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 7E699C433F5 for ; Wed, 11 May 2022 14:38:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244845AbiEKOiF (ORCPT ); Wed, 11 May 2022 10:38:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44526 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241866AbiEKOh7 (ORCPT ); Wed, 11 May 2022 10:37:59 -0400 Received: from mail-oa1-f54.google.com (mail-oa1-f54.google.com [209.85.160.54]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 500664EA0B; Wed, 11 May 2022 07:37:55 -0700 (PDT) Received: by mail-oa1-f54.google.com with SMTP id 586e51a60fabf-edeb6c3642so3061527fac.3; Wed, 11 May 2022 07:37:55 -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=9BCuf6md1fXzU+TlOHk5VXDJaJ6H3g0zAe1qyFY7QIk=; b=dZh1WxBEeGQKumtPUYfMFuH1dY5rrfiGaIDc4bcJaP49VAK9u+uU5Qe/wwNRGmwDK2 FvOO+N+OQBSOJOrSyjfDpKjS3F6jxhGPCNd0D9a0xjahUg6V2LHHhV7Rzg3jgoaSJARE lsraAq4IcARRKLVaS8h0yZX0nvA59llEnUvJE4Qnn0+doxujYHl30iBRhspYPdr1HW/X AV1chRXfl9gx+LHGthJCi1iuo87AxfVtKu3y5WyGZ2wRLhCk/X9m/v8bDtUYxtnP5Iy7 SfbFFeW5B/vk4ac5QvzcIFKQDTjdQT4vey2ZsfzsoefEet/ZtSQaR8UcABcxc//za5Bp JVJw== X-Gm-Message-State: AOAM533G7NFAS/wH82ykn3B75uUHtup1eX73Jjfdi9LAER50sZJp5KMH X1lT9QTJZTspvy0D7KvDYA== X-Google-Smtp-Source: ABdhPJzV7lHSAaPCIpfLtDq3OLUgefj/X2KavadZ2NnmpnbPgLsOcT7C0+3CfdxjsheCNj3k9xF1Cw== X-Received: by 2002:a05:6870:65a0:b0:ed:a635:eee9 with SMTP id fp32-20020a05687065a000b000eda635eee9mr2795975oab.48.1652279874613; Wed, 11 May 2022 07:37:54 -0700 (PDT) Received: from robh.at.kernel.org (66-90-144-107.dyn.grandenetworks.net. [66.90.144.107]) by smtp.gmail.com with ESMTPSA id t2-20020a056871020200b000e686d1388esm600266oad.40.2022.05.11.07.37.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 May 2022 07:37:54 -0700 (PDT) Received: (nullmailer pid 272781 invoked by uid 1000); Wed, 11 May 2022 14:37:53 -0000 Date: Wed, 11 May 2022 09:37:53 -0500 From: Rob Herring To: Rex-BC Chen Cc: rafael@kernel.org, roger.lu@mediatek.com, krzk+dt@kernel.org, robh+dt@kernel.org, hsinyi@google.com, angelogioacchino.delregno@collabora.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, matthias.bgg@gmail.com, devicetree@vger.kernel.org, linux-mediatek@lists.infradead.org, khilman@baylibre.com, jia-wei.chang@mediatek.com, Project_Global_Chrome_Upstream_Group@mediatek.com, linux-pm@vger.kernel.org, viresh.kumar@linaro.org Subject: Re: [PATCH v6 01/10] dt-bindings: cpufreq: mediatek: Add MediaTek CCI property Message-ID: <20220511143753.GA272748-robh@kernel.org> References: <20220505115226.20130-1-rex-bc.chen@mediatek.com> <20220505115226.20130-2-rex-bc.chen@mediatek.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220505115226.20130-2-rex-bc.chen@mediatek.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 05 May 2022 19:52:17 +0800, Rex-BC Chen wrote: > MediaTek Cache Coherent Interconnect (CCI) uses software devfreq module > for scaling clock frequency and adjust voltage. > The phandle could be linked between CPU and MediaTek CCI for some > MediaTek SoCs, like MT8183 and MT8186. > > The reason we need the link status between cpufreq and MediaTek cci is > cpufreq and mediatek cci could share the same regulator in some MediaTek > SoCs. Therefore, to prevent the issue of high frequency and low voltage, > we need to use this to make sure mediatek cci is ready. > > Signed-off-by: Rex-BC Chen > Reviewed-by: AngeloGioacchino Del Regno > --- > .../devicetree/bindings/cpufreq/cpufreq-mediatek.txt | 7 +++++++ > 1 file changed, 7 insertions(+) > Acked-by: Rob Herring 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 799AAC433F5 for ; Wed, 11 May 2022 14:38:19 +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=oXhQiUCc/kSGg7T54Fdcn5M8CpdJitJ7WUXZI1TnpCQ=; b=llVmnNZy6uRGtl pCDywKVN3jy/V2dfoCJWUSVT7dZXMsi9JGeIMTjs5M5VyfjAuC+4toN2BqOeZwkDl/Bn/IxAmZ+sE Yy/i5sqbmjJLR7ITeT2wPWfV7OjMslCw4lQ88L3sgsML5yMfCGGIDXhK6kWkNEkB/IGLXWxqpms/S UWW396Afmr9g5o4eIxh+cqI10Uz9R4Yx5rIPPdkdY3Mm669JwVKJPlfgccE1cDMSTtQ8mhfsaxRUx JFnOKIEVLAVD0HypIBaBrj4yN/30/rD02xrA1f13i56wtNZkLVTJb95Pe4Jqd7pGS5LRe3PeWvrmo 6MQ3EnvcK7edoHSJoj6w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nonTi-007Fpi-EX; Wed, 11 May 2022 14:38:14 +0000 Received: from mail-oa1-f46.google.com ([209.85.160.46]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nonTQ-007Fga-F4; Wed, 11 May 2022 14:37:58 +0000 Received: by mail-oa1-f46.google.com with SMTP id 586e51a60fabf-e2fa360f6dso3069288fac.2; Wed, 11 May 2022 07:37:55 -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=9BCuf6md1fXzU+TlOHk5VXDJaJ6H3g0zAe1qyFY7QIk=; b=vl3rBA+hPs6XCdVKi1N75St88Ez3rW/2oTCu5lTTKzMEqDS3hDSCb4riSEJkcOi81v Onx4e7trRq3OfYjszXJwiAze9orp4KhkBWbvC1XK3fpBotl8q3MHsBV9y2MN0WRPlkWK 7iFgYSIrjQTRdimq2G2undxCauJklIwZdj+ZNB6QDjt1YGvkIgwtEKP5U/EowV7a3WhF EthQewoWRunWYe2G/XEXCzr8Pv6kFIngST2SxKKbzP2MoQAS7rxrS2N9IxyURVcOEpnr /ufDaZYSBDdWsHDUkQWf9e1od3tcgrEY6vk4uzuq8SidmkCk/LuEjgxbbUbVluIEhT0I jPqg== X-Gm-Message-State: AOAM530of4MW3gz8vOauowTiSpziv8HElelsuwK6cw1GHcF/nVZF0T0/ iBhil5fF4L3P+XB/+tq91Q== X-Google-Smtp-Source: ABdhPJzV7lHSAaPCIpfLtDq3OLUgefj/X2KavadZ2NnmpnbPgLsOcT7C0+3CfdxjsheCNj3k9xF1Cw== X-Received: by 2002:a05:6870:65a0:b0:ed:a635:eee9 with SMTP id fp32-20020a05687065a000b000eda635eee9mr2795975oab.48.1652279874613; Wed, 11 May 2022 07:37:54 -0700 (PDT) Received: from robh.at.kernel.org (66-90-144-107.dyn.grandenetworks.net. [66.90.144.107]) by smtp.gmail.com with ESMTPSA id t2-20020a056871020200b000e686d1388esm600266oad.40.2022.05.11.07.37.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 May 2022 07:37:54 -0700 (PDT) Received: (nullmailer pid 272781 invoked by uid 1000); Wed, 11 May 2022 14:37:53 -0000 Date: Wed, 11 May 2022 09:37:53 -0500 From: Rob Herring To: Rex-BC Chen Cc: rafael@kernel.org, roger.lu@mediatek.com, krzk+dt@kernel.org, robh+dt@kernel.org, hsinyi@google.com, angelogioacchino.delregno@collabora.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, matthias.bgg@gmail.com, devicetree@vger.kernel.org, linux-mediatek@lists.infradead.org, khilman@baylibre.com, jia-wei.chang@mediatek.com, Project_Global_Chrome_Upstream_Group@mediatek.com, linux-pm@vger.kernel.org, viresh.kumar@linaro.org Subject: Re: [PATCH v6 01/10] dt-bindings: cpufreq: mediatek: Add MediaTek CCI property Message-ID: <20220511143753.GA272748-robh@kernel.org> References: <20220505115226.20130-1-rex-bc.chen@mediatek.com> <20220505115226.20130-2-rex-bc.chen@mediatek.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20220505115226.20130-2-rex-bc.chen@mediatek.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220511_073756_528447_3B764AA1 X-CRM114-Status: GOOD ( 13.11 ) X-BeenThere: linux-mediatek@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-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org On Thu, 05 May 2022 19:52:17 +0800, Rex-BC Chen wrote: > MediaTek Cache Coherent Interconnect (CCI) uses software devfreq module > for scaling clock frequency and adjust voltage. > The phandle could be linked between CPU and MediaTek CCI for some > MediaTek SoCs, like MT8183 and MT8186. > > The reason we need the link status between cpufreq and MediaTek cci is > cpufreq and mediatek cci could share the same regulator in some MediaTek > SoCs. Therefore, to prevent the issue of high frequency and low voltage, > we need to use this to make sure mediatek cci is ready. > > Signed-off-by: Rex-BC Chen > Reviewed-by: AngeloGioacchino Del Regno > --- > .../devicetree/bindings/cpufreq/cpufreq-mediatek.txt | 7 +++++++ > 1 file changed, 7 insertions(+) > Acked-by: Rob Herring _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek 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 00E0DC433F5 for ; Wed, 11 May 2022 14:40:14 +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=j9Y3YBPvBJjW69BJMNHgIdVpu+fWyyhzUryEwpab+w8=; b=l/rQnlsceaJgW+ 1JZ0/qBBLWgEuNMqNWlD/N1fa3PAzn5SxpWv6Ehkt5C+pKwh5WCNVVHEOu7Qa0q9rr/M5b+as1XFt PiyhIkRK5tdALuRJCfOdTiiqEWudQkBFyv/GW3Zlz56Q53mhm8eCHHtUkNOmoiz70aNcICGw6kI4t 6BFHBiFzV12pJzdrkRbkY3iKo95b9BzTA+5Vi1YFWUhWiHrIdkhV6uDEP8/nCHJHP21iCvP7ZfPOE /BHBZNa/dIQi+2Av7LJekvCClTbj6rRMvHcEivr/D3fYlwVo9hZuO6qd9GzZu5yfmoV9kzQ2y55lF figzeLxBCXbemV7k99lQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nonTT-007FiA-L9; Wed, 11 May 2022 14:37:59 +0000 Received: from mail-oa1-f46.google.com ([209.85.160.46]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nonTQ-007Fga-F4; Wed, 11 May 2022 14:37:58 +0000 Received: by mail-oa1-f46.google.com with SMTP id 586e51a60fabf-e2fa360f6dso3069288fac.2; Wed, 11 May 2022 07:37:55 -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=9BCuf6md1fXzU+TlOHk5VXDJaJ6H3g0zAe1qyFY7QIk=; b=vl3rBA+hPs6XCdVKi1N75St88Ez3rW/2oTCu5lTTKzMEqDS3hDSCb4riSEJkcOi81v Onx4e7trRq3OfYjszXJwiAze9orp4KhkBWbvC1XK3fpBotl8q3MHsBV9y2MN0WRPlkWK 7iFgYSIrjQTRdimq2G2undxCauJklIwZdj+ZNB6QDjt1YGvkIgwtEKP5U/EowV7a3WhF EthQewoWRunWYe2G/XEXCzr8Pv6kFIngST2SxKKbzP2MoQAS7rxrS2N9IxyURVcOEpnr /ufDaZYSBDdWsHDUkQWf9e1od3tcgrEY6vk4uzuq8SidmkCk/LuEjgxbbUbVluIEhT0I jPqg== X-Gm-Message-State: AOAM530of4MW3gz8vOauowTiSpziv8HElelsuwK6cw1GHcF/nVZF0T0/ iBhil5fF4L3P+XB/+tq91Q== X-Google-Smtp-Source: ABdhPJzV7lHSAaPCIpfLtDq3OLUgefj/X2KavadZ2NnmpnbPgLsOcT7C0+3CfdxjsheCNj3k9xF1Cw== X-Received: by 2002:a05:6870:65a0:b0:ed:a635:eee9 with SMTP id fp32-20020a05687065a000b000eda635eee9mr2795975oab.48.1652279874613; Wed, 11 May 2022 07:37:54 -0700 (PDT) Received: from robh.at.kernel.org (66-90-144-107.dyn.grandenetworks.net. [66.90.144.107]) by smtp.gmail.com with ESMTPSA id t2-20020a056871020200b000e686d1388esm600266oad.40.2022.05.11.07.37.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 May 2022 07:37:54 -0700 (PDT) Received: (nullmailer pid 272781 invoked by uid 1000); Wed, 11 May 2022 14:37:53 -0000 Date: Wed, 11 May 2022 09:37:53 -0500 From: Rob Herring To: Rex-BC Chen Cc: rafael@kernel.org, roger.lu@mediatek.com, krzk+dt@kernel.org, robh+dt@kernel.org, hsinyi@google.com, angelogioacchino.delregno@collabora.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, matthias.bgg@gmail.com, devicetree@vger.kernel.org, linux-mediatek@lists.infradead.org, khilman@baylibre.com, jia-wei.chang@mediatek.com, Project_Global_Chrome_Upstream_Group@mediatek.com, linux-pm@vger.kernel.org, viresh.kumar@linaro.org Subject: Re: [PATCH v6 01/10] dt-bindings: cpufreq: mediatek: Add MediaTek CCI property Message-ID: <20220511143753.GA272748-robh@kernel.org> References: <20220505115226.20130-1-rex-bc.chen@mediatek.com> <20220505115226.20130-2-rex-bc.chen@mediatek.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20220505115226.20130-2-rex-bc.chen@mediatek.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220511_073756_528447_3B764AA1 X-CRM114-Status: GOOD ( 13.11 ) 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 Thu, 05 May 2022 19:52:17 +0800, Rex-BC Chen wrote: > MediaTek Cache Coherent Interconnect (CCI) uses software devfreq module > for scaling clock frequency and adjust voltage. > The phandle could be linked between CPU and MediaTek CCI for some > MediaTek SoCs, like MT8183 and MT8186. > > The reason we need the link status between cpufreq and MediaTek cci is > cpufreq and mediatek cci could share the same regulator in some MediaTek > SoCs. Therefore, to prevent the issue of high frequency and low voltage, > we need to use this to make sure mediatek cci is ready. > > Signed-off-by: Rex-BC Chen > Reviewed-by: AngeloGioacchino Del Regno > --- > .../devicetree/bindings/cpufreq/cpufreq-mediatek.txt | 7 +++++++ > 1 file changed, 7 insertions(+) > Acked-by: Rob Herring _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel