCH 1/4] dt-bindings: thermal: allow more resets for tsadc node in rockchip-thermal.yaml Message-ID: References: <20210906120404.10005-1-jbx6244@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210906120404.10005-1-jbx6244@gmail.com> Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org On Mon, Sep 06, 2021 at 02:04:01PM +0200, Johan Jonker wrote: > The tsadc node in rk356x.dtsi has more resets defined then currently > allowed by rockchip-thermal.yaml, so fix that in the documentation. > The driver now uses the devm_reset_control_array_get() function, > so reset-names is no longer required, but keep it for legacy reasons. I don't think I'd deprecate it for that reason. And removing it would break any kernel before the devm_reset_control_array_get change. > > Signed-off-by: Johan Jonker > --- > .../devicetree/bindings/thermal/rockchip-thermal.yaml | 8 ++++++-- > 1 file changed, 6 insertions(+), 2 deletions(-) > > diff --git a/Documentation/devicetree/bindings/thermal/rockchip-thermal.yaml b/Documentation/devicetree/bindings/thermal/rockchip-thermal.yaml > index b96ea277b..ee104e451 100644 > --- a/Documentation/devicetree/bindings/thermal/rockchip-thermal.yaml > +++ b/Documentation/devicetree/bindings/thermal/rockchip-thermal.yaml > @@ -37,11 +37,16 @@ properties: > - const: apb_pclk > > resets: > - maxItems: 1 > + minItems: 1 > + maxItems: 3 > > reset-names: > + deprecated: true > + minItems: 1 > items: > - const: tsadc-apb > + - const: tsadc > + - const: tsadc-phy > > "#thermal-sensor-cells": > const: 1 > @@ -71,7 +76,6 @@ required: > - clocks > - clock-names > - resets > - - reset-names > - "#thermal-sensor-cells" > > additionalProperties: false > -- > 2.20.1 > > 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 X-Spam-Level: X-Spam-Status: No, score=-15.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=ham 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 BC563C433F5 for ; Mon, 20 Sep 2021 22:17:09 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 7D84B610A8 for ; Mon, 20 Sep 2021 22:17:09 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 7D84B610A8 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org 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=GIwh3YTkQ4YosBSrwkJ6IpJqkf18goGMrbrr/dOkeWc=; b=HSh62jDkWUMRqA p8g2i3EWUUkJrlivX6mwIM7uS7lMu6p9bvl/oUQuoESO/osAgBaFkzGxFLeRrlrPfWnk7nLucAv9p IWXZLX04hCBU5F6sdZokHCrPWvpkOz4gFj0QewgFApp9iUgph0te+zab9EkJY+B0QvYYxdiTDZYyo eQS9tpb/yJtmELdx02Z5Gcq1zov0FrrlFvyfRJw22fXNiyJp8JDIA4pnib46gnVp55Bh5pD07tYxN VQ+q9tYHHlSrz6sNf3inE1LHNUD2ICmVhRdtKKl+f8AINqjYCgQM3lSWAoGuBkG5b4BACqDsOzp7n qopN/R2UQt3XjVfWwbdw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mSRay-003FCh-1O; Mon, 20 Sep 2021 22:17:04 +0000 Received: from mail-oi1-f174.google.com ([209.85.167.174]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mSRal-003FBy-Aw; Mon, 20 Sep 2021 22:16:52 +0000 Received: by mail-oi1-f174.google.com with SMTP id o66so24199798oib.11; Mon, 20 Sep 2021 15:16:50 -0700 (PDT) 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=X6Dg2kZ+RuFpdfWPr4SKLTE5pZ2Koj+j45EvqYukxNI=; b=5qCpPmZoXycJV/6w8shRfh/widPcJiLn3Tz735oVCtFB6OWGOXRk9El/CyVFBsBwiB EopJHo2NntM5a2ugS/FraEewTChAgUj033af27EULeCoJU4jhMbcFl1gyftLp33z+bIV NYVSLHqLsZpyQonKmjiLFIqFGhz6TJI5VOePRWfigcJNBoGlF0AdepGEw0TgsDmsqjdd qAuDzptM5iG5ifLZA5yGFxW28Fw6NqwbVWI3MltU1M4yWOGVdCXlLCKjERzR9Ct7+l8V Zc2Iv+nZBiLqwH2YsTJIsO/rNUbm1g7obwgH7Zxuf6FBRMFj1RoLXjHzHZAIotVt60zg 0uIg== X-Gm-Message-State: AOAM533TZA30Nj0oJfwt191hjgT6xhN0EmdBJ1j6j3tq+p1xjQCycqFj 90laznrGQEGLgBmMAJHkquCAFun+ZQ== X-Google-Smtp-Source: ABdhPJxxFiHuSeI1aysQlkpw2QvPSQ4QYEo5fJgn4tNf5BzSTXiQZlB02XRSXSA6aiB06/+DKxkINA== X-Received: by 2002:a05:6808:10c1:: with SMTP id s1mr1052756ois.69.1632176210286; Mon, 20 Sep 2021 15:16:50 -0700 (PDT) Received: from robh.at.kernel.org (66-90-148-213.dyn.grandenetworks.net. [66.90.148.213]) by smtp.gmail.com with ESMTPSA id p67sm260373oig.17.2021.09.20.15.16.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 20 Sep 2021 15:16:49 -0700 (PDT) Received: (nullmailer pid 892703 invoked by uid 1000); Mon, 20 Sep 2021 22:16:48 -0000 Date: Mon, 20 Sep 2021 17:16:48 -0500 From: Rob Herring To: Johan Jonker Cc: heiko@sntech.de, rui.zhang@intel.com, daniel.lezcano@linaro.org, amitk@kernel.org, p.zabel@pengutronix.de, linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [RFC PATCH 1/4] dt-bindings: thermal: allow more resets for tsadc node in rockchip-thermal.yaml Message-ID: References: <20210906120404.10005-1-jbx6244@gmail.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210906120404.10005-1-jbx6244@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210920_151651_425691_69B798FD X-CRM114-Status: GOOD ( 17.20 ) 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 Mon, Sep 06, 2021 at 02:04:01PM +0200, Johan Jonker wrote: > The tsadc node in rk356x.dtsi has more resets defined then currently > allowed by rockchip-thermal.yaml, so fix that in the documentation. > The driver now uses the devm_reset_control_array_get() function, > so reset-names is no longer required, but keep it for legacy reasons. I don't think I'd deprecate it for that reason. And removing it would break any kernel before the devm_reset_control_array_get change. > > Signed-off-by: Johan Jonker > --- > .../devicetree/bindings/thermal/rockchip-thermal.yaml | 8 ++++++-- > 1 file changed, 6 insertions(+), 2 deletions(-) > > diff --git a/Documentation/devicetree/bindings/thermal/rockchip-thermal.yaml b/Documentation/devicetree/bindings/thermal/rockchip-thermal.yaml > index b96ea277b..ee104e451 100644 > --- a/Documentation/devicetree/bindings/thermal/rockchip-thermal.yaml > +++ b/Documentation/devicetree/bindings/thermal/rockchip-thermal.yaml > @@ -37,11 +37,16 @@ properties: > - const: apb_pclk > > resets: > - maxItems: 1 > + minItems: 1 > + maxItems: 3 > > reset-names: > + deprecated: true > + minItems: 1 > items: > - const: tsadc-apb > + - const: tsadc > + - const: tsadc-phy > > "#thermal-sensor-cells": > const: 1 > @@ -71,7 +76,6 @@ required: > - clocks > - clock-names > - resets > - - reset-names > - "#thermal-sensor-cells" > > additionalProperties: false > -- > 2.20.1 > > _______________________________________________ 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 X-Spam-Level: X-Spam-Status: No, score=-15.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=ham 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 96279C433F5 for ; Mon, 20 Sep 2021 22:18:50 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 5F71A610A8 for ; Mon, 20 Sep 2021 22:18:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 5F71A610A8 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org 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=NmJm2u7U5UPVgzdeyLTDge7DoaRbjHa5GVRF8yGK3HQ=; b=T3OZitLQBRvP3q Qe9kQh444i2RTbRU7ErGP5pnGZQS5CeoKwp/5Aft8Kjf2Oy0u7CNxmKtixJ/AvBDs+OPQfH7ItrOq L3A+ym9bIw3PiFFLK0rK2cVJ+UFHBH9SF2NoqMdkGEJhc1NEz+0/IKwgTFAZxHtZnmLEF4A33yg0V NvSM+TJWjtGlPcAsIcHXbU0QNb28dIJCND/V1H6OUPMVNO+kAeq62K9PxHsnPi05Bd4QitQqUCte3 /ddXNjsdRM7X5CvMQW8JCD8WTPYWqx1sjvDd5iw+sVeXydQIQf05dSQ+WgCZRibql7ODAClMTRqkX SJH87xxi5w6hTcSdYKtg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mSRao-003FCQ-Ty; Mon, 20 Sep 2021 22:16:55 +0000 Received: from mail-oi1-f174.google.com ([209.85.167.174]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mSRal-003FBy-Aw; Mon, 20 Sep 2021 22:16:52 +0000 Received: by mail-oi1-f174.google.com with SMTP id o66so24199798oib.11; Mon, 20 Sep 2021 15:16:50 -0700 (PDT) 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=X6Dg2kZ+RuFpdfWPr4SKLTE5pZ2Koj+j45EvqYukxNI=; b=5qCpPmZoXycJV/6w8shRfh/widPcJiLn3Tz735oVCtFB6OWGOXRk9El/CyVFBsBwiB EopJHo2NntM5a2ugS/FraEewTChAgUj033af27EULeCoJU4jhMbcFl1gyftLp33z+bIV NYVSLHqLsZpyQonKmjiLFIqFGhz6TJI5VOePRWfigcJNBoGlF0AdepGEw0TgsDmsqjdd qAuDzptM5iG5ifLZA5yGFxW28Fw6NqwbVWI3MltU1M4yWOGVdCXlLCKjERzR9Ct7+l8V Zc2Iv+nZBiLqwH2YsTJIsO/rNUbm1g7obwgH7Zxuf6FBRMFj1RoLXjHzHZAIotVt60zg 0uIg== X-Gm-Message-State: AOAM533TZA30Nj0oJfwt191hjgT6xhN0EmdBJ1j6j3tq+p1xjQCycqFj 90laznrGQEGLgBmMAJHkquCAFun+ZQ== X-Google-Smtp-Source: ABdhPJxxFiHuSeI1aysQlkpw2QvPSQ4QYEo5fJgn4tNf5BzSTXiQZlB02XRSXSA6aiB06/+DKxkINA== X-Received: by 2002:a05:6808:10c1:: with SMTP id s1mr1052756ois.69.1632176210286; Mon, 20 Sep 2021 15:16:50 -0700 (PDT) Received: from robh.at.kernel.org (66-90-148-213.dyn.grandenetworks.net. [66.90.148.213]) by smtp.gmail.com with ESMTPSA id p67sm260373oig.17.2021.09.20.15.16.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 20 Sep 2021 15:16:49 -0700 (PDT) Received: (nullmailer pid 892703 invoked by uid 1000); Mon, 20 Sep 2021 22:16:48 -0000 Date: Mon, 20 Sep 2021 17:16:48 -0500 From: Rob Herring To: Johan Jonker Cc: heiko@sntech.de, rui.zhang@intel.com, daniel.lezcano@linaro.org, amitk@kernel.org, p.zabel@pengutronix.de, linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [RFC PATCH 1/4] dt-bindings: thermal: allow more resets for tsadc node in rockchip-thermal.yaml Message-ID: References: <20210906120404.10005-1-jbx6244@gmail.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210906120404.10005-1-jbx6244@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210920_151651_425691_69B798FD X-CRM114-Status: GOOD ( 17.20 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, Sep 06, 2021 at 02:04:01PM +0200, Johan Jonker wrote: > The tsadc node in rk356x.dtsi has more resets defined then currently > allowed by rockchip-thermal.yaml, so fix that in the documentation. > The driver now uses the devm_reset_control_array_get() function, > so reset-names is no longer required, but keep it for legacy reasons. I don't think I'd deprecate it for that reason. And removing it would break any kernel before the devm_reset_control_array_get change. > > Signed-off-by: Johan Jonker > --- > .../devicetree/bindings/thermal/rockchip-thermal.yaml | 8 ++++++-- > 1 file changed, 6 insertions(+), 2 deletions(-) > > diff --git a/Documentation/devicetree/bindings/thermal/rockchip-thermal.yaml b/Documentation/devicetree/bindings/thermal/rockchip-thermal.yaml > index b96ea277b..ee104e451 100644 > --- a/Documentation/devicetree/bindings/thermal/rockchip-thermal.yaml > +++ b/Documentation/devicetree/bindings/thermal/rockchip-thermal.yaml > @@ -37,11 +37,16 @@ properties: > - const: apb_pclk > > resets: > - maxItems: 1 > + minItems: 1 > + maxItems: 3 > > reset-names: > + deprecated: true > + minItems: 1 > items: > - const: tsadc-apb > + - const: tsadc > + - const: tsadc-phy > > "#thermal-sensor-cells": > const: 1 > @@ -71,7 +76,6 @@ required: > - clocks > - clock-names > - resets > - - reset-names > - "#thermal-sensor-cells" > > additionalProperties: false > -- > 2.20.1 > > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel